MP Patwari Group-2 (Sub Group-4) 2022 Official Paper (Held On: 24 Apr, 2023 Shift 2) (Previous Year Paper)

The correct answer is Sharath Kamal.

Key Points

• Star Indian paddler Sharath Kamal has become the first player from India to get elected in the Athletes' Commission of the International Table Tennis Federation (ITTF).
• Eight athletes, including four male and four female, were elected from Asia, Africa, the Americas, Europe, and Oceania and will serve in the Athletes' Commission for four years from 2022 to 2026.
• Sharath Kamal expressed gratitude to the whole of Asia and all the voters for their support and faith in him.
• He also thanked the Committee of Administrators (CoA) for forwarding his name to ITTF.
• Sharath Kamal has already been selected for the Major Dhyan Chand Khel Ratna Award, the country's highest sports recognition this year.

Additional Information

• The International Table Tennis Federation (ITTF) is the governing body for all national table tennis associations.
• The role of the ITTF includes overseeing rules and regulations and seeking technological improvement for the sport of table tennis.
• The ITTF is responsible for the organization of numerous international competitions, including the World Table Tennis Championships, which has continued since 1926.
• The Athletes' Commission is an elected body within ITTF that represents the interests and views of athletes in the decision-making processes.
• Sharath Kamal is considered one of India's greatest table tennis players, having won multiple national and international titles.

The correct answer is Hockey goalkeeper.

Key Points

• Legendary Goalkeeper – Shankar Laxman was one of India's most celebrated hockey goalkeepers, known for his incredible reflexes and bravery.
• Olympic Star – He represented India in three Olympic Games – 1956 (Melbourne), 1960 (Rome), and 1964 (Tokyo). India won gold in 1956 and 1964, and silver in 1960.
• Captaincy – He made history by becoming the first goalkeeper in the world to captain a national hockey team during the 1966 Asian Games.
• From Mhow (MP) – He hailed from Mhow, Madhya Pradesh, and was deeply rooted in the town's military and sporting tradition.
• Army Man – Shankar Laxman served in the Indian Army, which also played a role in nurturing his hockey career.
• Awards & Honors – He was awarded the Arjuna Award in 1965 for his outstanding contribution to Indian hockey.

The correct answer is North Star.

Key Points

• The Pole Star is commonly referred to as the North Star.
• It is also known as Polaris, derived from the Latin name Stella Polaris, which means "Pole Star."
• The North Star is located nearly in a direct line with the Earth's rotational axis above the North Pole.
• It has been historically used for navigation as it remains almost fixed in the sky, indicating the direction of true north.

Additional Information

• Polaris:
• Polaris is a part of the constellation Ursa Minor (Little Bear).
• It is a multiple star system, consisting of the main star Polaris A and its companions Polaris B and Polaris Ab.
• Guiding Star:
• Historically, mariners and explorers used Polaris for navigation, as it provided a stable reference point in the night sky.
• Lodestar:
• The term "lodestar" is an old English term meaning a star that leads or guides.
• It is often used metaphorically to refer to someone or something that acts as a guiding principle.
• Precession of the Equinoxes:
• The Earth's rotational axis undergoes a slow wobble called precession, which causes the position of the North Star to change over thousands of years.
• In a few thousand years, Polaris will no longer be the North Star, and another star will take its place.

The correct answer is Mumbai.

Key Points

• Headquarters – The Indian Banks' Association (IBA) is headquartered in Mumbai, Maharashtra, which is also the financial capital of India.
• Established – It was founded on 26 September 1946, with the goal of improving cooperation among banks in India.
• Purpose – IBA represents banking interests, frames policies, provides a platform for discussion and coordination, and helps in resolving industry-wide issues.
• Membership – It consists of public sector banks, private sector banks, foreign banks, cooperative banks, and regional rural banks (RRBs) operating in India.
• Key Role – IBA plays a major role in areas like human resource development, wage negotiations, and banking reforms.
• Regulatory Interface – Though not a regulatory body, IBA works closely with RBI, Ministry of Finance, and other key institutions for smooth functioning of the banking system.

The correct answer is Rajasthan.

Key Points

• Largest by Area – Rajasthan is the largest state in India in terms of geographical area, covering around 342,239 sq km.
• Desert State – A major part of the state is covered by the Thar Desert, also known as the Great Indian Desert.
• Border State – Rajasthan shares its international border with Pakistan and national borders with several Indian states like Gujarat, Madhya Pradesh, Punjab, and Haryana.
• Historical Importance – Known for its rich cultural heritage, forts, palaces, and royal history, with cities like Jaipur, Udaipur, Jodhpur, and Jaisalmer.
• Capital City – The capital of Rajasthan is Jaipur, often referred to as the Pink City.
• Population vs. Area – Though it's the largest by area, Rajasthan is not the most populous state—that title goes to Uttar Pradesh.

The correct answer is Subsection (1) of section 50.

Key Points

• The States Reorganization Act, 1956 was a major reform of the boundaries and governance of India's states and territories.
• Section 50 (1) of the Act empowered the President of India to establish permanent benches of High Courts.
• Through the presidential notification, permanent benches of the High Court of Madhya Pradesh were established at Indore and Gwalior.
• This legal provision aimed to facilitate better access to judicial services for residents of different regions within Madhya Pradesh.
• The establishment of these benches was part of broader efforts to reorganize state boundaries and administrative structures post-independence.

Additional Information

• States Reorganization Act, 1956:
• The Act was passed by the Parliament of India to reorganize states based on linguistic lines.
• This legislation led to the creation of several new states and the alteration of boundaries for existing states.
• The Act came into effect on 1 November 1956, marking a significant change in India's administrative map.
• High Courts in India:
• High Courts are the principal civil courts of original jurisdiction in each state and union territory.
• They also have appellate jurisdiction over lower courts.
• The establishment of permanent benches helps in reducing the burden on the main High Court and ensures faster disposal of cases.
• Presidential Notifications:
• These are orders issued by the President of India under various constitutional and legal provisions.
• Such notifications are used for administrative purposes, including the establishment of judicial benches.
• Judicial Administration:
• Effective judicial administration is crucial for upholding the rule of law and ensuring justice.
• The establishment of regional benches helps in decentralizing judicial services.

The correct answer is Lord Irwin.

Key Points

• Lala Lajpat Rai was a prominent freedom fighter who played a significant role in India's independence movement.
• He died on November 17, 1928, after sustaining injuries from a police lathi charge during a protest against the Simon Commission.
• At the time of Lala Lajpat Rai's death, Lord Irwin was the Viceroy of India.
• Lord Irwin, also known as Edward Frederick Lindley Wood, served as Viceroy from 1926 to 1931.
• Lord Irwin succeeded Lord Reading and was in office during the period of significant political unrest in India.

Additional Information

• Lala Lajpat Rai:
• Lala Lajpat Rai was a leader of the Indian National Congress and a key figure in the Indian independence movement.
• He was part of the Lal-Bal-Pal trio, which included Bal Gangadhar Tilak and Bipin Chandra Pal, advocating for self-rule.
• He contributed to the founding of the Punjab National Bank and the Lakshmi Insurance Company.
• He wrote several books, including "The Story of My Deportation," "Young India," and "England's Debt to India."
• Lord Irwin:
• Lord Irwin's tenure as Viceroy included the period of the Civil Disobedience Movement led by Mahatma Gandhi.
• He played a role in the negotiations leading to the Gandhi-Irwin Pact in 1931.
• His policies and actions were significant in shaping the political landscape of colonial India during his tenure.
• After his term as Viceroy, Lord Irwin continued to be involved in British politics and held various positions, including Foreign Secretary.
• Simon Commission:
• The Simon Commission was formed by the British government in 1927 to review the political situation in India and propose constitutional reforms.
• It faced widespread opposition in India because it did not include any Indian members.
• Protests against the Commission were led by prominent leaders, including Lala Lajpat Rai, who was injured during a demonstration.
• The Commission's report eventually led to the Government of India Act 1935, which provided provincial autonomy but was criticized for not granting full independence.

The correct answer is Roger Binny.

Key Points

• Roger Binny was appointed as the president of the Board of Control for Cricket in India (BCCI) in October 2022.
• He succeeded Sourav Ganguly, who served as the BCCI president from 2019 to 2022.
• Roger Binny is a former Indian cricketer who was part of the 1983 World Cup-winning team.
• He has previously served as a selector for the Indian national team and has been involved in cricket administration at various levels.
• His appointment was part of the BCCI's Annual General Meeting held in Mumbai.

Additional Information

• Sourav Ganguly
• He served as the president of BCCI from 2019 to 2022.
• Ganguly is a former Indian cricketer and captain of the Indian national team.
• Under his leadership, Indian cricket saw significant administrative changes.
• BCCI
• The Board of Control for Cricket in India is the governing body for cricket in India.
• It was established in December 1928.
• BCCI is responsible for organizing domestic and international cricket matches involving the Indian team.
• 1983 Cricket World Cup
• India won its first Cricket World Cup in 1983 under the captaincy of Kapil Dev.
• Roger Binny was a key player in the team, contributing significantly with both bat and ball.
• The victory is considered a landmark moment in Indian cricket history.
• Selectors in Cricket
• Selectors are responsible for choosing players for the national team.
• They assess player performance in domestic and international matches.
• Roger Binny has served as a selector for the Indian national team.

The correct answer is Kanupriya Agarwal.

Key Points 

• India’s First Test Tube Baby – Kanupriya Agarwal (also known as Durga) was born on October 3, 1978, in Kolkata, making her India’s first test tube baby.
• Pioneering Doctor – She was conceived through IVF (In Vitro Fertilization) under the guidance of Dr. Subhash Mukhopadhyay, a pioneering Indian scientist and gynecologist.
• Controversial Recognition – Although Dr. Mukhopadhyay achieved the feat in 1978, he was not recognized for his contribution during his lifetime. Recognition came posthumously after years of struggle and debate.
• Born in Kolkata – Kanupriya was born in Kolkata, West Bengal, just months after Louise Brown, the world’s first test tube baby born in the UK.
• Against All Odds – Dr. Mukhopadhyay faced bureaucratic indifference and professional opposition, which led to immense personal struggle despite his groundbreaking work.
• Symbol of Scientific Achievement – Today, Kanupriya represents a milestone in India’s medical and scientific history, opening the doors for IVF technology in India.

The correct answer is 3) about 21.9 km.

Key Points

• India's territorial sea limit extends up to 12 nautical miles from its baseline.
• 1 nautical mile is equivalent to 1.852 kilometers.
• Therefore, 12 nautical miles equals approximately 21.9 kilometers.
• This territorial sea limit is in accordance with the United Nations Convention on the Law of the Sea (UNCLOS).
• Within this 12-nautical-mile limit, India has sovereignty over the air space above and the sea bed and subsoil beneath.

Additional Information

• United Nations Convention on the Law of the Sea (UNCLOS):
• It is an international agreement that defines the rights and responsibilities of nations in their use of the world's oceans.
• UNCLOS provides guidelines for businesses, the environment, and the management of marine natural resources.
• The convention was opened for signature on December 10, 1982, and came into force on November 16, 1994.
• Exclusive Economic Zone (EEZ):
• The EEZ extends from the edge of the territorial sea out to 200 nautical miles from the baseline.
• Within this zone, a coastal nation has rights to the exploration and use of marine resources, including energy production from water and wind.
• Contiguous Zone:
• This zone extends up to 24 nautical miles from the baseline, where a state can enforce laws in four specific areas: customs, taxation, immigration, and pollution.
• Baseline:
• The baseline is the low-water line along the coast as officially recognized by the coastal state.
• It is used to measure the breadth of the territorial sea, contiguous zone, and EEZ.

The correct answer is Pradhan mantari yuva yojana.

Key Points

• Focus on Entrepreneurship – Pradhan Mantri Yuva Yojana (PMYY) is aimed at promoting entrepreneurship education and training, mainly among the youth, rather than directly targeting poverty alleviation.
• Training-Based Scheme – The scheme provides entrepreneurship development programs through institutes and colleges, helping young people build and run their own ventures.
• Not a Direct Poverty Scheme – Unlike other schemes like PM Awas Yojana or Garib Kalyan Yojana, PMYY doesn’t directly offer financial assistance, housing, or subsidies to the poor.
• Target Group – It focuses on students, aspiring entrepreneurs, and start-ups, not necessarily people below the poverty line.
• Launched in 2016 – The scheme was launched to promote the Start-up India mission and enhance job creators, not job seekers.
• Other Schemes are Poverty-Related:
• PM Awas Yojana: Provides affordable housing to the poor.
• Integrated Rural Development Program (IRDP): A classic anti-poverty program.
• PM Garib Kalyan Yojana: Offers financial support and food security to poor and vulnerable sections.

The correct answer is 1976.

