Science & Technology — PYQ Questions

CSE Prelims — GS Paper I 2024

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Q67 Distributed Energy Resources: 1. Battery storage 2. Biomass generators 3. Fuel cells 4. Rooftop solar photovoltaic... A-R Q86 Sustainable Aviation Fuel feedstocks: 1. Used cooking oil 2. Petroleum refinery waste 3. Agricultural residues 4.... Statement Q88 What is the term commonly used to describe 3D virtual worlds where users can interact using avatars? A-R Q91 About radioisotope thermoelectric generators: 1. They convert nuclear energy directly to electrical energy through... A-R Q92 Statement-I: Giant stars are hotter and brighter than dwarf stars. Statement-II: Compared to dwarf stars, giant stars... Match Q93 Which synthesized molecule dilates blood vessels and is used in treatment of heart disease? A-R Q94 Applications of radar: 1. Measuring speed of approaching vehicle 2. Tracking weather patterns 3. Detecting composition... Factual Q95 About genome sequencing: 1. It helps in understanding genetic makeup of organisms. 2. It can be used to detect genetic... Statement Q96 About dark matter: 1. It does not emit or absorb light. 2. It interacts with ordinary matter through gravity. 3. It... A-R Q99 About Chandrayaan-3: 1. It made India the first country to land on the south pole of the Moon. 2. The mission included... A-R Q100 About AI (Artificial Intelligence): 1. Machine learning is a subset of AI. 2. Deep learning is a subset of machine... Statement

CSE Prelims — GS Paper I 2023

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Q11 Consider the following statements: Statement-I: India, despite having uranium deposits, depends on coal for most of its... A-R Q18 Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling... How Many Q53 Consider the following statements: 1. Carbon fibres are used in the manufacture of components of automobiles and... Statement Q54 Consider the following: 1. Detect the impact of a car crash and trigger the release of airbags. 2. Detect a free fall of... How Many Q55 Consider the following statements in the context of biofilters used in aquaculture: 1. Biofilters remove uneaten fish... How Many Q56 Consider the following pairs: Space Objects — Description 1. Cepheids — Giant clouds of dust and gas in space 2. Nebulae... Match Q57 Which one of the following countries has its own satellite navigation system? Factual Q66 With reference to Wolbachia method, it is used in the context of Factual Q68 The term Aerial Metagenomics is best described as Factual Q69 Microsatellite DNA ( STR ) is used in the context of Factual

CSE Prelims — GS Paper I 2022

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CSE Prelims — GS Paper I 2021

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Q45 Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental pollutants from which... Statement Q75 With reference to recent developments regarding Recombinant Vector Vaccines, consider the following statements: 1.... Statement Q76 In the context of hereditary diseases, consider the following statements: 1. Passing on mitochondrial diseases from... Statement Q77 Bollgard I and Bollgard II technologies are mentioned in the context of Factual Q78 In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following? 1. Area of... Statement Q79 Consider the following: 1. Bacteria 2. Fungi 3. Virus Which of the above can be cultured in an artificial/synthetic... Statement Q80 Consider the following statements: 1. Adenoviruses have single-stranded DNA genomes whereas retroviruses have... Statement Q91 Water can dissolve more substances than any other liquid because Factual Q92 With reference to street-lighting, how do sodium lamps differ from LED lamps? 1. Sodium lamps produce light in 360... Statement Q93 The term ACE2 is talked about in the context of Factual Q94 Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds... Factual Q95 Triclosan, considered harmful when exposed to high levels for a long time, is most likely present in which of the... Factual Q96 Which one of the following is a reason why astronomical distances are measured in light-years? Factual

CSE Prelims — GS Paper I 2020

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Q37 In the context of recent advances in human reproductive technology, Pronuclear Transfer is used for Factual Q38 With the present state of development, Artificial Intelligence can effectively do which of the following? 1. Bring down... Statement Q39 With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? 1. VLC... Statement Q40 With reference to Blockchain Technology, consider the following statements: 1. It is a public ledger that everyone can... Statement Q41 With reference to carbon nanotubes, consider the following statements: 1. They can be used as carriers of drugs and... Statement Q42 Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active... Statement Q43 The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has... Factual Q44 Consider the following statements: 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a... Statement Q45 What is the importance of using Pneumococcal Conjugate Vaccines in India? 1. These vaccines are effective against... Statement Q46 In India, the term Public Key Infrastructure is used in the context of Factual Q47 Which of the following statements are correct regarding the general difference between plant and animal cells? 1. Plant... Statement Q55 In India, why are some nuclear reactors kept under IAEA Safeguards while others are not? Factual Q88 With reference to solar water pumps, consider the following statements: 1. Solar power can be used for running surface... Statement

