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.

The ratio of COP of vapor compression cycle and COP of Carnot cycle is known as?

A. Relative COP
B. Ideal COP
C. Performance index
D. Theoretical COP
Answer» D. Theoretical COP
Discussion
2.

Dry compression is preferred over wet compression.

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

In which case does the compression process remains in superheated state?

A. Wet state
B. Dry state
C. Semi-dry state
D. Always
Answer» C. Semi-dry state
Discussion
4.

One of the assumptions of the vapor compression cycle is that all of the processes are reversible.

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

Entropy of dry-saturated vapor when Sf is 0.2513 and Sfg is 4.7878, is _______
Sf Entropy of saturated liquid at pressure p

A. nS<sub>fg</sub> Entropy change during vaporization
B. 6.987
C. 5.987
D. 5.0391
E. 4.776
Answer» D. 5.0391
Discussion
6.

The COP of vapor compression having vapor as dry saturated after compression having refrigeration effect (Re) of 58.84 and work done (W) of 17.95 is ________

A. 3.278
B. 4.39
C. 4.234
D. 3.865
Answer» B. 4.39
Discussion