Key Points

• 42nd Constitutional Amendment Act – Passed in 1976, during the Emergency period under Prime Minister Indira Gandhi, it is famously called the "Mini Constitution" due to its wide-ranging changes.
• Part IVA Introduced – This amendment introduced a new Part IVA to the Constitution, which contains the Fundamental Duties (Article 51A) for Indian citizens.
• Indira Gandhi’s Influence – The amendment reflected the strong influence of Indira Gandhi’s government, which is why it's also called the "Constitution of Indira".
• Major Constitutional Changes – It made significant changes to the Preamble, strengthened the Directive Principles, curtailed the powers of the judiciary, and increased the term of the Lok Sabha and State Assemblies from 5 to 6 years (later reverted).
• Controversial Nature – The amendment faced criticism for centralizing power, reducing judicial independence, and impacting democratic balance.
• Historical Context – It was enacted during the Emergency period (1975–1977), a time marked by suspension of civil liberties and press freedom.

The correct answer is Charter Act 1793.

Key Points

• Charter Act, 1793 separated the revenue and judicial functions which previously worked together.
• This Act marked the beginning of government by written laws, ending the personal laws governing people and their properties.
• Charter Act, 1793 allowed the East India Company to issue licenses for country trade, significantly increasing the opium trade to China.
• John Shore was the Governor-General of Bengal during the Charter Act, but the separation of revenue and judicial functions was carried out by Lord Cornwallis under the Cornwallis Code.
• The Charter Act granted the East India Company a license to conduct business and trade for the next 20 years.

Additional Information

• Charter Act 1813:
• Renewed the charter issued to the British East India Company and continued the Company's rule in India.
• Provided financial grants for the revival of Indian literature and the promotion of science.
• Allocated Rs. 1 lakh for the education of Indians.
• Charter Act 1853:
• Empowered the British East India Company to retain territories and revenues in India in trust for the crown without a specified period.
• Unlike previous Charter Acts, it did not renew the charter for a fixed term of 20 years.
• Cornwallis Code (1793):
• Enactment by Lord Cornwallis that constituted the administrative framework in British India known as the Cornwallis or Bengal system.
• Gave legal form to measures that separated revenue and judicial functions.
• Wood's Dispatch (1854):
• Known as the Magna Carta of Indian Education.
• Implemented by British rulers to promote educational reforms in pre-independent India.

The correct answer is Inflation with depression.

Key Points

• Stagflation refers to an economy that is experiencing a simultaneous increase in inflation and stagnation of economic output.
• It is a period of rising inflation and unemployment but falling output.
• Stagflation is a combination of stagnant economic growth, high unemployment, and high inflation.
• Stagflation was first recognized during the 1970s, where many developed economies experienced rapid inflation and high unemployment as a result of an oil shock.
• Generally, stagflation occurs when the money supply is expanding while supply is being constrained.

Additional Information

• Deflation
• It is a decrease in the general price levels of goods and services, i.e., opposite to inflation.
• Inflation
• It is the rate at which the general level of prices for goods and services is rising, leading to a decrease in purchasing power.
• Recession
• A significant decline in economic activity spread across the economy, lasting more than a few months.
• It is typically recognized by a fall in GDP in two successive quarters.
• Economic Depression
• A severe and prolonged downturn in economic activity, characterized by significant declines in income, employment, industrial production, and trade.
• The Great Depression of the 1930s is the most well-known example.

The correct answer is Article 262.

Key Points

• Article 262 – This article specifically provides for the resolution of disputes between states regarding water distribution and the establishment of inter-state water tribunals.
• Inter-State Water Disputes – Article 262 empowers the Parliament to create laws for the adjudication of disputes related to the sharing of river waters between states.
• Water Tribunals – This article also allows the formation of a tribunal to resolve any conflicts between states, as seen with the Krishna, Cauvery, and Godavari water disputes.
• Supremacy of Parliament – The article gives Parliament the exclusive authority to legislate on such matters, ensuring a central authority in case states cannot resolve disputes by themselves.
• Precedence in Disputes – Historically, inter-state water disputes tribunals have been formed under the provisions of this article to ensure an equitable distribution of water resources.
• Non-Judicial Resolution – It also limits the jurisdiction of courts in such matters, as disputes related to water sharing are to be handled by tribunals instead.

The correct answer is Oligopolistic.

Key Points

• Oligopoly is a market structure characterized by a small number of firms that dominate the market.
• Firms in an oligopolistic market are interdependent, meaning the decisions of one firm affect the others.
• Price rigidity is common in oligopolistic markets due to the strategic behavior of firms.
• Products in an oligopoly can be either homogeneous or differentiated.
• Barriers to entry are typically high in oligopolistic industries, preventing new competitors from easily entering the market.

Additional Information

• Monopolistic Competition
• Monopolistic competition exists when many firms sell products that are similar but not identical.
• Firms have some degree of market power, allowing them to set prices within a certain range.
• Examples include retail clothing stores and restaurants.
• Monopoly
• A monopoly exists when a single firm controls the entire market for a product or service.
• There are significant barriers to entry, such as high costs or exclusive rights.
• Examples include utility companies and patented pharmaceuticals.
• Perfect Competition
• Perfect competition is a theoretical market structure characterized by many small firms producing identical products.
• There are no barriers to entry or exit in a perfectly competitive market.
• Firms are price takers, meaning they accept the market price determined by supply and demand.
• Examples are rare but include agricultural markets for certain crops.

The correct answer is Rock Edict XIII.

Key Points

• Rock Edict XIII of Ashoka mentions the casualties of the Kalinga war.
• It states that 150,000 people were deported, 100,000 were killed, and many more died due to other causes.
• After witnessing the devastation, Ashoka felt deep remorse for the suffering caused by the war.
• He announced his commitment to Dharma and non-violence, renouncing further conquest.

Additional Information

• Major Rock Edicts of Ashoka:
• Ashoka issued 14 major rock edicts, which are inscriptions on rocks and pillars.
• These edicts outline his policies, principles of governance, and his commitment to Dharma.
• Concept of Dharma:
• Dharma in Ashoka's context refers to moral laws, ethics, and social responsibilities.
• Ashoka promoted non-violence, tolerance, and welfare of his subjects as part of his Dharma policy.
• Impact of Kalinga War:
• The Kalinga War was a turning point in Ashoka's reign, leading to his conversion to Buddhism.
• It significantly influenced his governance, focusing on peace and humanitarian values.
• Historical Context:
• Ashoka ruled from 268 to 232 BCE, and his edicts are crucial sources for understanding ancient Indian history.
• The edicts were spread across various regions, including India, Nepal, Pakistan, and Afghanistan.

The correct answer is Bank Rate.

Key Points

• Bank Rate is the official interest rate at which the Reserve Bank of India (RBI) lends to commercial banks for the long-term.
• The Bank Rate influences the cost of borrowing for commercial banks, thereby affecting the volume of credit and the supply of money in the economy.
• An increase in the Bank Rate typically indicates a tightening of monetary policy by the RBI, aiming to control inflation.
• The Bank Rate is distinct from short-term rates like the Repo Rate and Reverse Repo Rate, which are used for short-term liquidity management.

Additional Information

• Cash Reserve Ratio (CRR):
• CRR is the percentage of a bank's total deposits that must be maintained with the RBI in the form of reserves.
• Higher CRR reduces liquidity in the banking system, while lower CRR increases it.
• Repo Rate:
• Repo Rate is the rate at which the RBI lends money to commercial banks in case of a shortfall of funds.
• It is a short-term measure used by the RBI to control inflation and manage liquidity.
• Reverse Repo Rate:
• Reverse Repo Rate is the rate at which the RBI borrows money from commercial banks by lending government securities.
• It is used by the RBI to absorb excess liquidity from the banking system.

The correct answer is Mimansa - Kannada.

Key Points

• Mimansa - The Mimansa philosophy was founded by Rishi Jaimini, not Kannada.
• Nyaya - Founded by Gautama, this system deals with logic and epistemology.
• Sankhya - Established by Kapila, it explores the understanding of the creator and creation.
• Yoga - Founded by Patanjali, this system outlines the eight limbs of yoga for spiritual development.

Additional Information

• Vaisheshika - Founded by Kanada, this philosophy acknowledges the existence of the supreme soul and focuses on the true nature of the soul.
• Nyaya - Focuses on the suffering caused by the cycle of death and rebirth and emphasizes logical reasoning and epistemology.
• Sankhya - Proposes the existence of two eternal realities: soul and nature.
• Yoga - Emphasizes eight limbs, including moral conduct, discipline, posture, breathing, sense withdrawal, concentration, meditation, and ultimate bliss or salvation.
• Vedanta - Grounded by Ved Vyasa, it includes various sub-schools like Advaita, Vishista Advaita, and Dvaita, focusing on the relationship between God and the universe.

The correct answer is Competition from other ports.

Key Points

• The decline of the port of Surat in the 18th century was primarily due to competition from other emerging ports such as Bombay (Mumbai) and Calcutta (Kolkata).
• The British East India Company shifted its focus and resources to Bombay, enhancing its infrastructure and trading facilities.
• Surat's decline was also influenced by the shift in major trading routes and the growing importance of new ports under British control.
• The loss of Surat's monopoly over international trade significantly impacted its economic status, leading to its gradual decline.

Additional Information

• Bombay (Mumbai):
• The British East India Company took control of Bombay in 1668 and developed it as a major port.
• Strategically located with a natural deep-water harbor, it provided better facilities and security for traders.
• Calcutta (Kolkata):
• Calcutta emerged as a significant port in the 18th century with the establishment of the British East India Company's base.
• It became a major trading hub for the export of goods like jute, tea, and indigo.
• British East India Company:
• The company played a crucial role in shifting trade to new ports under their control, impacting traditional ports like Surat.
• They invested heavily in the infrastructure and fortifications of Bombay and Calcutta, making them more attractive to traders.
• Surat's Historical Significance:
• Before its decline, Surat was one of the most important ports in India, known for its prosperous trade in textiles, spices, and other goods.
• It was a key hub for the Mughal Empire's overseas trade.

The correct answer is 'unhappily'.

Key Points

• The word "unhappily" means in a way that is not happy. (दुखद रूप से)
• It is used to describe a state of being unhappy, especially in the context of relationships or situations.
• The other options: "special," "easy," and "happy" do not fit the context as appropriately.

​Therefore, the correct answer is 'Option 3'.

Complete Sentence: They had been unhappily married for years.

Additional Information

• Special (विशेष): means better, greater, or otherwise different from what is usual.
• Easy (आसान): means achieved without great effort; presenting few difficulties.
• Happy (खुश): means feeling or showing pleasure or contentment.

The correct answer is Option 4.

Key Points

• Passive voice structure: The object of the active voice sentence becomes the subject of the passive voice sentence.
• In the active voice, the sentence is: "He had held music dear to his heart ever since he was a young boy."
• To convert to passive voice: Place the object "music" at the beginning.
• Change the active verb form "had held" to "had been held" (past perfect passive).
• Add the preposition "by" followed by the original subject "him."
• Ensure the time phrase "ever since he was a young boy" remains at the end of the sentence for clarity.

Therefore, the correct answer is Option 4.

Correct Sentence: "Music had been held by him dear to his heart, ever since he was a young boy."

Additional Information

• Option 1: "Music is held by him dear to his heart, ever since he was a young boy." – Incorrect tense (present simple passive).
• Option 2: "Music is being held by him dear to his heart, ever since he was a young boy." – Incorrect tense (present continuous passive).
• Option 3: "Music was held by him dear to his heart, ever since he was a young boy." – Incorrect tense (past simple passive).

The correct answer is '2' i.e. in develop a strong supply chain of .

Key Points

• The error in the sentence is in the phrase "in develop a strong supply chain of".
• The correct form should be "in developing a strong supply chain of" to maintain proper grammatical structure.
• The verb "involve" is often followed by a gerund (verb + -ing).

Correct sentence: The company has been involved in developing a strong supply chain of local vendor partners in its businesses.

Additional Information

• Gerund Usage:
• Structure: Verb + -ing.
• Example: She is interested in learning new languages.
• Usage: Gerunds are used after prepositions and certain verbs.
• Infinitive Usage:
• Structure: To + base verb.
• Example: He decided to join the club.
• Usage: Infinitives are used after certain verbs, adjectives, and nouns.

The correct answer is Option 1.

Key Points

• The paragraph starts by introducing the concept of deep and eternal friendships, using rhetorical questions to prompt reflection.
• Sentence C is the first sentence as it introduces the idea of inevitability in friendships, which sets the tone for the rest of the paragraph:
• "There is about great friendships between man and man a certain inevitability that can only be compared with the age-old association of ham and eggs."
• Sentence E follows as it explains this inevitability using the analogy of ham and eggs, giving a concrete example:
• "No one can say what was the mutual magnetism that brought the deathless partnership of these wholesome and palatable foodstuffs about."
• Sentence D is the third sentence as it reinforces the idea by stating that such friendships feel destined:
• "One simply feels that it is one of the things that must be so."
• Sentence B is the fourth sentence as it applies the analogy to human relationships:
• "Similarly with men."
• The correct sequence is CEDBA.

