A current starting relay is connected in the circuit in

In the sensible heating process of air the D.B.T. of the air is

Humidification of air is known as

A desert cooler is also known as

To limit the flow of heat into a refrigerator, which one of the followings is used

For summer air conditioning, which one among the following psychrometric process is used

Over load protector in a refrigerator is used as

Which one of the followings is used as refrigerant in an ice plant

Which one of the followings is not a secondary refrigerant

The insulating material used now-a-days in refrigerators is