PUF can be used for operating temperature in the range of

Which one of the following is also a current type relay

The conditioned air is supplied to the conditioned space through

The ducts normally used are made of

Evaporator of a refrigerator is also known as

Which one of the following types of condenser is used in a window air conditioner?

Constant pressure expansion valve is also known as

Which one of the followings is used as a refrigerant control device in a refrigerator

Drier in a refrigeration system is used to

In an evaporative condenser which of the following is used as cooling medium