Explore topic-wise MCQs in Refrigeration.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following factor of the actual VCR affects severely the coefficient of performance?

A. Increase in suction pressure
B. Decrease in discharge pressure
C. Decrease in suction pressure
D. Increase in discharge pressure
Answer» D. Increase in discharge pressure
Discussion
2.

What is the effect of an increase in discharge pressure on C.O.P.?

A. C.O.P. decreases
B. C.O.P. increases
C. C.O.P. remains the same
D. C.O.P. becomes zero
Answer» B. C.O.P. increases
Discussion
3.

What is the effect of a decrease in suction pressure on C.O.P.?

A. C.O.P. increases
B. C.O.P. decreases
C. C.O.P. remains the same
D. C.O.P. becomes zero
Answer» C. C.O.P. remains the same
Discussion
4.

Which of the following is not the difference between theoretical and actual VCR cycle?

A. Pressure drops in the evaporator
B. Pressure drops in the condenser
C. Compression of refrigerant is never polytropic
D. Compression of refrigerant is always isentropic
Answer» E.
Discussion