UPSC Prelims 2025 Science & Technology

UPSC Prelims 2025 Science & Technology PYQs — start a timed practice test with explanations. 13 questions.

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Ancient History 5 Art & Culture 2 Economy 18 Environment & Ecology 15 Geography 13 Indian Polity 14 International Relations 8 Medieval History 1 Modern History 8 Science & Technology 13 Social Issues & Schemes 3

Question 1 Medium

Consider the following statements: I. Indian Railways have prepared a National Rail Plan (NRP) to create a future ready railway system by 2028. II. 'Kavach' is an A...

Question 2 Medium

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?

Question 3 Easy

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 resp...

Question 4 Easy

Consider the following statements: Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. Statement II: ...

Question 5 Hard

With reference to India's defence, consider the following pairs: Aircraft type – Description I. Dornier-228 : Maritime patrol aircraft II. IL-76 : Supersonic combat a...

Question 6 Easy

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 ac...

Question 7 Medium

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 Service...

Question 8 Easy

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 autom...

Question 9 Medium

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 a...

Question 10 Hard

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

Question 11 Medium

With reference to monoclonal antibodies, often mentioned in news, consider the following statements: I. They are man-made proteins. II. They stimulate immunological f...

Question 12 Easy

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?