Question

In the residential area at night, the standard limit of sound intensity is ........... decibel.

• A. $55$
• B. $70$
• C. $45$
• D. $40$

Answer 1

Answer: (C)

$45$

• The Central Pollution Control Board is the institute that is responsible for the regulation and control of the sources of pollution.
• The board has proposed the values for control of noise pollution.
• The sound intensity for the residential areas at day time is 55 dB and at night time is 45 dB.
• If these standard limits are crossed or violated, the person responsible is punished.
• Thus, the correct answer is option C.