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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Evaporator
Condenser
Expansion valve

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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 and generator
Absorber, generator and liquid pump
Liquid pump
Generator

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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
1 to 3 TR
3 to 5 TR
5 to 7 TR

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Refrigeration and Air Conditioning
If a gas is to be liquefied, its temperature must be

Increased to a value above its critical temperature
Reduced to a value below its critical temperature
None of these
Equal to critical temperature

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Refrigeration and Air Conditioning
During heating and dehumidification process, dry bulb temperature

Remains constant
Increases
None of these
Decreases

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 + C.O.P
1 + (1/C.O.P)
1 - (1/C.O.P)
1 - C.O.P.

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