Combination system consist of supply system and ______ system.

It is quite evident that the incoming air for ventilation should be ____ in summer and ____ in winter before it enters t…

Calculate the transmission loss given the sound levels measured on either side of the wall is 60 dB and 40 dB.

In _________ system, some mechanical arrangement is adopted to provide enough ventilation to the room.

Which of the following is not an acoustical defect?

Proper shape of the hall can help in preventing the formation of echoes.

_______________ defect is due to the lack of reflecting surfaces near the source of sound and excessive absorption of so…

_______________ defect is due to poor sound insulation.