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Compressors MCQ Questions And Answers - Refrigeration and Air Conditioning

Compressors MCQs : This section focuses on the "Compressors" in Refrigeration and Air Conditioning. These Multiple Choice Questions (MCQs) should be practiced to improve the Refrigeration and Air Conditioning skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

A ____________ is a mechanical device that increases the pressure of a gas by reducing its volume.

A. liquid compressor
B. compressor
C. gas compressor
D. None of the above

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Question 2

An air compressor is a specific type of gas compressor.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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Question 3

A ____________ is a reciprocating compressor with the piston being the rotor of a linear motor.

A. simple compressor
B. parallel compressor
C. linear compressor
D. All of the above

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Question 4

____________ is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor.

A. ionic liquid piston compressor
B. ionic compressor
C. ionic liquid piston pump
D. ionic liquid piston compressor, ionic compressor or ionic liquid piston pump

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Question 5

What is the purpose of using a refrigerant compressor?

A. Raise the temperature of refrigerant
B. Reduce the temperature of refrigerant
C. Reduce the pressure of refrigerant
D. Expand the refrigerant

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Question 6

Where is the reciprocating compressor mostly suitable?

A. Small displacements and low condensing pressures
B. Small displacements and high condensing pressures
C. Large displacements and low condensing pressures
D. Large displacements and high condensing pressures

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Question 7

Where is the reciprocating compressor mostly suitable?

A. Small displacements and low condensing pressures
B. Large displacements and low condensing pressures
C. Small displacements and high condensing pressures
D. Large displacements and high condensing pressures

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Question 8

Why is multi-stage compression used?

A. To decrease the refrigeration effect
B. To increase work
C. To increase leakage loss
D. To improve C.O.P.

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Question 9

What is the pressure at the outlet of a refrigerant compressor?

A. Critical pressure
B. Suction pressure
C. Discharge pressure
D. Backpressure

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Question 10

Reciprocating compressors use pistons driven by a crankshaft.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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