Science topic analysis
Defence, Nuclear & Aerospace PYQs for UPSC Prelims
These PYQs examine missiles, drones, naval and aerospace systems, nuclear energy and safeguards, defence platforms, and dual-use technologies. This live collection contains 17 classified questions across 8 exam years, from 2014 to 2026.
Year-by-year frequency
Counts show how many questions in this library were assigned to the category in each represented exam year. A zero is not implied for omitted years, and frequency alone is not a prediction of a future paper.
Source topic labels in this cluster
Recurrent concept labels
Representative solved questions
The sample prioritizes different years and removes repeated prompt text. Open a question to see its options, UPSC’s answer, and explanation.
UPSC 2026 · Science
The Bureau of Indian Standard (BIS) recently introduced a national standard to test and assess bomb disposal system. Which of the following statements with regard to this syst...
UPSC 2025 · Science
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...
UPSC 2024 · Science
Consider the following aircraft : 1. Rafael 2. MiG-29 3. Tejas MK-1 How many of the above are considered fifth generation fighter aircraft ?
UPSC 2023 · Science
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 i...
UPSC 2020 · Science
Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouting whales for D...
UPSC 2018 · Science
What is "Terminal High Altitude Area Defense (THAAD)", sometimes seen in the news ?
UPSC 2016 · Science
India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?
UPSC 2014 · Science
With reference to Agni-IV Missile, which of the following statements is/are correct? 1. It is a surface-to-surface missile. 2. It is fuelled by liquid propellant only. 3. It c...
UPSC 2026 · Science
Which of the following items of defence hardware is/are manufactured in India ? 1. Su-30 MKI Fighter Jets 2. T-90 MK-III Tanks 3. Akula Class Submarine Select the answer using...
UPSC 2026 · Science
Which of the following statements with regard to stealth technology is/are correct ? 1. Stealth objects have a very small radar cross-section and are coated with Radar Absorbi...
How this page is built
Topic and concept labels are AI-assisted enrichment, not official UPSC classifications. We map them into a conservative editorial taxonomy using deterministic label rules, publish a category only when it has at least 10 questions across at least three exam years, and keep ambiguous records out of topic pages. Counts update with the question bank. See the full methodology and correction policy.