Screw compressors have almost nonlinear capacity control mechanism:

Centrifugal compressors are constant speed machines:

A ________ maintains the refrigerant liquid level and pressure difference necessary for the refrigerant condensing action:

Discharge Bypass Valves (DBV) responds to the change in downstream or suction pressure:

The filter drier is located in the _______ at the outlet of the condenser:

One MBH is equivalent to ______ BTU’s per hour

_______ Heat that can be measured or felt

A condition in which a quantity of liquid enters the compressor causing hammering and possible compressor damage.

Induction motor always operated with ______ power factor:

Purging refers to the release of air or noncondensable gases from the system:

A _______ uses a piston moving inside a cylinder to compress the refrigerant:

A energy-efficient room air conditioner will have an Energy Efficient Ratio (EER) rating of _____ or higher:

Fan pressures will vary directly as the _______ of the rpm ratio:

Smoke chamber should be constructed so that slopes at ______ angle from the smoke shaft to the flue opening:

Fireman switch is the device that allows the circulator pump to continue operating upto ______ minutes after the heater has shut-off:

In boiler safety valves can be used to vent:

Heat pumps operating cost is much _____ compared to electrical heating: