An area comprising not less than ________ metres around hospitals, educational institutions and courts may be declared as silence area/zone
READ MORE +Noise Pollution MCQs
A person can make a complainant to the competent authority if the noise levels exceeds the ambient noise levels by
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Acceptable noise level for residential and business urban areas as per IS 4854 – 1968 is
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A source emitting 80 dB and another emitting 60 dB if put in the same location will produce a noise of
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An industry is having two machines each will generate 70 dB noise. If both the machine are operated simultaneously, what will be the total noise generated from the machines?
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In a sinusoidal wave of the sound pressure, the number of times a peak amplitude arrives in one second is called as
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The threshold of hearing for normal healthy ear is
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Human beings are most sensitive to sound oscillations with frequencies between
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The following statement is true between Period (P) and frequency (f) of a sound wave?
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What will be the resultant decibel level when two sources make noise of equal decibels?
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The equivalent noise level is significant for the following
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The degree of hearing loss depends on the
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