PYQ Browser
4392 Previous Year Questions • 2016–2026 • Prelims, Mains, Essay, Optionals
All Exams
Year
Prelims - Paper 1 (GS)
20 shown2023•Prelims•Paper 1 (GS)•Q.53
Consider the following statements :
1
Carbon fibres are used in the manufacture of components used in automobiles and aircrafts.
2
Carbon fibres once used cannot be recycled.
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.54
Consider the following actions :
1
Detection of car crash/collision which results in the deployment of airbags almost instantaneously
2
Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive
3
Detection of the tilt of the smartphone which results in the rotation of display between portrait and landscape mode
In how many of the above actions is the function of accelerometer required?
Science and Technology (IT/Computers)
2023•Prelims•Paper 1 (GS)•Q.55
With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements :
1
Biofilters provide waste treatment by removing uneaten fish feed.
2
Biofilters convert ammonia present in fish waste to nitrate.
3
Biofilters increase phosphorus as nutrient for fish in water.
Environmental Pollution and Degradation
2023•Prelims•Paper 1 (GS)•Q.56
Consider the following pairs : Objects in space : Description
1
Cepheids : Giant clouds of dust and gas in space
2
Nebulae : Stars which brighten and dim periodically
3
Pulsars : Neutron stars that are formed when massive stars run out of fuel and collapse
General Science
2023•Prelims•Paper 1 (GS)•Q.57
Which one of the following countries has its own Satellite Navigation System?
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.58
Consider the following statements :
1
Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight.
2
Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.59
Consider the following statements regarding mercury pollution :
1
Gold mining activity is a source of mercury pollution in the world.
2
Coal-based thermal power plants cause mercury pollution.
3
There is no known safe level of exposure to mercury.
Environmental Ecology
2023•Prelims•Paper 1 (GS)•Q.60
With reference to green hydrogen, consider the following statements :
1
It can be used directly as a fuel for internal combustion.
2
It can be blended with natural gas and used as fuel for heat or power generation.
3
It can be used in the hydrogen fuel cell to run vehicles.
Infrastructure - Energy
2023•Prelims•Paper 1 (GS)•Q.61
Consider the following countries :
1
Bulgaria
2
Czech Republic
3
Hungary
4
Latvia
5
Lithuania
6
Romania
Geography
2023•Prelims•Paper 1 (GS)•Q.62
With reference to the Earth's atmosphere,
which one of the following statements is correct?
Geography
2023•Prelims•Paper 1 (GS)•Q.63
Consider the following statements :
Statement-I
The soil in tropical rain forests is rich in nutrients.
Statement-II
The high temperature and moisture of tropical rain forests cause dead organic matter in the soil to decompose quickly.
Which one of the following is correct in respect of the above statements?
Geography
2023•Prelims•Paper 1 (GS)•Q.64
Consider the following statements :
Statement-I
The temperature contrast between continents and oceans is greater during summer than in winter.
Statement-II
The specific heat of water is more than that of land surface.
Which one of the following is correct in respect of the above statements?
Geography
2023•Prelims•Paper 1 (GS)•Q.65
Consider the following statements :
1
In a seismograph, P waves are recorded earlier than S waves.
2
In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation.
Geography
2023•Prelims•Paper 1 (GS)•Q.66
With reference to coal-based thermal power plants in India, consider the following statements :
1
None of them uses seawater.
2
None of them is set up in water-stressed district.
3
None of them is privately owned.
Infrastructure
2023•Prelims•Paper 1 (GS)•Q.67
'Wolbachia method' is sometimes talked about with reference to which one of the following?
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.68
Consider the following activities :
1
Spreading finely ground basalt rock on farmlands extensively
2
Increasing the alkalinity of oceans by adding lime
3
Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters
Environment
2023•Prelims•Paper 1 (GS)•Q.69
'Aerial metagenomics' best refers to which one of the following situations?
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.70
'Microsatellite DNA' is used in the case of which one of the following?
Science and Technology
2023•Prelims•Paper 1 (GS)•Q.71
Consider the following statements with reference to India :
1
According to the 'Micro, Small and Medium Enterprises Development (MSMED) Act, 2006', the 'medium enterprises' are those with investments in plant and machinery between ₹ 15 crore and ₹ 25 crore.
2
All bank loans to the Micro, Small and Medium Enterprises qualify under the priority sector.
Economy
2023•Prelims•Paper 1 (GS)•Q.72
With reference to Central Bank digital currencies, consider the following statements :
1
It is possible to make payments in a digital currency without using US dollar or SWIFT system.
2
A digital currency can be distributed with a condition programmed into it such as a time-frame for spending it.
Science and Technology