Search Previous Year Questions

The correct answer is International Monetary Fund.

Key Points

• Gita Gopinath a Prominent Indian-American economist has joined as the chief economist of the International Monetary Fund, becoming the first woman to occupy the top post at the global lender.
• She became the 11^th  chief economist of the International Monetary Fund.
• She is on leave of public service from the economics department of Harvard University where she is the John Zwaanstra Professor of International Studies and Economics.
• Gita Gopinath is also a co-director of the International Finance and Macroeconomics program at the National Bureau of Economic Research and has worked as the Economic Adviser to the Chief Minister of Kerala state.

Additional Information

• IMF headquarters is in Washington D.C. The present Managing Director is Kristalina Georgieva.
• The World Bank headquarter is in Washington D.C. The Present President is Mr David Malpass.
• The Asia Infrastructure Investment Bank headquarter is in Beijing. The Present President is Mr Jin Liquin.
• The Asia Development Bank headquarter is in Manila. The Present President is Mr Masatsugu Asakawa.

The correct answer is Bhaskaracharya.

Key Points

• Lilavati was written by Bhaskaracharya. He was an Indian mathematician who treatise on mathematics subjects, written in the year 1150.
• It is the first volume of his main work, the Siddhanta Shiromani, alongside the Bijaganita, the Grahaganita, and the Goladhyaya.
• The book Lilavati contains thirteen chapters, mainly definitions, arithmetical terms, interest computation, arithmetical and geometrical progressions, plane geometry, solid geometry, the shadow of the gnomon, the Kuṭṭaka - a method to solve indeterminate equations, and combinations.
• Bhaskara II gives the value of pi as 22/7 in the book but suggests a more accurate ratio of 3927/1250 for use in astronomical calculations.
• Also according to the book, the largest number is the parardha equal to one hundred thousand billion.

The correct answer is Nuclear Fusion.

Key Points

• Nuclear fusion is the process where the nuclei of two light atoms combine to form a  new nucleus.
• Nuclear Fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between reactant and products is manifested as either the release of the absorption of energy. This difference in mass arises due to the difference in atomic binding energy between the nuclei before and after the reaction.
• Fusion is the process that powers active or main sequence stars and other high-magnitude stars, where large amounts of energy are released.
• The fusion process that produces nuclei lighter than iron-56 or nickel=62 will generally release energy. These elements have a relatively small mass per nucleon and large binding energy per nucleon.
• A fusion of nuclei lighter than these releases energy (exothermic process) while the fusion of heavier nuclei results in energy retained by the product nucleons and the resulting reaction is endothermic.

Image of the working process of the Nuclear Fusion:

Additional Information

• The nucleus of a heavy atom (such as uranium, plutonium, or thorium), when bombarded with low-energy neutrons, can be split apart into lighter nuclei. This process is called nuclear fission.

• Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atoms—also known as fission products.

• A chain reaction refers to a process in which neutrons released in fission reaction produces an additional fission reaction in at least one further nucleus. This nucleus, in turn, produces neutrons, and the process repeats.

• During this reaction, a tremendous amount of energy is released.

Important Points

• Fission reaction can further be classified into controlled and uncontrolled fission reaction.
• In controlled fission, the chain reaction is controlled and only a controlled amount of reaction is allowed, nuclear reactors in nuclear power plants are one of the examples of the controlled fission reaction.
• And for an uncontrolled fission chain reaction, and it is allowed to happen unless fission material is over, the atomic bomb is one of the examples of an uncontrolled fission reaction.

The correct answer is Fungi.

Key Points

• Athlete's foot is caused by the same type of fungus that causes ringworm and jock itch. This can be caused by Damp socks and shoes and warm, humid conditions favor the organisms' growth.
• It occurs when the tinea fungus grows on the feet. We can catch the fungus through direct contact with an infected person, or by touching surfaces contaminated with the fungus.
• The fungus thrives in warm, moist environments. They normally live on the skin, hair, and nails called dermatophytes. When the environment they live in gets warm and moist, they grow out of control and start to cause symptoms.

Important Points

• Fungi are unicellular or multicellular thick-cell-walled heterotroph decomposers that eat decaying matter and form tangles of fibers.
• They use complex organic compounds as a source of energy and carbon, not photosynthesis.
• They are found in almost any habitat, but live mostly on land, primarily on soil or plant material rather than in sea or freshwater.
• A small number of fungi cause diseases in animals.
• Mycology is a branch of biology that studies fungi.

The correct answer is 344 m/sec.

Key Points

• The speed of sound is the distance traveled per unit of time by a sound wave as it propagates through an elastic medium.
• At 20 °C (68 °F), the speed of sound in air is about 344 meters per second.
• It depends strongly on temperature as well as the medium through which a sound wave is propagating.
• The speed of sound in an ideal gas depends only on its composition and temperature. The speed has a weak dependence on pressure and frequency in ordinary air, deviating slightly from ideal behavior.

The correct answer is Newton's Law.

Key Points

• Newton's Third Law of Motion states that 'To every action, there is an equal and opposite reaction'.
• When the rocket is ignited, it releases gases from its thrusters thereby creating a force that will push the rocket upwards which provides a necessary force that helps it in moving ahead.
• Newton's Second Law of motion states that the rate of change of momentum of an object is proportional to the applied force in the direction of the force. i.e. F=ma. Where F is the force applied, m is the mass of the body, and a is the acceleration produced.
• A fielder pulling his hand back while catching a ball is an application of Newton's second law of motion.
• Newton's First law states that Every object remains in uniform motion in a straight line unless compelled to change its state by the action of an external force.
• When a bus starts suddenly, the passengers receive a backward jerk an application of Newton's first law of motion.

The correct answer is Silicon.

Key Points

• Commercial fertilizer means a fertilizer or other substance containing one or more essential available plant nutrients that is distributed for its plant nutrient content and is designed for use and has value in promoting plant growth.
• The Fertilizers typically provide nutrients , in varying proportions they are:
• (i) six macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S); and (ii) eight micronutrients: boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn) and nickel (Ni).

Additional Information

• Silicon is a chemical element with the symbol Si and atomic number 14.
• It is a crystalline solid, hard, and brittle with a blue-grey metallic lustre, and is a tetravalent metalloid and semiconductor.
• Silicon is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, and lead are below it

The correct answer is Diamond.

Key Points

• Among the following options, Diamond has the highest density.
• It has density, ranging from 3150 to 3530 kilograms per cubic metre.
• The density, of a substance, is its mass per unit volume.
• Diamond is an allotrope of carbon.
• Diamond is the hardest and has the highest thermal conductivity and is least compressible of all known substances.
• Graphite is a naturally-occurring form of crystalline carbon and is smooth, electrically conductive and used in pencils and as grease material.

The correct answer is Footsie(FSE).

Key Points

• The FTSE 100 Index ("footsie") is the main share index of the 100 most highly capitalized UK companies listed on the Main Market.
• It follows the capitalization-weighted method. It has a market capitalization of around 2.054 trillion pounds.
• The FTSE was founded in 1801, making it one of the oldest exchanges in the world. Its current premises are situated in Paternoster Square close to St Paul's Cathedral in the City of London.
• It is part of the London Stock Exchange Group (LSEG). LSEG was created in October 2007 when the London Stock Exchange merged with Milan Stock Exchange, Borsa Italiana.

Additional Information

Given:

Rate of weaving of cloth = 0.128 m/s

Calculations:

Let the time required to loom 25 meters in x seconds

x × 0.128 m/s = 25m 

x = 25 × 1000/128

x = 125/16 × 25

x = 195.31 ≈ 195

x = 195 seconds