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Question 191

Kolkata Police SI 2021• Test

Which industry is known as 'Sunrise Industry'?

  1. AOption (a)

    Transport Industry

  2. BOption (b)

    Petrochemical Industry

  3. COption (c)

    Construction Industry

  4. DOption (d)

    Computer Industry

View answer & explanation

Correct answer

Answer: (d)D.

Computer Industry

Why this answer is correct

The correct answer is Computer Industry.

Key Points

  • A blossoming enterprise or business in its infancy stage exhibiting promise of a rapid boom is referred to as a "sunrise industry".
  • High growth rates, a large number of start-ups, and an abundance of venture capital funding are often characteristics of sunrise industries.
  • As investors' interest in their potential for long-term growth grows and the general public becomes more aware of them, these industries create a lot of "buzz."
  • ​The alternative energy sector between 2003 and 2007 as well as the social media, Computer Industry, and cloud computing sectors in 2011 and 2012 are examples of sunrise industries.

Additional Information

  • An industry may move from the dawning stage to the maturity stage, and then to the sunset stage, as it matures.
  • Sunrise industries must demonstrate their viability and sustainability if they are to remain relevant and continue to grow.
  • A sunrise industry is frequently distinguished by a high level of innovation, and its quick ascent may threaten to push a rival industry sector that is already in decline into obsolescence.
  • The rival industry sector is known as a sunset industry due to its bleak long-term prospects.
  • Sunrise industries still need to demonstrate that their markets are enduring and viable notwithstanding the initial attention they receive.
  • The first buzz they create may be more based on conjecture about the potential the sector holds than actual commercial action.

Question 192

Kolkata Police SI 2021• Test

At what rate of compound interest per annum, the amount of Rs. 10,000 for 2 years is Rs. 12,100?

  1. AOption (a)

    5%

  2. BOption (b)

    10%

  3. COption (c)

    11%

  4. DOption (d)

    20%

View answer & explanation

Correct answer

Answer: (b)B.

10%

Why this answer is correct

Given:

Principal = 10000

Time = 2 years

Total amount = 12100

Concept used:

Compound interest = P ( 1 + R /100 )t

Explanation:

12100 = 10000 ( 1 + R / 100 )2

121 / 100 = ( 1 + R / 100 )2

√(121 / 100) = √( 1 + R / 100 )2

11 / 10 = 1 + R / 100

R / 100 = 11/ 10 – 1

R / 100 = 1 / 10

R = 10 %

∴The rate of interest on a given problem is 10%

Question 193

Kolkata Police SI 2021• Test

Who is the highest Law Officer in any state of India?

  1. AOption (a)

    Solicitor General

  2. BOption (b)

    Advocate General

  3. COption (c)

    Secretary General, Law Department

  4. DOption (d)

    Attorney General

View answer & explanation

Correct answer

Answer: (b)B.

Advocate General

Why this answer is correct

The correct answer is Advocate General.

Key Points

  • The highest legal official in the state is the Advocate General of the State.
  • The position of Advocate General for the States is one that is established by Article 165 of the Indian Constitution.
  • Additionally, he communicates with India's Attorney General.
  • The Advocate General of the State is appointed by the Governor of the State.
  • Governor selects him from among candidates who meet the requirements to be appointed as judge of the High Court.
  • A person must be an Indian citizen and have held a judicial post in Indian territory for at least ten years in order to be eligible for appointment as a judge of a High Court.
  • Otherwise, he has served as an advocate for a High Court or two or more such Courts in succession for at least ten years.

Important Points

  • The Advocate General of a State has the power to speak in and otherwise participate in the proceedings in the Legislative Assembly and Legislative Council, as per Article 177 of the Indian Constitution.
  • The Advocate General holds a public office and serves as the State's top law enforcement official.
  • The Department's Head and top legal adviser to the government is the Advocate General.
  • The Additional Advocate General is a group of law officers, to handle the litigation work, the High Court Government Pleaders, the State Public Prosecutors, the Additional State Public Prosecutors, the Additional Government Advocates, and the Government Advocates have all been appointed.
  • The Advocate General directs and oversees the activities of the Law Officers, including the Assistant Advocate General. All executive and financial powers have been given to the Advocate General.

Question 194

Kolkata Police SI 2021• Test

Which temperature in Celsius scale represents Absolute Zero Temperature?

  1. AOption (a)

    −237.15°C

  2. BOption (b)

    −273.15°C

  3. COption (c)

    −373.15°C

  4. DOption (d)

    0°C

View answer & explanation

Correct answer

Answer: (b)B.

−273.15°C

Why this answer is correct

The correct answer is −237.15°C.

CONCEPT:

Absolute zero temperature:

  • The lowest temperature at which there is no heat energy remaining in the body is called the absolute zero temperature of that body.
  • Degree Celsius and Kelvin are the standard units of temperature.
  • The relation between Degrees Celsius and kelvin is given by:

K = C + 273.15 ℃

CALCULATION:

Absolute temperature, K = 0 kelvin

⇒ K = C + 273.15 ℃

⇒ C = 0 – 273.15 = -273.15℃

⇒ C = - 273.15℃

Question 195

Kolkata Police SI 2021• Test

How many triangles are there in the given figure?

  1. AOption (a)

    14

  2. BOption (b)

    10

  3. COption (c)

    16

  4. DOption (d)

    12

View answer & explanation

Correct answer

Answer: (b)B.

10

Why this answer is correct

The number of triangles in given figure is as shown below :

∴ Here, the number of triangles in given figure is '10'.

Hence, the correct answer is "10".

Question 196

Kolkata Police SI 2021• Test

Recently in which state of India, 300 years old Sati Stone was unearthed?

  1. AOption (a)

    Haryana

  2. BOption (b)

    Madhya Pradesh

  3. COption (c)

    Tamil Nadu

  4. DOption (d)

    Gujarat

View answer & explanation

Correct answer

Answer: (c)C.

Tamil Nadu

Why this answer is correct

The correct answer is Tamil Nadu.

Key Points

  • A Sati stone thought to be at least 300 years old was recently discovered by construction workers in Tirupur city of Tamil Nadu.
  • It was found while digging a trench to lay an electric line.
  • The stone was discovered just a meter or so below the surface.
  • The stone is 45 cm wide and 75 cm high.
  • Which is resembling the Sati practice in the olden days.

Important Points

  • The stone shows the figures of a man and a woman.
  • The man is clutching a sword in his right hand and a revolver in his left.
  • The woman is clutching the man's hand with her left hand while raising her right hand to hold a mirror.
  • The woman is dressed neatly and has flowers fastened to her hair as well as accessories.

Additional Information

  • A widow offers herself as a sacrifice by perching herself atop her husband's funeral pyre in the Hindu tradition known as Sati or Suttee.
  • A cold form of sati, or the neglect and expulsion of Hindu widows, has been common in India since ancient times.
  • Although it is debatable whether it received a scriptural mention in early Hinduism.
  • It has been linked to related Hindu practices in the Indo-Aryan-speaking regions of India that reduced the rights of women, especially those to inherit property.

Question 197

Kolkata Police SI 2021• Test

HCF of two numbers is 32 and their LCM is 1760. What is the smaller number?

  1. AOption (a)

    152

  2. BOption (b)

    160

  3. COption (c)

    102

  4. DOption (d)

    110

View answer & explanation

Correct answer

Answer: (b)B.

160

Why this answer is correct

Given:

HCF- 32

LCM- 1760

Explanation:

LCM is always divisible by HCF

= 1760 ÷ 32

= 55

Co–factors of the obtained number are 11 and 5.

Then, multiply each co-factor with HCF.

11 × 32 = 352

5 × 32 = 160

∴The smaller number is 160.

Question 198

Kolkata Police SI 2021• Test

4 o'clock rain is prevalent in

  1. AOption (a)

    Yenisei basin

  2. BOption (b)

    Amazon and Congo basins

  3. COption (c)

    Huang He basin

  4. DOption (d)

    Nile basin

View answer & explanation

Correct answer

Answer: (b)B.

Amazon and Congo basins

Why this answer is correct

The correct answer is Amazon and Congo basins.

Key Points

  • Lowlands on either side of the equator, the Congo Basin, the coast of the Gulf of Guinea, the Amazon basin, and coastal Kenya all have a 4 o'clock rain sort of climate.
  • The climate is marked by considerable annual rainfall of 200–250 cm and high annual temperatures of 27°C.
  • Thus, there are no distinct seasons and there is excessive humidity throughout the entire year.
  • The phrase "4 o'clock showers" refers to the daily downpour that occurs about that time.

Important Points

  • Rainfall caused by convection occurs every day.
  • The extreme heating of the land surface is what causes this kind of rainfall.
  • There is a lot of evaporation throughout the day.
  • On reaching the upper layer of the atmosphere it cools, condenses, and forms cumulonimbus clouds in the sky.
  • Afternoon cooling causes the water vapour to condense, which causes rain to fall.

Question 199

Kolkata Police SI 2021• Test

Which state has recently declared and celebrated a particular day as 'Desh Nayak Divas'?

  1. AOption (a)

    Jharkhand

  2. BOption (b)

    Bihar

  3. COption (c)

    Odisha

  4. DOption (d)

    West Bengal

View answer & explanation

Correct answer

Answer: (d)D.

West Bengal

Why this answer is correct

The correct answer is West Bengal.

Key Points

  • West Bengal will celebrate January 23 as "Desh Nayak Diwas" to commemorate Netaji Subhas Chandra Bose's birth anniversary.
  • The Central Government decided to observe Bose's birthday as "Parakram Diwas" (the day of valour).
  • The day would be marked as "Desh Nayak Diwas,"(the day of the national hero) West Bengal declared.
  • Before a large statue of the liberation hero is erected, the Prime Minister unveiled a hologram of Netaji Subhas Chandra Bose at India Gate.
  • The 125th anniversary of Netaji's birth is this year 2021.

Additional Information

  • Subhas Chandra Bose, also known as Netaji, was an Indian revolutionary.
  • He played a significant role in the campaign for India's independence from British control.
  • During World War II, he also served as the commander of an overseas Indian national force fighting the Western forces.
  • He was Mohandas K. Gandhi's contemporary.
  • He was occasionally an ally and occasionally an enemy of Gandhiji.
  • Bose was renowned for his aggressive pursuit of independence and support for socialist principles.

Question 200

Kolkata Police SI 2021• Test

If a person sells an article at a profit of 5%, he gains Rs. 15 more than if he sells it at a loss of 5%. What is the cost price of the article?

  1. AOption (a)

    Rs. 120

  2. BOption (b)

    Rs. 150

  3. COption (c)

    Rs. 125

  4. DOption (d)

    Rs. 105

View answer & explanation

Correct answer

Answer: (b)B.

Rs. 150

Why this answer is correct

Explanation:

Let's take cost price of the article- 100

If he sells with a 5% profit then the selling price will be 105

If he sells with a 5% loss then the selling price will be 95

The difference between both selling prices is 10

According to the given problem difference is 15

If 10 parts is equal to 15

100 parts = ( 15 / 10 ) ×100

= 150

∴The cost price of the article is Rs. 150.