Coherent paragraph after rearrangement:

"There is about great friendships between man and man a certain inevitability that can only be compared with the age-old association of ham and eggs. No one can say what was the mutual magnetism that brought the deathless partnership of these wholesome and palatable foodstuffs about. One simply feels that it is one of the things that must be so. Similarly with men. Who can trace to its first beginnings the love of Damon for Pythias, of David for Jonathan, of Swan for Edgar?"

The correct answer is: Option 3.

Key Points

• The phrase "to go the whole hog" means to do something completely and thoroughly, without holding back. (पूरी तरह से करना)
• Example: If you are planning to redecorate your house, why not go the whole hog and renovate it entirely?
• "To go all the way" implies proceeding to the very end or completing an action fully. (पूरी तरह से जाना)
• Example: They decided to go all the way and finish the marathon despite the bad weather.
• Hence, we can infer that the closest meaning to "to go the whole hog" is "to do it completely".

Therefore, the correct answer is: Option 3.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• To go in the fog (धुंध में जाना): Moving ahead without clear direction or understanding.
• Example: She felt like she was going in the fog while trying to figure out the complex problem.
• To go all the way (पूरी तरह से जाना): Proceeding to the very end or completing an action fully.
• Example: They decided to go all the way and finish the marathon despite the bad weather.
• To live there (वहाँ रहना): Reside in a particular place.
• Example: They chose to live there after buying the house.

The correct answer is: Option 3 i.e., Pardon.

Key Points

• The word "Amnesty" means an official pardon for people who have been convicted of political offences. (क्षमा)
• Example: The government granted amnesty to all political prisoners.
• "Pardon" refers to the action of forgiving or being forgiven for an error or offence. (माफी)
• Example: The president issued a pardon to the convicted felon.

Therefore, the correct answer is: Option 3 i.e., Pardon.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Freedom (स्वतंत्रता): The power or right to act, speak, or think as one wants without hindrance or restraint.
• Example: After years of oppression, the people finally gained their freedom.
• Reward (इनाम): A thing given in recognition of one's service, effort, or achievement.
• Example: She received a reward for her excellent performance at work.
• Generosity (उदारता): The quality of being kind and generous.
• Example: His generosity towards the poor is well-known in the community.

The correct answer is: Commoner.

Key Points

• The word "Plebeian" means a member of the lower social classes; a common person. (साधारण व्यक्ति)
• Example: In ancient Rome, plebeians had fewer rights than the patricians.
• "Commoner" refers to an ordinary person, without rank or title. (साधारण व्यक्ति)
• Example: Despite his wealth, he remained a commoner at heart.

Therefore, the correct answer is: Commoner.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Noble (उच्च कुलीन): Belonging to a class with high social or political status.
• Example: The noble family had a long history of service to the country.
• Aristocrat (अभिजात): A member of the aristocracy, a class of people holding exceptional rank and privileges.
• Example: The aristocrat lived in a grand mansion on the hill.
• Peasant (किसान): A poor farmer of low social status who owns or rents a small piece of land for cultivation.
• Example: The peasant worked tirelessly in the fields to provide for his family.

The correct answer is: Option 3.

Key Points

• The phrase "Lead someone a (merry) dance" means to cause someone a great deal of trouble or worry. (किसी को बहुत परेशानी में डालना)
• Example: He led his parents a merry dance with all his mischievous activities.
• Cause someone a great deal of trouble or worry refers to putting someone in a difficult or troublesome situation. (किसी को बहुत परेशानी में डालना)
• Example: The fraudulent contractor led the investors a merry dance, causing them significant financial losses.

Therefore, the correct answer is: Option 3.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Make someone very happy and contented (किसी को बहुत खुश और संतुष्ट करना):
• Example: The surprise party made her very happy and contented.
• Marry someone you are in love with (किसी से शादी करना जिससे आप प्यार करते हैं):
• Example: He finally married the woman he was in love with.
• Ask someone for a favour (किसी से एहसान माँगना):
• Example: She asked her friend for a favour to help her move to the new house.

The correct answer is option 3.

Key Points

The misspelled words are 'colandeer', 'bulfrog', and 'paraket'.

• The correct spellings would be 'colander', 'bullfrog', and 'parakeet' respectively.
• The word 'assemble' is correctly spelled and means 'to gather together in one place for a common purpose'. (इकट्ठा करना)
• For Example -
• The students assembled in the auditorium for the meeting.

Therefore, the correct answer would be 'assemble'.

Additional Information

Let's understand the meanings of the misspelled words - 

• Colander - a bowl with holes used for draining food such as pasta or rice (छलनी)
• Bullfrog - a very large frog that has a deep croak (एक प्रकार का मेंढक)
• Parakeet - a small parrot with predominantly green plumage and a long tail (तोता)

The correct answer is: Option 4.

Key Points

• The word "Qualm" refers to an uneasy feeling of doubt, worry, or fear, especially about one's own conduct. (संदेह, चिंता)
• Example: She felt a qualm of guilt after lying to her friend.
• "Scruple" is a feeling of doubt or hesitation regarding the morality or propriety of an action; it often prevents one from doing something wrong. (नैतिक संकोच)
• Example: He had scruples about cheating in the exam.
• Hence, we can infer that the word similar in meaning to 'Qualm' is 'Scruple'.

Therefore, the correct answer is: Option 4.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Impunity (दण्ड से मुक्ति): Exemption from punishment or freedom from the injurious consequences of an action.
• Example: The corrupt officials operated with impunity for many years.
• Persevere (लगातार प्रयास करना): Continue in a course of action even in the face of difficulty or with little or no prospect of success.
• Example: Despite the challenges, she persevered with her studies.
• Distress (कष्ट): Extreme anxiety, sorrow, or pain.
• Example: The news of the accident caused her great distress.

The correct answer is '3' i.e. The sound of the door awakened Dinah suddenly .

Key Points

• The given sentence is in the passive voice. The subject (Dinah) receives the action.
• In passive voice sentences, the structure is typically subject + auxiliary verb + past participle + by + agent.
• The active voice equivalent should place the agent (sound of the door) at the beginning followed by the verb and the receiver of the action.

Correct sentence: The sound of the door awakened Dinah suddenly.

Additional Information

• Active Voice:
• Structure: Subject + verb + object.
• Example: The teacher teaches the students.
• Usage: Commonly used to make sentences clear and direct.
• Passive Voice:
• Structure: Object + auxiliary verb + past participle + (by + subject).
• Example: The students are taught by the teacher.
• Usage: Used to emphasize the action or the recipient of the action rather than the doer.

The correct answer is: Option 1 i.e., To ignore someone.

Key Points

• The idiom "Give someone the cold shoulder" means to intentionally ignore or show indifference to someone. (किसी को अनदेखा करना)
• Example: After their argument, she decided to give him the cold shoulder whenever they met at work.
• "To ignore someone" refers to the act of deliberately paying no attention to someone or something. (किसी को अनदेखा करना)
• Example: He felt hurt when his friends ignored him at the party.

Therefore, the correct answer is: Option 1 i.e., To ignore someone.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• To display superiority (श्रेष्ठता प्रदर्शित करना): To show that one is better or more important than others.
• Example: He often displays superiority by talking down to his colleagues.
• To involve in a verbal dispute (मौखिक विवाद में शामिल होना): To engage in an argument or disagreement.
• Example: They got involved in a verbal dispute over the new policy changes.
• To delay things (चीजों में देरी करना): To postpone or put off actions or decisions.
• Example: He tends to delay things until the last minute, causing unnecessary stress.

The correct answer is Option 4.

Key Points

• Indirect Speech: She told me that she had no time for me.
• Key Conversions:
• "I have no time for you" becomes "she had no time for me"
• Pronoun "I" changes to "she" to reflect the person reporting the speech.
• Pronoun "you" changes to "me" to reflect the speaker's perspective.
• Present tense "have" changes to past tense "had" to maintain tense consistency in Indirect Speech.
• Reporting verb:
• Indirect: "said to" changes to "told" for reporting speech.
• Punctuation and Format:
• Direct speech is enclosed in quotation marks.
• Starts with a capital letter "She" in the reporting speech.
• The indirect speech is placed without quotation marks and follows the reporting verb.

Therefore, the correct answer is Option 4.

Correct Sentence: "She told me that she had no time for me."

Additional Information

• Option 1: "She pleaded that she has no time for me."
• Incorrect use of "pleaded" for reporting speech.
• Tense mismatch: "has" instead of "had" for indirect speech.
• Option 2: "She informed me that she has no time for you."
• Pronoun "you" should be "me" in indirect speech to match the speaker's perspective.
• Tense inconsistency: "has" should be "had" in indirect speech.
• Option 3: "She told me that I had no time for you."
• Incorrect subject "I" in indirect speech; it should be "she" instead.

The correct answer is Option 1.

Key Points

• Indirect Speech: Morpheus promised me that he would do that task for me the next day if I paid for that.
• Key Conversions:
• "I will do this task for you tomorrow if you pay for this" becomes "he would do that task for me the next day if I paid for that"
• Pronoun "I" changes to "he" to reflect Morpheus as the speaker.
• "Will" changes to "would" to reflect the shift in tense when converting to indirect speech.
• "This" becomes "that" and "tomorrow" changes to "the next day" to reflect the shift in time and perspective.
• Reporting verb:
• Indirect: "promised" is used as the reporting verb.
• Punctuation and Format:
• Direct speech is enclosed in quotation marks.
• The indirect speech is placed without quotation marks and follows the reporting verb.

Therefore, the correct answer is Option 1.

Correct Sentence: "Morpheus promised me that he would do that task for me the next day if I paid for that."

Additional Information

• Option 2: "Morpheus promised me that I will do this task for him the following day if I pay for that."
• Incorrect tense usage: "will" should be "would" in indirect speech to maintain consistency with the reporting verb "promised."
• Pronoun confusion: "I" should refer to Morpheus, but the structure suggests "I" refers to the speaker.
• Option 3: "Morpheus promised me that he would do that task for him the next day if he is paid for that."
• Incorrect pronoun usage: "him" should be "me" to match the speaker’s perspective.
• Tense inconsistency: "is paid" should be "I paid" to match the structure of indirect speech.
• Option 4: "Morpheus confessed that he will do that task for him the following day if I paid him for that."
• The use of "confessed" is incorrect here, as "promised" is the appropriate verb.
• Tense inconsistency: "will" should be "would" to maintain past tense in indirect speech.

The correct answer is '4' i.e. The plants in the garden are watered every morning by my mother. .

Key Points

• The given sentence is in the active voice, with the subject (my mother) performing the action (waters) on the object (the plants in the garden).
• To convert this sentence to the passive voice, the object of the active sentence becomes the subject of the passive sentence.
• The verb form changes to a form of 'be' + past participle (are watered).
• The doer of the action (my mother) is introduced by the preposition 'by'.

Correct sentence: The plants in the garden are watered every morning by my mother.

Additional Information

• Active Voice:
• Structure: Subject + Verb + Object.
• Example: My mother waters the plants.
• Usage: Focuses on the doer of the action.
• Passive Voice:
• Structure: Object + form of 'be' + past participle + (by Subject).
• Example: The plants are watered by my mother.
• Usage: Focuses on the action or the receiver of the action.

The correct answer is: Option 3 i.e., trouble ahead.

Key Points

• The idiom "Clouds on the horizon" means that there is trouble or difficulty expected in the future. (आने वाली परेशानी)
• Example: Despite the current success of the company, there are 645962b76d466eb9a1568681 due to the emerging competition.
• "Trouble ahead" indicates that problems or difficulties are expected to arise in the near future. (आगे मुसीबत)
• Example: With the looming financial crisis, there's definitely 645962b76d466eb9a1568681 for the economy.
• Hence, we can infer that 'Clouds on the horizon' means 'trouble ahead'.

Therefore, the correct answer is: Option 3 i.e., trouble ahead.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Unpredictable nature of someone (किसी का अप्रत्याशित स्वभाव): The tendency of someone to be unpredictable or erratic.
• Example: His unpredictable nature makes it difficult to work with him.
• Unpleasant weather (अप्रिय मौसम): Weather conditions that are not pleasant or enjoyable.
• Example: The forecast predicts unpleasant weather for the weekend, with heavy rains and strong winds.
• Additional expenditure (अतिरिक्त खर्च): Extra costs or expenses incurred beyond what was initially expected.
• Example: The project had additional expenditure due to unforeseen complications.

The correct answer is Option 4.

Key Points

• Passive voice structure: The object of the active voice sentence becomes the subject of the passive voice sentence.
• In the active voice, the sentence is: "They will organise the event."
• To convert to passive voice: Place the object "the event" at the beginning.
• Change the active verb form "will organise" to "will be organised" (future simple passive).
• Add the preposition "by" followed by the original subject "them."
• Ensure the time phrase remains at the end of the sentence for clarity.

Therefore, the correct answer is Option 4.

Correct Sentence: "The event will be organised by St. Stephens College."

