An yellow burner flame is caused due to which of the following:

A tube used to convey the compressed refrigerant vapor from the compressor to the condenser inlet.

Steel pipe is joined with threaded fittings or by welding

Doubling of duct diameter will reduce friction loss by a factor of _____ times

Volume of the gas is _____ to the absolute temperature when the volume of the gas is kept at constant pressure:

A split phase motor uses a run and start capacitor

A tube used to convey the refrigerant vapor from the evaporator outlet to the inlet of compressor

A higher cfm of air is used during a cooling cycle

The amount of water vapor in the air compared with the amount it can hold at a given temperature is expressed as:

A low temperature hot water boiler furnishes water at a temperature less than _____ and a pressure less than _____ :

Air can gain heat with which of the following:

Which of the following heat is the heat that added to a substance that causes a temperature change: