Home > Mechanical Engineering > Refrigeration and Air Conditioning

Refrigeration and Air Conditioning - Interview Questions and Answers

Prepare for your technical interview with these Refrigeration and Air Conditioning questions.

Ready to test your skills?

Take a timed mock test specifically for Refrigeration and Air Conditioning.

Start Mock Test
31. Absorption system normally uses the following refrigerant
A. Freon-11
B. Freon-22
C. C02
D. S02
E. ammonia.
Explanation:
32. One of the purposes of sub-cooling the liquid refrigerant is to
A. reduce compressor overheating
B. reduce compressor discharge tempera-ture
C. increase cooling effect
D. ensure that only liquid and not the vapour enters the expansion (throttling) valve
E. none of the above.
Explanation:
33. The domestic refrigerator uses following type of compressor
A. centrifugal
B. axial
C. miniature sealed unit
D. piston type reciprocating
E. none of the above.
Explanation:
34. In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
A. after passing through the condenser
B. before passing through the condenser
C. after passing through the expansion or throttle valve
D. before entering the expansion valve
E. before entering the compressor.
Explanation:
35. In a refrigeration system, heat absorbed in comparison to heat rejected is
A. more
B. less
C. same
D. more for small capacity and less for high capacity
E. less for small capacity and more for high capacity.
Explanation:
« Prev123456789101112131415161718Next »