Additional Information

• Option 1: "St. Stephens College has organised the event." – This is the active voice version in present perfect tense, which is incorrect for this context.
• Option 2: "St. Stephens College organises the event." – This is present tense, which is incorrect because the original sentence uses future tense.
• Option 3: "St. Stephens College organised the event." – Incorrect tense (past simple), not matching the original future tense.

The correct answer is 'skillful'.

Key Points

• The word "skillful" means having or showing skill. (कुशल)
• Police officers need to be proficient and capable drivers due to the nature of their job.
• The other options: "refuse," "cover," and "repair" do not fit the context as appropriately.

​Therefore, the correct answer is 'Option 2'.

Complete Sentence: Police officers should also be skillful drivers.

Additional Information

• Refuse (अस्वीकार करना): means to decline or reject.
• Cover (कवर): means to put something on top of or to protect.
• Repair (मरम्मत करना): means to fix or restore.

The correct answer is 'worrying'.

Key Points

• The word "worrying" means causing anxiety or concern. (चिंताजनक)
• A sustained decline in Chinese consumption would be even more concerning.
• The other options: "satisfy," "worry," and "disturb" do not fit the context as appropriately.

​Therefore, the correct answer is 'Option 3'.

Complete Sentence: A sustained decline in Chinese consumption would be even more worrying than the current US-China trade dispute.

Additional Information

• Satisfy (संतुष्ट करना): means to meet the expectations or desires.
• Worry (चिंता): means to feel anxious or concerned.
• Disturb (परेशान करना): means to interfere with the normal arrangement or functioning.

The correct answer is Option 1.

Key Points

• The paragraph begins by discussing the importance of courtesy and politeness as the key to good manners.
• Sentence Q is the first sentence as it introduces the main topic:
• "Courtesy and politeness is the key to good manners."
• Sentence P follows as it extends the idea of learning good manners from biographies of great men:
• "Biographies of great men can also help us in learning good manners."
• Sentence S is the third sentence because it discusses the use of polite words which create a healthy impact:
• "The use of polite words like 'Sorry', 'Please', 'Thank you', 'Beg your pardon', 'Sir' etc. creates a healthy impact on the minds of others."
• Sentence R is the fourth as it explains the power of these polite words when used appropriately:
• "No doubt these are little words but if they are spoken at the right moment and in a soft and sweet voice, they are bound to work wonders."
• The correct sequence is QPSR.

Coherent paragraph after rearrangement:

"Courtesy and politeness is the key to good manners. Biographies of great men can also help us in learning good manners. The use of polite words like 'Sorry', 'Please', 'Thank you', 'Beg your pardon', 'Sir' etc. creates a healthy impact on the minds of others. No doubt these are little words but if they are spoken at the right moment and in a soft and sweet voice, they are bound to work wonders."

The correct answer is: Option 2 i.e. When an attempt fails and it's time to start all over.

Key Points

• The idiom "Back to the drawing board" means returning to the planning stage after an unsuccessful attempt. (फिर से योजना बनाना)
• Example: After the prototype failed, the team had to go back to the drawing board to devise a new plan.
• "Back to the drawing board" refers to starting over from scratch after a failed attempt. (फिर से शुरू करना)
• Example: When the first marketing campaign didn't yield results, they went back to the drawing board to create a new strategy.
• Hence, we can infer that the correct interpretation of the idiom 'Back to the drawing board' is Option 2.

Therefore, the correct answer is: Option 2 i.e. When an attempt fails and it's time to start all over.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Option 1 (जब आप बेहद हताश होते हैं तो आपको कठोर कदम उठाने की आवश्यकता होती है): When you are extremely desperate you need to take drastic actions.
• Example: When the company faced bankruptcy, it had to take drastic actions to survive.
• Option 3 (जब किसी को दो विकल्पों के बीच चयन करना मुश्किल होता है): When someone finds it difficult to choose between two alternatives.
• Example: She was torn between accepting a promotion and moving to a new city.
• Option 4 (जब आप अतीत के नुकसान के बारे में शिकायत करते हैं): When you complain about a loss from the past.
• Example: He kept complaining about the missed opportunity from last year.

The correct answer is Option 1.

Key Points

• The paragraph begins by introducing the concept of time, highlighting its power and fleeting nature.
• Sentence R is the first sentence as it directly follows the idea of time being powerful and fleeting:
• "It flees with the blink of an eye."
• Sentence Q follows as it adds to the description of time's nature:
• "But its beauty lies in its eternal movement."
• Sentence P is the third sentence as it introduces a personal anecdote related to time:
• "One day while keeping the old books in a box"
• Sentence S is the fourth as it concludes the anecdote:
• "I found a very old photo album."
• The correct sequence is RQPS.

Coherent paragraph after rearrangement:

"It flees with the blink of an eye. But its beauty lies in its eternal movement. One day while keeping the old books in a box, I found a very old photo album. Nostalgia took me to the depths of past."

The correct answer is: Option 1 i.e., ban.

Key Points

• The word "proscribe" means to forbid or prohibit by law; to ban. (प्रतिबंधित करना)
• Example: The government decided to proscribe the use of certain chemicals in agriculture.
• "Ban" refers to officially or legally prohibiting something. (निषेध करना)
• Example: Smoking is banned in all public places.

Therefore, the correct answer is: Option 1 i.e., ban.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Remember (याद रखना): To recall or bring to mind.
• Example: She always remembers her grandmother's advice.
• Manipulate (हेरफेर करना): To control or influence someone or something cleverly or unscrupulously.
• Example: He tried to manipulate the results to his favour.
• Harmonise (संतुलित करना): To make things compatible or consistent.
• Example: The two teams worked together to harmonise their strategies.

The correct answer is '4' i.e., a visceral reaction .

Key Points

• The correct form of the phrase should be "a visceral reaction".
• The use of the article "an" is incorrect here as it should be "a" before a word starting with a consonant sound.
• "Visceral" is an adjective meaning related to deep inward feelings rather than to the intellect.

Correct sentence: The word 'riot' evokes a visceral reaction, calling up visions of chaos, disorder and offence to civil society.

Additional Information

• Usage of Articles:
• Article "a": Used before words starting with a consonant sound.
• Example: A dog, A university (Note: "university" starts with a consonant sound).
• Article "an": Used before words starting with a vowel sound.
• Example: An apple, An hour (Note: "hour" starts with a vowel sound).

The correct answer is '4' i.e., The last few years since .

Key Points

• The given sentence requires a correction in the bracketed part to make it grammatically accurate and contextually appropriate.
• The bracketed part "(last few years ago)" is incorrect because "ago" refers to a specific point in the past, and "last few years ago" is not a proper phrase.
• The correct phrasing should be "The last few years since," which implies the period starting from a few years ago up to now.

Correct sentence: The report highlighted that the last few years since demonetisation have witnessed a sea change in the payments landscape, with large growth in digital payments.

Additional Information

• Ensure that the correct phrase fits logically within the context of the sentence.
• Check for any grammatical errors and make sure the sentence flows smoothly.
• "The last few years since" is a correct phrase indicating the time period from a few years ago to the present.

The correct answer is Option 2.

Key Points

• Bathing regularly helps in maintaining personal hygiene and keeping the body free from germs, dirt, and body lice.
• Regular bathing with soap and water removes dead skin cells, dirt, and sweat which can harbor bacteria.
• Maintaining cleanliness through regular bathing can prevent skin infections and promote overall health.
• However, intestinal worms are typically acquired through contaminated food, water, or soil and not prevented by regular bathing.

Additional Information

• Intestinal Worms:
• Intestinal worms are parasites like roundworms, tapeworms, and hookworms that infect the gastrointestinal tract of humans and other animals.
• They are commonly transmitted through ingestion of contaminated food or water.
• Symptoms of intestinal worm infections can include abdominal pain, diarrhea, nausea, and weight loss.
• Personal Hygiene:
• Personal hygiene involves practices like bathing, washing hands, brushing teeth, and wearing clean clothes to maintain cleanliness and health.
• Good personal hygiene can prevent the spread of diseases and infections.
• Body Lice:
• Body lice are tiny insects that infest human clothing and bedding, causing itching and rash.
• They can be eliminated through regular washing of clothes and bedding at high temperatures.
• Germs:
• Germs are microorganisms like bacteria, viruses, fungi, and protozoa that can cause diseases.
• Regular handwashing and bathing are effective ways to reduce the presence of harmful germs on the body.

The correct answer is Cerebellum.

Key Points

• The cerebellum is located at the back of the brain, underneath the cerebrum.
• It is primarily responsible for coordinating voluntary movements, including maintaining balance and coordination during walking.
• The cerebellum fine-tunes movements to ensure smooth, coordinated motion.
• While the motor cortex in the cerebrum also contributes to walking control, the cerebellum is crucial for the precision and smoothness of the movement.

Additional Information

• Medulla:
• The medulla oblongata is a part of the brainstem located between the pons and the spinal cord.
• It controls several involuntary functions such as breathing, heart rate, blood pressure, and digestion.
• Cerebrum:
• The cerebrum is the largest part of the brain and is divided into two hemispheres.
• It is responsible for complex functions like conscious thought, reasoning, sensory processing, motor control, language, and memory.
• The cerebrum is involved in the conscious perception of walking.
• Pons:
• The pons is a region of the brainstem located above the medulla and below the midbrain.
• It acts as a bridge connecting different parts of the brain and plays a role in relaying signals between the cerebrum and the cerebellum.
• The pons also regulates sleep, breathing, swallowing, and facial movements.

The correct answer is Parthenium.

Key Points

• Carrot grass, scientifically known as Parthenium hysterophorus, is an invasive weed species.
• It is native to the Americas and has spread to many countries, including India, causing significant environmental and health issues.
• Parthenium is known for its high adaptability and rapid growth, often outcompeting native vegetation and reducing biodiversity.
• This weed is also notorious for causing allergic reactions in humans, such as skin rashes, respiratory problems, and asthma.
• Efforts to control its spread include biological control methods, chemical herbicides, and manual removal.

Additional Information

• Cyperus rotundus:
• Commonly known as nut grass or purple nutsedge, it is a perennial weed found in tropical and subtropical regions.
• It is known for its extensive underground tuber system, making it difficult to eradicate.
• Alligator Weed:
• Scientifically known as Alternanthera philoxeroides, it is an aquatic weed native to South America.
• It invades waterways, reducing water flow and affecting aquatic life.
• Cockleburs:
• Plants belonging to the genus Xanthium, known for their spiny burs that can attach to animals and clothing.
• They are common weeds in agricultural fields and can be toxic to livestock if ingested.
• Biological Control of Weeds:
• Involves the use of natural enemies like insects, pathogens, or grazing animals to control invasive weed species.
• Examples include the use of Zygogramma bicolorata beetles to control Parthenium in India.

The correct answer is Option 2.

Key Points

• A cyclone alert is issued 48 hours in advance to provide adequate preparation time.
• It helps in ensuring the safety of people and minimizing damage to property.
• The alert allows for timely evacuation and implementation of emergency measures.
• Issued by meteorological departments based on weather forecasts and satellite data.
• Essential for coastal areas prone to cyclones to avoid catastrophic impacts.

Additional Information

• Tropical Cyclones
• These are well-developed low-pressure systems forming over warm ocean waters.
• They are characterized by strong winds, heavy rains, and can cause significant coastal flooding.
• Known by different names in various regions: Hurricanes (Atlantic), Typhoons (Pacific), Cyclones (Indian Ocean).
• Hurricane
• A type of tropical cyclone with a calm, rainless center known as the eye.
• Winds can exceed 74 mph and are categorized on the Saffir-Simpson scale.
• Can cause widespread destruction through wind, storm surge, and heavy rainfall.
• Anticyclone
• Opposite of a cyclone, characterized by high pressure at the center.
• Associated with clear, calm weather conditions.
• Isobars are far apart indicating weak pressure gradients.
• Typhoon
• A tropical cyclone occurring in the northwest Pacific Ocean.
• Most frequent from July to October, affecting countries like Japan, Philippines, and China.
• Characterized by torrential rain, strong winds, and thunderstorms.

The correct answer is Used as an explosive.

Key Points

• Trinitrotoluene (TNT):
• Trinitrotoluene (TNT) is a pale yellow, solid organic nitrogen compound.
• TNT is primarily used as an explosive due to its stability and the ease with which it can be detonated.
• It is commonly used in military shells, bombs, and grenades, as well as in industrial applications.
• TNT melts at 82°C and does not explode below 240°C, making it safe to handle and transport under controlled conditions.
• Abrasive:
• Abrasives are materials used to grind, smooth, or polish other softer materials.
• Common examples include sandpaper, grinding wheels, and emery boards.
• Abrasives are used in manufacturing processes to shape parts and finish surfaces.
• Fusing Metals:
• Fusing metals involves joining two or more metal pieces by melting them together.
• Common techniques include welding, soldering, and brazing.
• These processes are vital in construction, manufacturing, and repairs.
• Melting Metals:
• Melting metals involves heating them until they become liquid.
• This process is used in metal casting, recycling, and alloy production.
• Metals like iron, aluminum, and gold have specific melting points which determine the heat required for melting.

Additional Information

• Explosives Classification:
• Explosives are classified into low and high explosives based on their detonation speed.
• Low explosives, such as black powder, deflagrate or burn rapidly.
• High explosives, including TNT and dynamite, detonate with a supersonic shock wave.
• Research & Development Explosive (RDX):
• RDX is another well-known explosive, also known as cyclonite or hexogen.
• It is more powerful than TNT and is used in military and industrial applications.
• RDX is often used in mixtures with other substances to create various explosive compositions.
• Alfred Nobel:
• Alfred Nobel was a Swedish chemist, engineer, and inventor.
• He is best known for inventing dynamite and establishing the Nobel Prizes.
• Nobel's work in explosives laid the foundation for modern industrial and military applications.
• Explosive Safety:
• Handling explosives requires strict safety protocols to prevent accidental detonation.
• Protective gear, controlled environments, and proper storage are essential for safety.
• Regulatory bodies oversee the manufacture, transport, and use of explosives to ensure public safety.

The correct answer is Sublimation.

Key Points

• Sublimation Process – Sublimation is the process where a substance changes directly from a solid to a gas without passing through the liquid phase. Naphthalene undergoes sublimation when heated.
• Naphthalene’s Property – Naphthalene has the ability to sublime, meaning it will turn directly into a gas when heated, leaving the sand behind.
• Sand’s Inertness – Sand does not sublime and remains in its solid form when heated, so it can be easily separated from naphthalene.
• Practical Method – In the laboratory, the mixture of sand and naphthalene can be heated in a sublimation apparatus, allowing the naphthalene to vaporize and then condense back into a solid on a cold surface.
• Simplicity – This is an efficient and simple method to separate volatile substances like naphthalene from non-volatile substances like sand.
• Other Methods – The other methods like fractional distillation, chromatography, and filtration are not suitable for separating sand and naphthalene because of their physical properties.

The correct answer is Kanpur.

Key Points

• The National Sugar Institute (NSI) is indeed located in Kanpur, Uttar Pradesh.
• It was established in 1936 and is situated in the Kalyanpur area of Kanpur.
• The institute functions under the Ministry of Consumer Affairs, Food & Public Distribution, Government of India, and serves as a premier institution for research, training, and advisory services to the sugar and allied industries. ​

The correct answer is Momentum = Mass × Velocity.

Key Points

• Momentum is a fundamental concept in physics, defined as the product of an object's mass and its velocity.
• The equation for momentum is p = m × v, where 'p' represents momentum, 'm' represents mass, and 'v' represents velocity.
• Momentum is a vector quantity, meaning it has both magnitude and direction.
• In the International System of Units (SI), momentum is measured in kilogram meters per second (kg·m/s).
• The conservation of momentum principle states that the total momentum of a closed system remains constant if no external forces act on it.

Additional Information

• Impulse:
• Impulse is the change in momentum of an object when a force is applied over a time interval.
• It is given by the equation Impulse = Force × Time.
• Impulse is also a vector quantity and is measured in Newton seconds (N·s).
• Newton's Second Law of Motion:
• This law states that the rate of change of momentum of an object is directly proportional to the applied force and occurs in the direction of the force.
• It is mathematically expressed as F = m × a, where 'F' is force, 'm' is mass, and 'a' is acceleration.
• Elastic and Inelastic Collisions:
• In an elastic collision, both momentum and kinetic energy are conserved.
• In an inelastic collision, momentum is conserved, but kinetic energy is not.
• Real-world collisions are often partially elastic or inelastic.
• Applications of Momentum:
• Momentum concepts are crucial in fields such as automotive safety (e.g., airbags and crumple zones).
• They are also important in sports science, rocketry, and various engineering disciplines.

The correct answer is Acid Rain.

Key Points

• When acid rains fall on the Taj Mahal, they react with the marble to form a powder-like substance that is washed away by the rain. This phenomenon is known as marble cancer.
• The Mathura oil refinery near Agra emits soot particles that contribute to the yellowing of the Taj Mahal's marble.
• Acid rain contains sulfur dioxide (SO2) and nitrogen oxides (NOx), which are released from industrial processes and vehicles, and these compounds react with water vapor to form acids.
• The Taj Mahal has been subjected to acid rain, which has eroded its marble facade over time, contributing to its deterioration.
• Despite protective measures, the Taj Mahal continues to suffer from environmental pollution, showcasing a significant decline in its condition over recent years.

Additional Information

• Soil Erosion
• It is the natural process in which the topsoil is carried away by wind and water.
• Soil erosion leads to the loss of fertile topsoil, reducing agricultural productivity and causing ecological degradation.
• Noise Pollution
• Also known as sound pollution, it refers to excessive noise that adversely affects human and animal life.
• Common sources include industrial activities, transportation, and urbanization.
• Water Pollution
• Water pollution is the contamination of water bodies such as lakes, rivers, and oceans due to human activities.
• It disrupts aquatic ecosystems and poses health risks to humans and wildlife.
• Acid Rain
• Acid rain is formed when sulfur dioxide (SO2) and nitrogen oxides (NOx) emitted by industrial activities and vehicles react with water vapor in the atmosphere to form acids.
• It can cause significant damage to buildings, monuments, and ecosystems by eroding surfaces and altering soil and water chemistry.

The correct answer is Higher Kinetic Energy.

Key Points

• Kinetic energy is directly proportional to the mass and the square of the velocity of an object (KE = 1/2 m v^2).
• Given two identical bodies in motion, the body with the higher velocity will have a higher kinetic energy.
• Kinetic energy increases quadratically with velocity, meaning even small increases in velocity can result in significant increases in kinetic energy.
• In the context of identical bodies, since mass remains constant, the determining factor for kinetic energy is velocity.

Additional Information

• Potential Energy:
• Potential energy is the energy stored in an object due to its position or configuration.
• Unlike kinetic energy, potential energy does not depend on the object's velocity.
• Law of Conservation of Energy:
• Energy cannot be created or destroyed, only converted from one form to another.
• Kinetic energy can be transformed into potential energy and vice versa.
• Velocity:
• Velocity is the rate at which an object changes its position.
• It is a vector quantity, meaning it has both magnitude and direction.
• Mass:
• Mass is the measure of the amount of matter in an object.
• It remains constant regardless of the object's position or velocity.

The correct answer is Hydrogen.

Key Points

• Hydrogen is the most abundant element in the universe, making up about 75% of its elemental mass.
• It is the lightest element, with an atomic number of 1 and an atomic weight of approximately 1.008.
• Hydrogen exists primarily in the form of molecular hydrogen (H₂), and is a major component of stars, including the Sun.
• In stars, hydrogen undergoes nuclear fusion to form helium, which releases energy that powers the stars.
• It is a colorless, odorless, and highly flammable gas at standard temperature and pressure.

Additional Information

• Isotopes of Hydrogen:
• Hydrogen has three naturally occurring isotopes: Protium (¹H), Deuterium (²H or D), and Tritium (³H or T).
• Protium is the most common isotope, with no neutrons in its nucleus.
• Deuterium, also known as heavy hydrogen, has one neutron.
• Tritium is radioactive and has two neutrons.
• Hydrogen in the Universe:
• Hydrogen is found in large quantities in stars and gas giant planets.
• It plays a crucial role in the formation of celestial bodies and the chemical evolution of the universe.
• The fusion of hydrogen in stars is responsible for the production of heavier elements.
• Applications of Hydrogen:
• Hydrogen is used in various industries, including the production of ammonia for fertilizers, petroleum refining, and as a fuel source.
• It is also being explored as a clean energy carrier in fuel cells, which produce electricity through the reaction of hydrogen and oxygen, emitting only water as a byproduct.
• Physical Properties:
• Hydrogen has a boiling point of -252.87°C and a melting point of -259.14°C.
• It is the lightest and simplest element, consisting of only one proton and one electron.

The correct answer is Aluminium Oxide.

Key Points

• Amphoteric Oxides – These are oxides that can react with both acids and bases to form salt and water. They show both acidic and basic behavior.
• Aluminium Oxide (Al₂O₃) – It is a classic example of an amphoteric oxide. It reacts with:
• Acids (like HCl) to form aluminium salts
• Bases (like NaOH) to form sodium aluminate
• Chemical Reactions:
• With acid:
  

Al₂O₃ + 6HCl → 2AlCl₃ + 3H₂O

• With base:
  

Al₂O₃ + 2NaOH + 3H₂O → 2Na[Al(OH)₄]

• Other Amphoteric Oxides – Besides aluminium oxide, oxides like zinc oxide (ZnO) and lead(II) oxide (PbO) also show amphoteric behavior.
• Why Not Others:
• Copper Oxide is basic.
• Sodium Oxide is strongly basic, reacting only with acids.
• Practical Use – Amphoteric oxides like Al₂O₃ are used in catalysis, ceramics, and as abrasives due to their unique chemical behavior.

The correct answer is Cyanides.

Key Points

• Cyanides are one of the few carbon-containing compounds not classified as organic.
• They contain the cyano group (-CN) where carbon is triple-bonded to nitrogen.
• Cyanides can exist in various forms such as hydrogen cyanide (HCN) and metal cyanides like sodium cyanide (NaCN).
• These compounds are typically highly toxic and are used in various industrial processes.
• Cyanides are considered inorganic due to their simple molecular structure and the presence of the cyano group.

Additional Information

• Organic vs. Inorganic Compounds
• Organic compounds generally contain carbon-hydrogen (C-H) bonds.
• Inorganic compounds typically do not contain C-H bonds, although there are exceptions like cyanides.
• Uses of Cyanides
• Cyanides are used in gold mining, electroplating, and as precursors to many chemical compounds.
• Despite their toxicity, they are essential in certain industrial processes.
• Toxicity of Cyanides
• Exposure to cyanides can be fatal as they inhibit cellular respiration.
• Protective measures and proper handling are crucial when working with cyanides.
• Hydrogen Cyanide (HCN)
• HCN is a colorless, extremely poisonous liquid that boils slightly above room temperature at 26 °C (79 °F).
• It has a faint, bitter, almond-like odor that some people are unable to detect due to a genetic trait.

The correct answer is C12H22O11.

Key Points

• Chemical Formula – The molecular formula of sucrose is C₁₂H₂₂O₁₁, which means it contains 12 carbon, 22 hydrogen, and 11 oxygen atoms.
• Disaccharide Sugar – Sucrose is a disaccharide, formed by the combination of glucose and fructose through a glycosidic bond.
• Common Table Sugar – It is the sugar most commonly used in households, often referred to as table sugar or cane sugar.
• Natural Sources – Sucrose is naturally found in sugarcane, sugar beet, and various fruits.
• Not a Reducing Sugar – Unlike glucose or fructose, sucrose is non-reducing because its aldehyde and ketone groups are involved in the bond between the two monosaccharides.
• Solubility and Use – Sucrose is highly soluble in water and widely used in food, beverages, and pharmaceuticals.

The correct answer is Green plants.

Key Points

• Autotrophic nutrition is a mode of nutrition in which organisms produce their own food from simple inorganic substances like carbon dioxide and water.
• Green plants are the primary examples of organisms that perform autotrophic nutrition through the process of photosynthesis.
• During photosynthesis, green plants use sunlight, water, and carbon dioxide to produce glucose and oxygen.
• This process occurs in the chloroplasts of plant cells, which contain the pigment chlorophyll that captures light energy.
• Photosynthesis is essential for the survival of plants and also provides oxygen and food for other organisms in the ecosystem.

Additional Information

• Photosynthesis:
• A biochemical process in which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose.
• The general equation for photosynthesis is: 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂.
• Photosynthesis consists of two main stages: the light-dependent reactions and the Calvin cycle (light-independent reactions).
• Chlorophyll:
• A green pigment found in the chloroplasts of plants, algae, and cyanobacteria.
• It plays a crucial role in absorbing light energy for photosynthesis.
• Autotrophs:
• Organisms that are capable of synthesizing their own food from inorganic substances using light or chemical energy.
• They are classified into photoautotrophs (e.g., green plants) and chemoautotrophs (e.g., certain bacteria).
• Nutrients:
• Essential substances that organisms need for growth, reproduction, and maintenance of health.
• In plants, nutrients include macronutrients like nitrogen, phosphorus, and potassium, and micronutrients like iron, manganese, and zinc.

The correct answer is 2) 2Cu + O2 → 2CuO.

Key Points

• When copper powder is heated in the presence of oxygen, it reacts to form copper(II) oxide, which appears as a black coating on the copper.

• The chemical reaction can be represented by the equation: 2Cu+O2→2CuO2Cu+O2→2CuO2Cu+O2→2CuO

  .

• This reaction is an example of a combination reaction where two reactants combine to form a single product.

• The black substance formed is copper(II) oxide (CuO), which is a common compound of copper in its +2 oxidation state.

