Compressors Unit 23 Compressors Quiz Test Exam Questions with All Correct Solutions
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Module
Compressors Unit 23 Compressors
Institution
Compressors Unit 23 Compressors
Compressors Unit 23 Compressors Quiz Test Exam Questions with All Correct Solutions
The suction and discharge valves in a reciprocating compressor open and close depending on the difference in pressure across them. - Answer-True
Scroll compressors are becoming popular because they can handle l...
Compressors Unit 23 Compressors Quiz
Test Exam Questions with All Correct
Solutions
The suction and discharge valves in a reciprocating compressor open and close
depending on the difference in pressure across them. - Answer-True
Scroll compressors are becoming popular because they can handle liquid flood-back
without compressor damage. - Answer-False
The scroll compressor is one type of reciprocating compressor. - Answer-False
Rotary compressors have pistons that rotate inside the cylinders. - Answer-False
Rotary compressors have no "clearance volume". - Answer-True
The sight glass on a semi-hermetic compressor is used to allow light to enter the
crankcase to keep the oil warm. - Answer-False
The hermetic reciprocating compressor motor is essentially made of the same materials
as an open type compressor motor. - Answer-False
A bolted together motor-compressor assembly is sometimes referred to as a semi-
hermetic type. - Answer-True
The higher the rpm of a compressor, the higher the pumping efficiency. - Answer-False
All but which one of these things happens as a direct result of the compressor doing its
work? - Answer-the air is adequately circulated in the conditioned space.
What is the compression ratio at these conditions?
Discharge pressure: 282.3
Evaporator pressure: 49.3
Condenser pressure: 277.3
Suction pressure: 51.3 - Answer-4.5
The piston of a reciprocating compressor must make ___ stroke(s) to complete one
cycle of refrigerant compression. - Answer-2
The reciprocating compressor has a built-in problem with inefficiency which results from:
- Answer-its clearance volume.
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