The horsepower requirements of a centrifugal fan generally _______ with a decrease in the area of the discharge orifice if the speed remains unchanged.

In a capacitor, energy is stored in which of the following:

Suction line this pipe conducts low-pressure refrigerant vapor from the evaporator to the compressor

In a DX system, the distance and the height difference between the condensing unit and cooling coil has to be kept _______:

A low pressure steam boiler operates at a pressure lesser than _______ :

The reclaimed refrigerant must meet the standards of _______ before it can be resold:

As the number of poles in a motor increases, the speed of the motor _______:

If the surrounding air is colder than the skin temperature, the body gains heat:

Which of the following flowmeters are used to measure the flow rate of conducting liquids

For measuring the pressure in a refrigeration system which of the manifold is used:

The anemometer is used to measure _______ at the opening of the air duct:

The purpose of an accumulator is to prevent _______ damage due to slugging of refrigerant and oil:

A refrigeration system absorbs heat by absorbing the latent heat of vaporization in the evaporator

Which of the following prevents the liquid refrigerant from entering the compressor:

When the wet bulb temperature falls, the water temperature leaving from the cooling tower will _______ :