Additional Information

• Oxidation: Oxidation is a chemical process in which a substance gains oxygen or loses electrons and hydrogen. In the given reaction, copper is oxidized to copper(II) oxide.

• Combination Reaction: This type of reaction involves two or more substances combining to form a single compound. The reaction 2Cu+O2→2CuO2Cu+O2→2CuO2Cu+O2→2CuO

  is a classic example of a combination reaction.

• Copper(II) Oxide (CuO): Copper(II) oxide is a black solid that is used in various applications, including as a pigment, in batteries, and in the production of copper salts.

• Properties of Copper: Copper is a reddish-brown metal known for its high electrical and thermal conductivity. It is widely used in electrical wiring, plumbing, and the production of various alloys.

• Reactivity of Metals: The reactivity of metals like copper can vary. Copper reacts slowly with oxygen at room temperature but reacts more readily when heated to form copper(II) oxide.

The correct answer is Australia.

Key Points

• The Green Army was an Australian government initiative aimed at addressing environmental issues through direct action by young Australians aged 17 to 24.
• It was launched by the Australian government in 2014 as part of their environmental conservation efforts.
• The program focused on practical environmental activities such as conservation projects, restoring and protecting the environment, and enhancing Australia's natural resources.
• The Green Army provided participants with skills and experience in environmental management, leading to improved job prospects in the environmental sector.
• It was part of Australia's broader strategy to address climate change and biodiversity conservation.

Additional Information

• Environmental Protection Initiatives:
• Several countries have launched initiatives to combat environmental degradation and climate change, such as the Clean India Mission in India and the Green New Deal in the United States.
• These initiatives aim to promote sustainability, reduce carbon emissions, and conserve natural resources.
• Climate Change Mitigation:
• Climate change mitigation refers to efforts to reduce or prevent the emission of greenhouse gases.
• Key strategies include transitioning to renewable energy, enhancing energy efficiency, and protecting forests.
• Conservation Projects:
• Conservation projects focus on preserving and restoring natural habitats and biodiversity.
• Examples include reforestation, wetland restoration, and wildlife conservation.
• Sustainable Development Goals (SDGs):
• The United Nations' SDGs include specific targets for environmental sustainability, such as clean water and sanitation, affordable and clean energy, and life on land and below water.
• Countries worldwide are working towards achieving these goals by 2030.

The correct answer is Apical meristem.

Key Points

• Apical meristem is responsible for the active division of cells and is present at the tips of roots and shoots.
• It is located in the apical and axillary buds of plants.
• Apical meristem facilitates the longitudinal growth of the plant, contributing to the increase in length.
• Behind the root cap, the apical meristem comprises actively dividing cells essential for primary growth.
• Most cells produced by the apical meristem are added to the elongation region, enhancing growth in length.

Additional Information

• Vacuoles
• Vacuoles are storage sacs within cells for solid or liquid contents, including food reserves.
• Cambium
• The cambium promotes the growth of secondary xylem and phloem and is situated between primary xylem and phloem.
• Intercalary meristem
• Located near the nodes in some plants, the intercalary meristem aids in the growth of leaves and internodes.
• Meristematic Tissue
• Meristematic tissues are regions in plants where cells are continuously dividing, contributing to growth.

The correct answer is 14.

Key Points

• Molecular Formula – The chemical formula of hexane is C₆H₁₄, meaning it has 6 carbon atoms and 14 hydrogen atoms.
• Alkane Family – Hexane belongs to the alkane series, which follows the general formula CₙH₂ₙ₊₂.
  

For hexane:

C=6C=6 C = 6

C=6, so

H=2×6+2=14H=2×6+2=14 H = 2×6 + 2 = 14

H=2×6+2=14

• Straight-Chain Hydrocarbon – It is a saturated hydrocarbon (contains only single bonds) with a straight-chain or branched structure.
• Uses – Commonly used as a non-polar solvent in laboratories and industries, and also found in gasoline.
• Isomers – Hexane has several structural isomers (like 2-methylpentane, 3-methylpentane, etc.), but all have the same molecular formula C₆H₁₄.
• Physical Properties – It is a colorless, volatile liquid with a relatively low boiling point and is insoluble in water.

The correct answer is Synapse.

Key Points

• Synapse: Synapses, also called neuronal junctions, refer to the points of contact between neurons where information is passed from one neuron to the next.
• It is the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector).
• A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.
• The end portions of the axon have swollen ends like "bulbs" which store chemicals called neurotransmitters.
• This junction of two neurons is called a synapse and the space at the synapse separating the two neurons is called the synaptic cleft.

Additional Information

• Neurons: Cells within the nervous system, called neurons, communicate with each other in unique ways.
• The neuron is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells.
• Neuroglia: Also known as glial cells, these are non-neuronal cells in the nervous system that provide support and protection for neurons.
• Axon: A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.
• Dendrites: Branch-like structures of neurons that receive messages from other neurons and allow the transmission of electrical signals to the cell body.

The correct answer is lichens.

Key Points

• Lichens are composite organisms formed from a symbiotic relationship between fungi and algae or cyanobacteria.
• They are known to be highly sensitive to air pollution, particularly sulphur dioxide, making them effective bioindicators of air quality.
• Lichens can absorb pollutants directly from the air through their thallus, which is the vegetative body of the lichen.
• The presence or absence of certain lichen species can give scientists important clues about the levels of air pollution in a particular area.
• Due to their sensitivity, lichens are often used in studies to monitor environmental changes and pollution levels.

Additional Information

• Bioindicators
• Bioindicators are species or groups of species whose function, population, or status can reveal the qualitative status of the environment.
• They are used to monitor the health of the environment, including air and water quality, and can indicate the presence of pollutants.
• Sulphur Dioxide (SO₂)
• Sulphur dioxide is a toxic gas that is released from the burning of fossil fuels and industrial processes.
• It can cause respiratory problems and contribute to the formation of acid rain.
• Symbiosis
• Symbiosis is an interaction between two different organisms living in close physical association, typically to the advantage of both.
• Lichens are a classic example of symbiosis between fungi and algae or cyanobacteria.
• Thallus
• The thallus is the vegetative body of a lichen, which is often used for the absorption of water and nutrients.
• The thallus structure can vary greatly between different lichen species.

The correct answer is Dobson units.

Key Points

• Ozone thickness is measured in Dobson units (DU), which represent the amount of ozone in a column of the atmosphere.
• One Dobson unit corresponds to a layer of ozone 0.01 millimeters thick at standard temperature and pressure.
• The average amount of ozone in the Earth's atmosphere is approximately 300 Dobson units.
• Dobson units are named after G.M.B. Dobson, a pioneer in ozone research, who developed the Dobson spectrophotometer.
• This measurement is crucial for monitoring the ozone layer, which protects life on Earth from harmful ultraviolet radiation.

Additional Information

• Ozone Layer:
• The ozone layer is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation.
• It contains a high concentration of ozone (O3) molecules, which are formed through the interaction of ultraviolet light with molecular oxygen (O2).
• The ozone layer is located about 10 to 30 kilometers above Earth's surface.
• It plays a critical role in protecting living organisms by preventing harmful UV radiation from reaching the Earth's surface.
• Ozone Depletion:
• Ozone depletion refers to the thinning and reduction of the ozone layer.
• It is primarily caused by human-made chemicals such as chlorofluorocarbons (CFCs), halons, and other ozone-depleting substances (ODS).
• The most significant ozone depletion occurs over Antarctica, leading to the formation of the "ozone hole."
• International agreements like the Montreal Protocol aim to phase out the production and use of ozone-depleting substances.
• Ultraviolet (UV) Radiation:
• UV radiation is a form of electromagnetic radiation that comes from the Sun and artificial sources like tanning beds.
• It is divided into three types based on wavelength: UVA, UVB, and UVC.
• UVA has the longest wavelength and is the least harmful, while UVC has the shortest wavelength and is the most dangerous but is mostly absorbed by the ozone layer.
• Prolonged exposure to UV radiation can lead to skin cancer, cataracts, and other health issues.
• Dobson Spectrophotometer:
• The Dobson spectrophotometer is an instrument used to measure the concentration of ozone in the atmosphere.
• It was developed by G.M.B. Dobson in the 1920s.
• The device measures the intensity of sunlight at different wavelengths to determine the amount of ozone present.
• It has been instrumental in monitoring ozone levels and studying ozone depletion over the years.

The correct answer is 1) 20 Hz to 20,000 Hz.

Key Points

• The hearing range of a healthy human ear is from 20 Hz to 20,000 Hz, also known as the audible range.
• Frequencies below 20 Hz are termed as infrasonic, and those above 20,000 Hz are termed as ultrasonic.
• Sounds within the range of 20 Hz to 20,000 Hz are detectable by the average human ear.
• Infrasonic sounds are typically produced by large-scale natural events like earthquakes and volcanic eruptions.
• Ultrasonic sounds are used in various applications like medical imaging and are detectable by certain animals like bats and dolphins.

Additional Information

• Frequency:
• Frequency is defined as the number of sound wave cycles per second.
• The unit of frequency is Hertz (Hz).
• Infrasonic:
• Infrasonic sounds have frequencies below 20 Hz.
• These sounds are generally not audible to the human ear.
• Ultrasonic:
• Ultrasonic sounds have frequencies above 20,000 Hz.
• These sounds are often used in medical and industrial applications.
• Applications of Ultrasonic Sound:
• Ultrasonic waves are used in medical imaging techniques like ultrasound.
• They are also used in cleaning delicate objects and in industrial nondestructive testing.

The correct answer is Fermentation.

Key Points

• Fermentation is the process by which molecules such as glucose are broken down anaerobically.
• By the process of fermentation, sugars are converted into acid and alcohol.
• Enzymes like pyruvic acid decarboxylase and alcohol dehydrogenase catalyze these reactions.
• It occurs typically in yeast cells, bacteria, and in the muscles of animals.
• Fermentation results in a net gain of only two molecules of ATP for each molecule of glucose degraded to pyruvic acid.

Additional Information

• Contamination
• Refers to the presence of unwanted or harmful substances in a material or environment.
• It doesn't specifically relate to bacterial decomposition or biological processes.
• For example, if a water sample contains pollutants or impurities, it is considered contaminated.
• Fertilization
• The process by which male and female gametes (sperm and egg) fuse to form a zygote.
• Essential for sexual reproduction in biology.
• It doesn't directly involve bacterial decomposition or anaerobic conditions.
• Composting
• A natural process where organic materials decompose into nutrient-rich soil.
• Occurs under aerobic (with oxygen) conditions.
• Beneficial microorganisms, including bacteria, break down the organic matter into compost.

The correct answer is NO2.

Key Points

• Nitrogen dioxide (NO2) is a reddish-brown gas with a characteristic pungent odor.
• It is primarily produced from combustion processes, such as vehicle engines and power plants.
• NO2 is a significant air pollutant that contributes to the formation of ground-level ozone and particulate matter, which are harmful to human health.
• When NO2 reacts with water vapor in the atmosphere, it forms nitric acid (HNO3), which is a component of acid rain.

Additional Information

• Acid Rain:
• Acid rain is caused by the deposition of acidic components, such as sulfuric acid (H2SO4) and nitric acid (HNO3), in precipitation.
• It results from the emission of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere, which react with water and oxygen.
• Acid rain can have harmful effects on plants, aquatic life, infrastructure, and human health.
• Sources of NO2:
• Major sources include motor vehicle emissions, power generation, industrial processes, and residential heating.
• Natural sources include lightning and microbial activity in soils.
• Health Impacts of NO2:
• Short-term exposure to high levels of NO2 can cause respiratory issues, such as coughing and shortness of breath.
• Long-term exposure can decrease lung function and increase the risk of respiratory infections and asthma.
• Environmental Impacts of NO2:
• NO2 contributes to the formation of ground-level ozone, which is a key component of smog.
• It also plays a role in the formation of fine particulate matter (PM2.5), which can penetrate deep into the lungs and bloodstream.

The correct answer is Ctrl + J.

Key Points

• Ctrl + J is the keyboard shortcut used to justify text in many word processing applications, such as Microsoft Word.
• Justify alignment means that the text is evenly distributed so that each line starts and ends at the same point, creating a clean, professional look.
• This shortcut is commonly used to improve the readability and aesthetics of a document, especially in formal writing.
• Using keyboard shortcuts like Ctrl + J can significantly speed up formatting tasks, enhancing productivity.
• Other text alignment shortcuts include Ctrl + L for left alignment, Ctrl + E for center alignment, and Ctrl + R for right alignment.

Additional Information

• Using justified text can sometimes create large gaps between words, especially in narrow columns. This is known as "rivers" of white space and can make text harder to read.
• To minimize these gaps, it's essential to use hyphenation and adjust the spacing settings in your word processor.
• Justified text is commonly used in newspapers, magazines, and books to create a neat and organized appearance.
• In web design, justified text is less common because web pages need to be responsive and adapt to different screen sizes, which can disrupt the uniformity of justified text.

The correct answer is Transitions.

Key Points

• Transitions in PowerPoint are used to add visual effects when moving from one slide to the next.
• They enhance the presentation by providing a dynamic and engaging way to display slides.
• Transitions can be customized with different effects, speeds, and directions to fit the presentation's theme.
• Examples of transition effects include Fade, Wipe, and Fly In.
• To apply a transition, you select the slide, go to the "Transitions" tab, and choose the desired effect.

Additional Information

• Transitions are different from animations, which are used to add effects to individual elements within a slide.
• Proper use of transitions can help maintain the audience's attention and make the presentation more cohesive.
• Overusing transitions can be distracting, so it's important to use them sparingly and purposefully.
• In PowerPoint, you can preview transitions to see how they will appear during the presentation.

The correct answer is POP.

Key Points

• POP stands for Post Office Protocol, which is an application layer protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection.
• POP is designed to allow users to download their emails from the mail server to their local computer.
• Once the emails are downloaded, they can be read, managed, and responded to offline.
• The most common version of POP in use today is POP3 (Post Office Protocol version 3).
• POP3 typically uses port 110 for non-encrypted communication and port 995 for encrypted communication using SSL/TLS.
• Unlike IMAP (Internet Message Access Protocol), POP3 does not keep emails on the server once they are downloaded to the client.

Additional Information

• POP3 is a simple protocol and is widely supported by most e-mail clients and servers.
• Due to its simplicity, POP3 is easier to configure and troubleshoot compared to IMAP.
• POP3 is suitable for users who primarily access their email from a single device.
• However, if you need to access your email from multiple devices, IMAP might be a better option as it allows for email synchronization across devices.

The correct answer is Dynamic variable.

Key Points

• A dynamic variable is a type of variable whose value can change during the execution of a program.
• Dynamic variables are typically allocated in the heap memory and can be modified at runtime.
• Unlike immutable variables that cannot be changed once created, dynamic variables can have different values at different times during the program's execution.
• Dynamic variables are essential in scenarios where the data size is not known beforehand or can change over time.
• Examples of dynamic variables include objects, arrays, and data structures that can grow or shrink during execution.

Additional Information

• Dynamic variables are managed using pointers and dynamic memory allocation functions such as malloc, calloc, and free in languages like C.
• In higher-level programming languages like Python or Java, the runtime environment manages dynamic memory allocation for dynamic variables.
• Proper management of dynamic variables is crucial to prevent memory leaks and ensure efficient memory usage.
• Dynamic variables are often used in data structures such as linked lists, trees, and graphs.

The correct answer is Microphone.

Key Points

A microphone is a device that converts sound into an electrical signal.

• When sound waves reach the microphone, its diaphragm vibrates in response to the pressure variations.
• These vibrations are converted into an analogous electrical signal, which represents the original sound waves.
• Microphones are used in various applications, including telephones, hearing aids, public address systems, and audio recording.
• Common types of microphones include dynamic microphones, condenser microphones, and ribbon microphones.
• Microphones are essential in audio technology, enabling sound recording and amplification.

Additional Information

• Microphones can be categorized based on their directional characteristics: omnidirectional, bidirectional, and unidirectional (cardioid, supercardioid, and hypercardioid).
• In professional audio recording, condenser microphones are often preferred for their sensitivity and accuracy in capturing sound.
• Dynamic microphones are robust and can handle high sound pressure levels, making them suitable for live sound applications.
• The first practical microphone was invented by Emile Berliner in 1877.

The correct answer is Not Case Sensitive.

Key Points

• HTML tags are not case sensitive, which means that tags can be written in uppercase, lowercase, or a mix of both.
• For example,
• This is designed to make HTML easier to write and more forgiving for beginners.
• However, it is a common practice to write tags in lowercase to maintain consistency and readability.
• HTML5 specifications recommend using lowercase tags, but browsers will still process uppercase tags correctly.

Additional Information

• HTML attributes are also not case sensitive, so attributes like "HREF" and "href" are treated the same.
• However, the values assigned to attributes can be case sensitive depending on the context (e.g., URLs).
• It is recommended to use lowercase for element names and attribute names to adhere to modern web development best practices.
• The case insensitivity of HTML tags originates from SGML (Standard Generalized Markup Language), which is the standard on which HTML is based.

The correct answer is Logical.

Key Points

• A Data Flow Diagram (DFD) is a graphical representation of the flow of data through an information system.
• DFDs are used to visualize how data is processed by a system in terms of inputs and outputs.
• The main components of a DFD are processes, data stores, data flows, and external entities.
• DFDs can be used to represent both the logical and physical aspects of a system.
• However, the basic component of a DFD is typically associated with the logical view of the system.
• This means that a DFD focuses on the logical flow of information within the system, without getting into the specifics of how the system is physically implemented.

Additional Information

• DFDs are commonly used during the analysis phase of system development.
• They help in understanding how the current system operates and how it can be improved.
• DFDs are also helpful in communicating the functional requirements of a system to stakeholders and developers.
• There are different levels of DFDs, such as Level 0 (context diagram), Level 1, and Level 2, each providing more detail about the system.
• Creating accurate DFDs requires a good understanding of the system's processes and data flows.

The correct answer is Zero-day exploit.

Key Points

• A Zero-day exploit is a cyber-attack that occurs on the same day a vulnerability is discovered in software, before a patch or solution is implemented.
• The term "zero-day" refers to the fact that the developers have "zero days" to fix the problem and protect users before the attack happens.
• These attacks are highly dangerous because they exploit vulnerabilities that are not yet known to the software vendor or the users.
• Hackers can use zero-day exploits to gain unauthorized access to systems, steal data, or cause other forms of damage.
• Organizations and individuals are often unprepared for zero-day attacks, making them particularly effective.
• Zero-day exploits can be discovered through various means, including sophisticated hacking techniques or accidental discovery.

Additional Information

• To mitigate the risk of zero-day exploits, it is essential to implement robust security practices, such as regular software updates, network monitoring, and using advanced threat detection tools.
• Organizations can also participate in bug bounty programs to encourage ethical hackers to report vulnerabilities before they can be exploited.
• Zero-day vulnerabilities are often sold on the black market to malicious actors who seek to exploit them for personal or financial gain.
• Security researchers and software vendors work tirelessly to identify and patch zero-day vulnerabilities to protect users and systems.

The correct answer is Postorder and Preorder.

Key Points

• Postorder and Preorder traversals are not sufficient to build a unique binary tree.
• To uniquely construct a binary tree, you generally need the Inorder traversal paired with either Preorder or Postorder traversal.
• Inorder traversal provides information about the relative positioning of nodes, which is crucial in tree reconstruction.
• Without Inorder traversal, multiple binary trees can yield the same Postorder and Preorder traversals, making it impossible to determine a unique structure.

Additional Information

• Inorder traversal is essential because it provides the relative positions of nodes in the tree, which cannot be derived from Preorder and Postorder traversals alone.
• Preorder traversal lists nodes in the order of root, left subtree, and right subtree.
• Postorder traversal lists nodes in the order of left subtree, right subtree, and root.
• Example:
• Consider a tree with nodes arranged such that multiple structures yield the same Preorder and Postorder traversals but differ in their Inorder traversal.
• Without Inorder traversal, these different structures cannot be distinguished.

The correct answer is Ctrl + N.

Key Points

• Ctrl + N is the shortcut key to create a new document in MS PowerPoint.
• When you press Ctrl + N, PowerPoint opens a new blank presentation for you to start working on.
• This shortcut helps you quickly start a new project without navigating through the menu options.
• Keyboard shortcuts like Ctrl + N enhance productivity by saving time.

Additional Information

• Ctrl + M is used to insert a new slide in the current presentation.
• Ctrl + V is used to paste copied content into a slide.
• Ctrl + X is used to cut selected content and move it to the clipboard.
• Knowing various keyboard shortcuts can significantly enhance your efficiency while using MS PowerPoint.

The correct answer is 3.

Key Points

• Transport Layer Security (TLS) provides three key layers of protection:
• Encryption: This ensures that the data being transferred between the client and server is unreadable to any third party who might intercept it. It uses symmetric encryption to secure the communication.
• Integrity: This ensures that the data is not altered during transit. It uses message authentication codes (MACs) to provide this feature, ensuring that any change in the data can be detected.
• Authentication: This confirms the identities of the communicating parties. Typically, this involves the use of certificates issued by trusted certificate authorities (CAs) to authenticate the server, and optionally the client.

Additional Information

• These layers work together to provide a secure communication channel over the internet, protecting data from eavesdropping, tampering, and forgery.
• TLS is widely used in securing web applications, email, instant messaging, and other internet-based communications.
• The protocol has undergone several versions, with TLS 1.3 being the latest and most secure version as of now.
• HTTPS (HTTP Secure) is the implementation of HTTP over TLS, ensuring secure communication between web browsers and servers.

The correct answer is Disk.

Key Points

• In MS-DOS, the letter 'D' stands for Disk.
• MS-DOS, short for Microsoft Disk Operating System, was an operating system for x86-based personal computers mostly developed by Microsoft.
• MS-DOS primarily used disks as the main storage medium, which included floppy disks and hard disks.
• The term 'Disk' in MS-DOS refers to the disk drives used for storing and retrieving data.
• MS-DOS commands often involved operations on these disks, such as formatting, copying files, and managing directories.
• Examples of such commands include "FORMAT D:" to format a disk drive and "COPY A: D:" to copy files from one disk to another.

Additional Information

• MS-DOS was widely used in the 1980s and early 1990s before the advent of more advanced operating systems like Windows.
• MS-DOS was a command-line operating system, meaning users interacted with it by typing text commands.
• Many early PC games and software applications were designed to run on MS-DOS.
• Although MS-DOS is largely obsolete today, it played a crucial role in the history of personal computing and laid the foundation for modern operating systems.

The correct answer is Review tab -> Protect sheet.

Key Points

• To protect a sheet in M.S Excel, you need to use the Review tab where the Protect Sheet option is available.
• Here are the steps to protect a sheet by password:
• Open the Excel workbook that contains the sheet you want to protect.
• Go to the Review tab on the Ribbon.
• Click on the Protect Sheet option.
• In the Protect Sheet dialog box, enter a password if you want to prevent others from unprotecting the sheet.
• Choose the elements you want to allow users to interact with while the sheet is protected.
• Click OK to apply the protection.
• This process helps in securing the data in the sheet from unauthorized modifications.

Additional Information

• The Review tab also includes other security features such as Protect Workbook and Allow Users to Edit Ranges.
• Protecting a sheet does not encrypt the data; it only prevents accidental or unauthorized changes.
• You can also unprotect the sheet by going back to the Review tab and clicking Unprotect Sheet, then entering the password if one was set.
• Excel provides various ways to secure data, including password protection for opening the workbook and encrypting the workbook.

The correct answer is Sasser.

Key Points

• Sasser is a computer worm that targeted machines running Windows XP and Windows 2000 operating systems.
• It was first discovered in April 2004 and spread rapidly across the internet.
• Sasser exploited a buffer overflow vulnerability in the Local Security Authority Subsystem Service (LSASS).
• The worm caused infected machines to reboot repeatedly and interfered with normal operations, leading to significant disruptions.
• Unlike many other worms, Sasser did not require user intervention to spread; it propagated automatically by scanning random IP addresses for vulnerable systems.

Additional Information

• The Sasser worm was created by a German computer science student named Sven Jaschan, who was later arrested and convicted for his actions.
• Microsoft released a patch to fix the LSASS vulnerability, but many systems were infected before the patch could be applied.
• The Sasser worm highlighted the importance of regular system updates and prompt application of security patches.
• Organizations were urged to enhance their cybersecurity measures to prevent similar attacks in the future.

The correct answer is Data Link Layer.

Key Points

• The Data Link Layer is the second layer in the OSI model and is responsible for node-to-node data transfer, error detection and correction, and flow control.
• One of the key responsibilities of the Data Link Layer is token management, which is crucial in network topologies like Token Ring.
• In Token Ring networks, a token circulates around the network; devices must capture the token to send data, ensuring that only one device transmits at a time to avoid collisions.
• The Data Link Layer also handles MAC addressing, ensuring that data frames are delivered to the correct hardware addresses.
• This layer is subdivided into two sublayers: the Logical Link Control (LLC) sublayer and the Media Access Control (MAC) sublayer.

Additional Information

• The Network Layer (Layer 3) is responsible for logical addressing and routing, but not token management.
• The Presentation Layer (Layer 6) deals with data translation, encryption, and compression, and is not involved in token management.
• The Transport Layer (Layer 4) ensures end-to-end communication and error recovery but does not manage tokens.
• Token management is critical for maintaining organized data flow in specific network environments, making the Data Link Layer indispensable in such scenarios.

The correct answer is Dreamweaver.

