______________ is very important to control the noise pollution near an Auditorium area.

_______________ defect is due to poor sound insulation.

Relative humidity of saturated air is _______

The velocity of sound in bricks is ______

Because of high concentration of reflected sound at the Sound foci, there is a deficiency of reflected sound at some poi…

In Winter, the outside air is cool and hence, the process of air conditioning involves filtering, preheating and _______…

In a studio, the noise level should be brought down to _______

The general temperature difference between inside and outside of a room is not more than ________