Worksheets10. ACR-104 UNIT 23 REVIEW QUESTIONS
Total questions: 9
Worksheet time: 5mins
Two things in the design of a reciprocating compressor that directly affect its efficiency are:
Lubrication method and suction line size
Suction and discharge line size
Valve design and clearance volume
Clearance volume and IPR setting
What would be considered a higher-than-normal temperature for a discharge gas line on a reciprocating compressor?
190°F
215°F
250°F
All of the above
Which compressor type uses pistons to compress the gas?
Scroll
Reciprocating
Rotary
Screw
Which compressor type uses tapered, machined gear components to trap the gas for compression?
Scroll
Reciprocating
Rotary
Screw
Which style of compressor uses belts to turn the compressor?
Open drive
Closed drive
Chassis drive
Hermetic drive
What would be done to increase the compressor speed on a belt-driven compressor?
Decrease drive pulley size
Increase drive pulley size
Increase driven pulley size
Both A and C
At what speeds in rpm does a hermetic compressor normally turn?
1750
3450
4500
Both A and B
What lubricates the refrigeration compressor?
Refrigerant
Moisture
Desiccants
Oil
A compressor can compress a liquid.
True
False