Key Points

• Dreamweaver is a web development tool rather than a desktop publishing software.
• Dreamweaver is used for designing, coding, and managing websites and web applications.
• It provides a visual interface along with a code editor for HTML, CSS, JavaScript, and other web technologies.
• Dreamweaver includes features like live preview, syntax highlighting, and code completion.
• It supports various web standards and frameworks, making it a versatile tool for web development.

Additional Information

• Dreamweaver integrates with other Adobe tools, enhancing its capabilities for web design and development.
• It offers features like version control, FTP client, and compatibility with multiple browsers.
• Dreamweaver is suitable for both beginners and experienced developers due to its user-friendly interface and advanced features.
• It supports responsive design, allowing developers to create websites that work well on various devices and screen sizes.

The correct answer is Hash the message without any key digitally sign the hash, and then sent it to the recipient along with the message.

Key Points

• To ensure the integrity of electronic communication, it is essential to verify that the message has not been tampered with during transmission.
• Hashing the message without any key generates a unique hash value, also known as a message digest, that represents the content of the message.
• Digitally signing the hash involves encrypting the hash value using the sender's private key. This creates a digital signature that can be verified by the recipient using the sender's public key.
• The recipient can then hash the received message and compare it with the decrypted hash value from the digital signature. If they match, it confirms that the message has not been altered.
• This process ensures that any unauthorized modifications to the message can be detected, thereby maintaining the integrity of the communication.

Additional Information

• Hash functions are designed to be one-way functions, meaning it is computationally infeasible to reverse the hash value to obtain the original message.
• Common hashing algorithms include SHA-256, SHA-3, and MD5, though MD5 is no longer considered secure for cryptographic purposes.
• Digital signatures not only verify integrity but also authenticate the identity of the sender, providing non-repudiation.
• Public Key Infrastructure (PKI) is commonly used to manage digital certificates and public-private key pairs for secure communication.

The correct answer is <a>.

Key Points

• The <a> tag in HTML is used to define hyperlinks, which allow users to navigate between web pages.

• It stands for "anchor" and is written as <a href="URL">Link Text</a>.

• The href attribute specifies the destination URL of the link.

• Links can point to other websites, files, email addresses, or sections within the same page.

• Without the <a> tag, clickable links would not exist in HTML.

Additional Information The <a> tag can also be used with other attributes like target="_blank" to open links in a new tab.

• HTML5 introduced new link types, such as rel="nofollow" for SEO purposes.
• Other tags like <p> (paragraph), <hl> (invalid), and <link> (for external resources) do not create clickable hyperlinks.
• The <a> tag is a fundamental element in web development, enabling navigation and interconnectivity across the internet.

This makes <a> the correct answer for defining HTML links.

The correct answer is 10000.

Key Points

• In Gmail, the maximum limit for messages that can be automatically forwarded to another account is 10000 per day.
• This limit helps prevent spam and ensures that Gmail's infrastructure remains efficient and reliable.
• If you exceed this limit, Gmail will stop forwarding messages until the limit resets the next day.
• Automatic forwarding can be set up in Gmail settings under the "Forwarding and POP/IMAP" tab.
• This feature is useful for users who want to consolidate their emails from multiple accounts into one primary account.
• It is important to be aware of this limit to avoid interruptions in email forwarding.

Additional Information

• If you need to forward more than 10000 messages per day, consider using other email management tools or services that can handle higher volumes.
• Be mindful of Gmail's usage policies to avoid temporary suspension or other restrictions.
• Regularly check your forwarding settings to ensure they are configured correctly and that you are not missing important emails.
• For businesses, using Google Workspace can offer more flexibility and additional features for managing large volumes of email.

The correct answer is Option 4.

Key Points

• In PDF, all images are defined in image space.
• The transformation from image space to user space is provided by a matrix called the image matrix.
• The transformation from image space to user space can be changed, contrary to what option 2 suggests.
• All images are not necessarily one unit by one unit in user space, contrary to what option 1 suggests.

Additional Information

• PDFs use a coordinate system where the origin is at the bottom-left corner of the page.
• The image matrix allows for scaling, rotating, and translating images within the PDF.
• Understanding the image matrix is crucial for precise placement and manipulation of images in PDF documents.
• PDFs maintain a consistent method for handling images across different viewers and platforms.

When the paper is unfolded:

Hence, the correct answer is "Option (1)".

Given:

A man leaves from his office for his home.

He walks towards East.

After moving a distance of 20 m, he turns South and walks 10 m.

Then he walks 35 m towards the west and further 5 m towards the north.

He then turns towards east and walks 15 m.

So, the man is 5 Km far from his initial and final position'.

Hence, the correct answer is "Option (2)".

We will draw a table consisting of three rows and 27 columns;

Row 1 represents all the alphabets before rearranging

Row 2 represents all the alphabets are written in reverse order after interchanging alphabets from 'D to L' with those form to Z' respectively.

Row 3 represents the arrangement of alphabets of 2nd row in reverse order

The letter 'N' midway between W and E in the new order.

Hence, the correct answer is "Option (2)".

nature, ensure, tense, spent, spurn, upturn

Here the letter ‘n’ moves one step forward in the next word of the series.

Hence, the answer is "upturn".

The logic followed here is:

A child puts book on bag and bag called class.

Hence, the correct answer is "class".

The logic follows here:

1st number product of digits ÷ 2 = 2nd number.

Given:

129 : 9

⇒ (1 × 2 × 9) ÷ 2 = 18 ÷ 2 = 9 = 2nd number. 

Similarly,

382 : ?

⇒ (3 × 8 × 2) ÷ 2 = 48 ÷ 2 = 24 = 2nd number. 

Hence, the correct answer is "Option (3)".

The logic is shown below:

Hence, IQS will be the next term in the series.

Here alphabets are changed according to their reverse values for example-

Positional value of T is 20 and reverse of T is G (As reverse value of G = 27 - 7 = 20)

So, the pattern followed here is,

Similarly,

So, the code for LTM will be NGO.

Hence, the correct answer is "Option (3)".

The logic follows here:

Sum of uper side number = Sum of lower side number.

Given:

⇒ 24 + 18 = 42 = 30 + 12

And,

⇒ 20 + 16 = 36 = 24 + 12

Similarly, In option (3):

⇒ 20 + 25 = 45 = 30 + 15

Hence, the correct answer is "Option (3)".

The logic followed here is:

Position of P from the left = 14^th

Position of Q from the right = 7^th

There are 4 boys between P and Q.

So, Position of Q from the left = Position of P from the left + 4 (boys between P and Q) + 1 (Q itself)

= 14 + 4 + 1

= 19^th

Now, the total number of boys in the row = Position of Q from the left + Position of Q from the right - 1

= 19 + 7 - 1

= 25

Hence, the correct answer is "Option 3".

The pattern followed here is:

1) 

2) 

3) 

4) 

Hence, the correct answer is "CGKQ".

The logic follows here:

Sum of 1st and 3rd letter position value = Coded number.

Given:

PMU : 37

⇒ P(16) + U(21) = 16 + 21 = 37

Similarly,

QVS : ?

⇒ Q(17) + S(19) = 17 + 19 = 36

Hence, the correct answer is "Option (3)".

BODMAS Rule:

Decoding the given information:

Given Equation: 12 P 2 Q 14 S 7 = ?

Now replacing the sign from left to right using BODMAS Rule, we get:

⇒ 12 × 2 + 14 ÷ 7

⇒ 24 + 2

⇒ 26

Hence, the correct option is "Option 2".

The correct mirror image of the given figure is:

Hence, the correct answer is "Option 4".

The logic follows here:

⇒ 1 ÷ 1st number = 2nd number.

In 0.5 : 2

⇒ 1 ÷ 0.5 = 2

Similarly,

⇒ 1 ÷ 0.125 = 8

Hence, the correct answer is "Option (3)".

The logic followed here is:

Hence, "Option 4" is the correct answer.

Given:

Shahrukh starts driving from point A and drives 12 km towards north.

He takes a right turn and drive 20 km.

He now drives 8 km after taking a left turn.

Finally he takes a left turn; and drives 20 km and stops at point B.

Thus, Shahrukh should move in the west direction before stopping at point B.

Hence, "Option 2" is the correct answer.

The figure which will look like the paper when unfolded is shown below:

Thus, option Figure 4 will look like the paper when unfolded.

Hence, "Option 3" is the correct answer.

The logic followed here is:

Y2 : 4

Similarly,

V2 : ?

Hence, "Option 2" is the correct answer.

The logic followed here is:

Hence, "Option 1" is the correct answer.

The least possible Venn diagram is shown below:

Conclusions:

1. Some glasses are not bowl → False (Some bowls are plates, and no plate is a glass implies that those part of bowls which are plates can never be glass).

2.All glasses being bowl is a possibility → True (Some bowls are plates, and no plate is a glass implies that no statement restricts all glasses being bowls, therefore it is possible.)

Thus, only conclusion II follows.

Hence, the correct answer is "Option 3".

Decoding signs:

Given: 55 Θ 5 ∂ 55 β 5 α 55 =?

55 Θ 5 ∂ 55 β 5 α 55 =? ⇒ 55 × 5 ÷ 55 - 5 + 55 =?

⇒ 55 × 5 ÷ 55 - 5 + 55 =?

⇒ 55 × 0.09 - 5 + 55 =?

⇒ 5 + 55 - 5 =?

⇒ 60 - 5 =?

⇒ 55 = ?

Hence, "Option 2" is the correct answer.

The folding the paper cutting along the lines to make a cubical box is shown below:

⇒ As the alternate positions become opposite to each other, the remaining two faces become opposite to each other.

So, opposite pairs are:

(a + b) → Q²

B² → C²

O → D²

So, each checking option one by one:

Option 1)

⇒ Can be made because all are opposite sides.

Option 2) 

⇒ Can be made because all are opposite sides.

Option 3) 

⇒ Can be made because all are opposite sides.

Option 4) 

⇒ Cannot be made because 'B2' is adjacent to 'C2'.

Hence, "Option 4" is the correct answer.

Given:

Height of tower = 50 m.

The angle of elevation on the ground level on opposite sides are 30° and 60°.

Calculation:

Let OT be the tower.

⇒ OT = 50 m

Let A and B be the two points on the ground on the opposite sides of OT.

⇒ Then, ∠TAO = 30°, ∠TBO = 60°

⇒ Distance between AB = AO + OB = x + y

Now, in a right-angled triangle ATO,

⇒ tan30° = OT/AO = 50/x

⇒ x = 50√3 m = 86.60 m

In right angled triangle BTO,

⇒ tan60°  = OT/OB = 50/y

⇒ y = 50/√3 = 28.86 m

∴ Required distance = x + y = 28.86 + 86.60 = 115.47 m

The correct answer is option 2 i.e.115.47 m

Concept Used:

Probability = number of favourable outcomes / total number of outcomes

Calculation:

First, let's determine the number of tickets that are multiples of 3 or 5.

Multiples of 3 between 1 and 25 are: 3, 6, 9, 12, 15, 18, 21, 24. That's a total of 8.

Multiples of 5 between 1 and 25 are: 5, 10, 15, 20, 25. That's a total of 5.

So, total we have 8 + 5 = 13.

But notice we counted the number 15 twice because it's a multiple of both 3 and 5. So we should not double count that.

So the correct total is 13 - 1 = 12.

The probability of drawing a number which is a multiple of 3 or 5 :

⇒ $\dfrac{12}{25}$

The correct answer is option 3

Given:

The number first increased by 22%.

then same increased by 18%. 

The number, so obtained, is now decreased by 30% 

Calculation:

Let the number be 100x 

The number first increased by 22%.

⇒ $100x \times \dfrac{122}{100}$ = 122x 

Now the same increased by 18%.

⇒ $122x \times \dfrac{118}{100}$ = 143.96x 

Now decreased by 30%.

⇒ $143.96x \times \dfrac{70}{100}$ = 100.77x

Net increase or decrease percent in the original number.

⇒ 100.77x - 100x = .77x  $\simeq$ 1 % increase.

The correct answer is 1% increase

Given series: _ A _ _ C _ B _ _ A _ B

Option 1) CBBBBCB → C A B B C B B B C A B B → (It doesn't follow any pattern)

Option 2) CBBABCB → C A B B C A B B C A B B → (It follows the pattern of: CABB - CABB - CABB)

Option 3) CBABABC → C A B A C B B A B A C B → (It doesn't follow any pattern)

Option 4) CABACBB → C A A B C A B C B A B B → (It doesn't follow any pattern)

Hence, "Option 2" is the correct answer.

Calculation:

Political Turnover of President Reagan:

⇒ 17 + 40 + 13 + 8 = 78%

Political Turnover of President H.W Bush:

⇒ 7 +18 +32 +9  = 66%

Political Turnover of President Clinton :

⇒ 11 + 27 + 20 + 16 = 74%

Political Turnover of President W Bush:

⇒ 6 + 27 + 25 +15  = 73%

Political Turnover of President Obama:

⇒ 9 + 15 + 43 + 4 = 71%

From above We can say Reagan's President the political turnover was maximum.

∴The correct answer is option 4 i.e. Reagan