Question

What is the permissible noise limit of 120 db

Answer 1

Answer:

I think this the answer Then a "3-dB exchange rate" formula is applied, which means that for every 3 dB above 85 dBA, the maximum exposure time is cut in half. Noise levels above 140 dB are not considered safe for any period of time, however brief. recommends no exposure above 120 dB.

Explanation:

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Answer 2

Answer:

hi friend

Explanation:

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