________________ are made of mats or screens of split wire or glass wool or such other material and coated with non dryi…

The width of the seats in an auditorium should be between ______

Combination system consist of supply system and ______ system.

The recommended volume for a public lecture hall is _______

The speed of sound is taken as ______

In cavity wall construction for soundproofing, the width of the cavity should be at least _____

The unit of absorption is ________

The difference of temperature between the outside air and inside air tends to the deposition of moisture in the room sur…