Q

Humans cannot tolerate very high sound levels. What is the highest sound level that humans cannot hear, according to the wording of the source?

RRB Ministerial & Isolated Categories (Junior Translator Hindi); RRB Group-D 11/02/2025 (Shift-III); 03/12/2018 (Shift-III) 2025; 2018
✓ Answer: B 80 dB
The source selects 80 dB, but the question is incorrectly worded: 80 dB is audible, not an upper hearing limit. A single universal safe exposure limit cannot be stated without duration and other conditions.
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