_______________ defect is due to poor sound insulation.

Which of the following is not a characteristic of sound?

In the acoustical design of a hall or an auditorium, the angle between the side walls and the curtain line should not be…

In summer, it is necessary to supply _______ air inside the room before it enters the room.

In rigid homogeneous walls, the transmission loss of a one-brick wall is _____

The value of __________ depends on type of activity, geographical conditions, age of occupants, etc.

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

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