Insulation of ______ over a base concrete floor is obtained by using resilient surface material on floors.

The term ______ is used to indicate a big room or a hall where sound is picked up by a microphone and it includes the ra…

The sound insulation offered by rigid homogenous walls decreases with the increase in the thickness of the wall.

Concrete floor floating construction provides good insulation against ______ sounds.

Ventilation arising from the temperature difference between outside and inside takes place due to ________ effect.

According to International agreement, the frequency is measured in ____

The _____ are the substances which allow moisture to stay on their surfaces.

The amount of sound transmitted outside a room depends on the surface while the amount of sound reflected or absorbed de…