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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

None of these
Decreases C.O.P.
Increases C.O.P.
Does not alter C.O.P.

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Refrigeration and Air Conditioning
Formation of frost on evaporator in refrigerator

Can be avoided by proper design
Is immaterial
Increases heat transfer rate
Results in loss of heat due to poor heat transfer

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

0.1 to 0.3 TR
5 to 7 TR
1 to 3 TR
3 to 5 TR

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Absorber, generator and liquid pump
Generator
Absorber and generator
Liquid pump

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Improves C.O.P. of the system
Reduces power consumption
Increases heat transfer
Increases power consumption

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Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Increases
None of these
Decreases
Remains constant

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MORE MCQ ON Refrigeration and Air Conditioning

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