For a residential area, the permissible L (time weighted average of the level of sound in decibels on scale A during the night time) is
For a residential area, the permissible L (time weighted average of the level of sound in decibels on scale A during the night time) is

Q. For a residential area, the permissible L (time weighted average of the level of sound in decibels on scale A during the night time) is

A.            35

B.            45

C.            55

D.            65

Answer: 45
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