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Refrigeration and Air Conditioning - Interview Questions and Answers

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71. The COP of a vapour compression plant in comparison to vapour absorption plant is
A. more
B. less
C. same
D. more/less depending on size of plant
E. unpredictable.
Explanation:
72. Most of the domestic refrigerators work on the following refrigeration system
A. vapour compression
B. vapour absorption
C. carnot cycle
D. electrolux refrigerator
E. dual cycle.
Explanation:
73. The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will
A. increase
B. decrease
C. may increase or decrease depending on the type of refrigerant used
D. remain unaffected
E. unpredictable.
Explanation:
74. For obtaining high COP, the pressure range of compressor should be
A. high
B. low
C. optimum
D. any value
E. there is no such criterion.
Explanation:
75. The C.O.P. of a domestic refrigerator in comparison to domestic air conditioner will be
A. same
B. more
C. less
D. dependent on weather conditions
E. unpredictable.
Explanation:
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