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Topic Echolocation
Asked 2 times across 2 UPSC exams over 31 years (1992–2023), peaking in 1992.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 1992
- Recurs across 2 years (1992–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1992 → GEO 2023
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.
GEO2023
Which one of the following has the adaptation 'echolocation' to detect the prey?
- A Rattlesnake
- B Barn owl
- C Grasshopper
- D Bat ✓
✓ Correct answer: (D)
Science & Technology › Biology & Health
CSE1992
The bats are able to fly in dark since their wings produce
- A Infrared rays
- B Ultrasonic waves ✓
- C Sound waves
- D Ultraviolet rays
✓ Correct answer: (B)
Science & Technology › Biology & Health
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