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UPSC Prelims Science and Technology PYQs (2011–2026): Topic-wise with Answers – Page 4
196 UPSC Prelims questions on Science and Technology from 2011–2026, grouped by topic with the newest year first. The most-asked topics are Information and Communication Technology (36), Biotechnology (30), Biology (25). Difficulty: 19% easy, 50% medium and 31% hard.
Chemistry 3 questions
- Triclosan Harmful ChemicalTriclosan', considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
- Chemical Change ExamplesWhich of the following is/are the example/examples of chemical change?
- UV Water PurificationWhat is the role of ultraviolet (UV) radiation in the water purification systems?
Diseases 5 questions
- Hepatitis B VirusWhich one of the following statements is not correct?
- Zika VirusConsider the following statements:
- Ebola Outbreak CountriesAmong the following, which were frequently mentioned in the news for the outbreak of Ebola virus recently?
- H1N1 Swine FluH1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases?
- Tattooing Disease TransmissionWhich of the following diseases can be transmitted from one person to another through tattooing?
Nanoscience and Nanotechnology 4 questions
- Nanoparticles in NatureConsider the following statements:
- Carbon NanotubesWith reference to carbon nanotubes, consider the following statements:
- Nanotechnology in HealthWith reference to the use of nanotechnology in health sector, which of the following statements is/are correct?
- Graphene PropertiesGraphene is frequently in news recently. What is its importance?
Nuclear Technology 4 questions
- Monazite Rare EarthsWith reference to India, consider the following statements:
- ITER Fusion ReactorIndia is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?
- Thorium Nuclear FuelTo meet its rapidly growing energy demand, some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this…
- Heavy Water ModeratorThe function of heavy water in a nuclear reactor is to