An area comprising not less than ________ metres around hospitals, educational institutions and courts may be declared as silence area/zone
A person can make a complainant to the competent authority if the noise levels exceeds the ambient noise levels by
Acceptable noise level for residential and business urban areas as per IS 4854 – 1968 is
Acceptable noise level for residential and business urban areas as per IS 4854 – 1968 is Read More »
A source emitting 80 dB and another emitting 60 dB if put in the same location will produce a noise of
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?
In a sinusoidal wave of the sound pressure, the number of times a peak amplitude arrives in one second is called as
The threshold of hearing for normal healthy ear is
The threshold of hearing for normal healthy ear is Read More »
Human beings are most sensitive to sound oscillations with frequencies between
Human beings are most sensitive to sound oscillations with frequencies between Read More »
The following statement is true between Period (P) and frequency (f) of a sound wave?
The following statement is true between Period (P) and frequency (f) of a sound wave? Read More »
What will be the resultant decibel level when two sources make noise of equal decibels?
What will be the resultant decibel level when two sources make noise of equal decibels? Read More »
