Explore topic-wise MCQs in Refrigeration.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.

1.

Due to what in wet-compression affects the heat transfer rates from the vapor refrigerant to the cooling medium?

A. Liquid droplets
B. Work consumed
C. Power required
D. In wet-compression the heat transfer remains unaffected
Answer» B. Work consumed
Discussion
2.

Power consumption in dry compression is less than wet compression.

A. True
B. False
Answer» C.
Discussion
3.

Which one of the following is not an assumption in theoretical vapour compression cycle?

A. There are no pressure losses in the condenser, evaporator, compressor, valves and the connecting part lines
B. All processes are reversible
C. There are mechanical and fluid friction losses
D. There is no heat transfer between the system and surroundings except in the evaporator and condenser
Answer» D. There is no heat transfer between the system and surroundings except in the evaporator and condenser
Discussion
4.

In case of reciprocating compressors, wet compression is avoided.

A. True
B. False
Answer» B. False
Discussion
5.

Which case is when the refrigerant compression process is carried while it s wet?

A. Wet state
B. Dry state
C. Semi-dry state
D. Always
Answer» B. Dry state
Discussion
6.

The COP of vapor compression when vapor is wet after compression having refrigeration effect (Re) of 60 and work done (W) of 20 is?

A. 3
B. 4
C. 4.2
D. 5
Answer» B. 4
Discussion