HVAC Level 2 03302 Compressors Questions
with Correct Answers
Burnout
A condition in which the breakdown of the motor winding insulation causes the windings to
electrically short to ground.
Capacity control
The manipulation of compressor or system operation to change the refrigeration capacity.
Clearance volume
The amount of clearance between a piston at the top dead-center position of travel and the
cylinder head.
Compliant scroll compressor
A version of the scroll compressor that allows the orbiting scroll to temporarily shift from its
normal operating position to accommodate liquid refrigerant that enters the compressor.
Compression
The reduction in volume of a vapor by mechanical means.
Compression ratio
For refrigerant compressors, a ratio that compares the discharge pressure to the suction
pressure during operation. Note that compression ratio has a different meaning when applied
to internal combustion engines.
Floodback
with Correct Answers
Burnout
A condition in which the breakdown of the motor winding insulation causes the windings to
electrically short to ground.
Capacity control
The manipulation of compressor or system operation to change the refrigeration capacity.
Clearance volume
The amount of clearance between a piston at the top dead-center position of travel and the
cylinder head.
Compliant scroll compressor
A version of the scroll compressor that allows the orbiting scroll to temporarily shift from its
normal operating position to accommodate liquid refrigerant that enters the compressor.
Compression
The reduction in volume of a vapor by mechanical means.
Compression ratio
For refrigerant compressors, a ratio that compares the discharge pressure to the suction
pressure during operation. Note that compression ratio has a different meaning when applied
to internal combustion engines.
Floodback
