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Topic Propulsion
Asked 2 times across 2 UPSC exams over 8 years (2008–2016), peaking in 2008.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 2008
- Recurs across 2 years (2008–2016)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2008 → EPFO 2016
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
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.
EPFO2016
ISRO in August 2016 successfully test launched Supersonic Combustion Ramjet (Scramjet) Engine. Which of the following statements with regard to Scramjet Engine is/are correct?
- It can efficiently operate both in subsonic and supersonic combustor modes
- India is the first country to demonstrate the flight testing of a Scramjet Engine
Select the correct answer using the code given below.
- A 1 only ✓
- B 2 only
- C Both 1 and 2
- D Neither 1 nor 2
✓ Correct answer: (A)
Science & Technology › Space Tech
CSE2008
Consider the following statements in respect of a jet engine and a rocket: (2008)
- A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space
- A rocket carries its own supply of oxygen in the gas form, and fuel
Which of the statements given above is/are correct?
- A 1 only
- B 2 only
- C Both 1 and 2 ✓
- D Neither 1 nor 2
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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