__________________ is an index which combines the effect of air movement, humidity and temperature.

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

Which of the following is not a property of good acoustic materials?

Where people are working, there has to be __________ to cause proper ventilation of the premises.

According to International agreement, the frequency is measured in ____

Which of the following constructions is effective against both air-borne and structure-borne sounds?

_____________ is the process by which the required amount of moisture is added in the air.

The intensity of sound depends on the ear of the listener.