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203 PYQs · Asked in 16 of 16 years · Free practice

PYQs on Science & Technology

13 PYQs from 2025
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Prelims 2025

13 questions
Science & TechnologyEnergy, Nuclear and Mobility TechnologiesElectric, Hybrid, Fuel-Cell and Alternative VehiclesMedium
Question details
Type:
Statement based
Skill:
Concept understanding
Related topics:
Hydrogen Production, Storage and Fuel Cells
2025 · Q41

Prelims 2025, question 41: Electric, Hybrid, Fuel-Cell and Alternative Vehicles

Consider the following types of vehicles: I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?

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Science & TechnologyDefence and Strategic TechnologiesMilitary Aviation, UAVs and Aerospace PlatformsMedium
Question details
Type:
Statement based
Skill:
Careful distinction
2025 · Q42

Prelims 2025, question 42: Military Aviation, UAVs and Aerospace Platforms

With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements: I. All types of UAVs can do vertical landing. II. All types of UAVs can do automated hovering. III. All types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?

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Science & TechnologyEnergy, Nuclear and Mobility TechnologiesBatteries and Electrochemical Energy StorageMedium
Question details
Type:
Statement based
Skill:
Concept understanding
Related topics:
Electrochemistry and Energy Materials
2025 · Q43

Prelims 2025, question 43: Batteries and Electrochemical Energy Storage

In the context of electric vehicle batteries, consider the following elements: I. Cobalt II. Graphite III. Lithium IV. Nickel How many of the above usually make up battery cathodes?

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Science & TechnologyEnergy, Nuclear and Mobility TechnologiesCoal Gasification and Fossil-Fuel Conversion TechnologiesHard
Question details
Type:
Statement based
Skill:
Application
2025 · Q45

Prelims 2025, question 45: Coal Gasification and Fossil-Fuel Conversion Technologies

Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them?

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Science & TechnologyDefence and Strategic TechnologiesExplosives, Ammunition and Energetic MaterialsMedium
Question details
Type:
Single choice
Skill:
Fact recall
2025 · Q46

Prelims 2025, question 46: Explosives, Ammunition and Energetic Materials

What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

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Science & TechnologyCommunication, Electronics and Quantum TechnologyQuantum ComputingHard
Question details
Type:
Statement based
Skill:
Careful distinction
Related topics:
Artificial Intelligence, Machine Learning and Deep Learning
2025 · Q47

Prelims 2025, question 47: Quantum Computing

Consider the following statements: I. It is expected that Majorana 1 chip will enable quantum computing. II. Majorana 1 chip has been introduced by Amazon Web Services (AWS). III. Deep learning is a subset of machine learning. Which of the statements given above are correct?

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Science & TechnologyHealth, Diseases and Medical TechnologyTherapeutics, Biologics and Monoclonal AntibodiesMedium
Question details
Type:
Statement based
Skill:
Concept understanding
Related topics:
Immunity, Vaccines and Immunisation
2025 · Q48

Prelims 2025, question 48: Therapeutics, Biologics and Monoclonal Antibodies

With reference to monoclonal antibodies, often mentioned in news, consider the following statements: I. They are man-made proteins. II. They stimulate immunological function due to their ability to bind to specific antigens. III. They are used in treating viral infections like that of Nipah virus. Which of the statements given above are correct?

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Science & TechnologyBiology and Human PhysiologyMicrobiology and VirologyMedium
Question details
Type:
Statement based
Skill:
Careful distinction
2025 · Q49

Prelims 2025, question 49: Microbiology and Virology

Consider the following statements: I. No virus can survive in ocean waters. II. No virus can infect bacteria. III. No virus can change the cellular transcriptional activity in host cells. Which of the statements given above are correct?

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Science & TechnologyChemistry and Materials ScienceCritical Minerals, Rare Earths and Functional MaterialsMedium
Question details
Type:
Statement relationship
Skill:
Concept understanding
2025 · Q81

Prelims 2025, question 81: Critical Minerals, Rare Earths and Functional Materials

Consider the following statements: Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. Statement II: Some rare earth elements have phosphorescent properties. Which one of the following is correct in respect of the above statements?

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Science & TechnologySpace Science and Space ProgrammesIndian Space Missions and ProgrammesMedium
Question details
Type:
Statement based
Skill:
Concept understanding
Related topics:
Human Spaceflight and Microgravity Research
2025 · Q83

Prelims 2025, question 83: Indian Space Missions and Programmes

Consider the following space missions: I. Axiom-4 II. SpaDeX III. Gaganyaan How many of the space missions given above encourage and support micro-gravity research?

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Science & TechnologyDefence and Strategic TechnologiesMilitary Aviation, UAVs and Aerospace PlatformsMedium
Question details
Type:
Pairs
Skill:
Fact recall
2025 · Q84

Prelims 2025, question 84: Military Aviation, UAVs and Aerospace Platforms

With reference to India's defence, consider the following pairs: Aircraft type – Description I. Dornier-228 : Maritime patrol aircraft II. IL-76 : Supersonic combat aircraft III. C-17 Globemaster III : Military transport aircraft How many of the pairs given above are correctly matched?

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Science & TechnologyPhysics and Applied PhysicsAtmospheric Physics and Weather ModificationEasy
Question details
Type:
Single choice
Skill:
Fact recall
2025 · Q85

Prelims 2025, question 85: Atmospheric Physics and Weather Modification

Artificial way of causing rainfall to reduce air pollution makes use of

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Science & TechnologySpace Science and Space ProgrammesSatellite Navigation, Positioning and AugmentationMedium
Question details
Type:
Statement based
Skill:
Concept understanding
2025 · Q94

Prelims 2025, question 94: Satellite Navigation, Positioning and Augmentation

GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in respect of GAGAN? I. It is designed to provide additional accuracy and integrity. II. It will allow more uniform and high quality air traffic management. III. It will provide benefits only in aviation but not in other modes of transportation. Select the correct answer using the code given below.

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