CSE Prelims — GS Paper I 2019

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Q3 Consider the following statements about Hydrogen-enriched Compressed Natural Gas (H-CNG): 1. The main advantage of the... Statement Q12 For the measurement/estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll... Statement Q45 In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the... Factual Q46 In the context of which one of the following are the terms pyrolysis and plasma gasification mentioned? Factual Q51 Consider the following statements: 1. In Augmented Reality (AR), a simulated environment is created and the physical... Statement Q52 The word Denisovan is sometimes mentioned in media in reference to Factual Q53 With reference to the recent developments in science, which one of the following statements is not correct? Elim. Q54 Consider the following statements: A digital signature is 1. an electronic record that identifies the certifying... Statement Q55 In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices? 1. Location... Statement Q56 Consider the following statements: RNA interference (RNAi) technology has gained popularity in the last few years.... Statement Q57 Recently, scientists observed the merger of giant blackholes billions of light-years away from the Earth. What is the... Factual Q58 Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India? 1.... Statement Q59 What is Cas9 protein that is often mentioned in news? Factual Q60 Which one of the following statements is not correct? Elim. Q68 Which of the following adopted a law on data protection and privacy for its citizens known as General Data Protection... Factual Q87 Consider the following statements: According to the Indian Patents Act, 1. a biological process to create a seed can be... Statement Q95 With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution)... Statement

CSE Prelims — GS Paper I 2017

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Q10 Which of the following statements is/are correct regarding Smart India Hackathon 2017? 1. It is a centrally sponsored... Statement Q22 It is possible to produce algae based biofuels, but what is/are the likely limitation(s) of developing countries in... Statement Q31 Consider the following statements: 1. In tropical regions, Zika virus disease is transmitted by the same mosquito that... Statement Q44 The terms Event Horizon, Singularity, String Theory and Standard Model are sometimes seen in the news in the context of Factual Q45 With reference to agriculture in India, how can the technique of genome sequencing, often seen in the news, be used in... Statement Q73 Consider the following pairs: Commonly used/consumed materials — Unwanted or controversial chemicals likely to be found... Match Q74 Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of... Statement Q78 What is the application of Somatic Cell Nuclear Transfer Technology? Factual Q85 In India, it is legally mandatory for which of the following to report on cyber security incidents? 1. Service... Statement Q87 What is the purpose of evolved Laser Interferometer Space Antenna (eLISA) project? Factual

CSE Prelims — GS Paper I 2016

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Q5 With reference to LiFi, recently in the news, which of the following statements is/are correct? 1. It uses light as the... Statement Q24 Why does the Government of India promote the use of Neem-coated Urea in agriculture? Factual Q31 The term Transcriptome, sometimes seen in the news, refers to Factual Q34 Which of the following is/are mandatory information on the label of pre-packaged food items in India? 1. List of... Statement Q35 Project Loon, sometimes seen in the news, is related to Factual Q47 What is Greased Lightning-10 (GL-10), recently in the news? Factual Q59 Viruses can infect 1. Bacteria 2. Fungi 3. Plants Select the correct answer using the code given below. Statement Q66 With reference to Bitcoins, sometimes seen in the news, which of the following statements is/are correct? 1. Bitcoins... Statement Q77 Regarding DigiLocker, sometimes seen in the news, which of the following statements is/are correct? 1. It is a digital... Statement Q80 With reference to Astrosat, the astronomical observatory launched by India, which of the following statements is/are... Statement Q85 Consider the following statements: The Mangalyaan launched by ISRO 1. is also called the Mars Orbiter Mission 2. made... Statement Q94 On which of the following can you find the Bureau of Energy Efficiency Star Label? 1. Ceiling fans 2. Electric... Statement

CSE Prelims — GS Paper I 2015

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Q10 Which of the following statements is/are correct regarding National Innovation Foundation-India (NIF)? 1. NIF is an... Statement Q17 Among the following, which were frequently mentioned in the news for the outbreak of Ebola virus recently? Factual Q23 With reference to the use of nanotechnology in health sector, which of the following statements is/are correct? 1.... Statement Q30 In the context of modern scientific research, consider the following statements about IceCube, a particle detector... Statement Q32 With reference to Near Field Communication (NFC) Technology, which of the following statements is/are correct? 1. It is... Statement Q45 The term Goldilocks Zone is often seen in the news in the context of Factual Q71 In which of the following activities are Indian Remote Sensing (IRS) satellites used? 1. Assessment of crop... Statement Q73 The term IndARC, sometimes seen in the news, is the name of Factual Q92 H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases? Factual Q93 With reference to bio-toilets used by the Indian Railways, consider the following statements: 1. The decomposition of... Statement Q95 With reference to fuel cells in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the... Statement