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What is the permissible noise limit of 120 db?

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in Energy Management by (679k points)
What is the permissible noise limit of 120 db?

(a) 30 minutes

(b) 2 minutes

(c) 1 minute

(d) 30 seconds

I have been asked this question in an online interview.

My doubt stems from Noise Pollution and its Effects in chapter Environmental Pollution of Energy Management

1 Answer

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Best answer
Correct option is (d) 30 seconds

Explanation: One can hear 120 db for a duration of 30 seconds. For 30 seconds the permissible noise limits is 120 db. If someone hear more than this duration there are high chances of hearing loss and other mental health issues.

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