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Topic Energy sources
Asked 2 times across 2 UPSC exams over 3 years (2021–2024), peaking in 2021.
Key insights
- Most tested in NDA — 1 of 2 PYQs
- Most asked in 2021
- Recurs across 2 years (2021–2024)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2021 → GEO 2024
How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2024
Which one among the following is a source of non-renewable energy ?
- A Geothermal energy
- B Nuclear energy ✓
- C Biomass
- D Hydropower
✓ Correct answer: (B)
Science & Technology › Energy & Nuclear
NDA2021
Which one of the following is not a bio-mass energy source ?
- A Wood
- B Nuclear reactor ✓
- C Gobar gas
- D Coal
✓ Correct answer: (B)
Science & Technology › Energy & Nuclear
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