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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The relative coefficient of performance is

Actual COP × theoretical COP
Theoretical COP/actual COP
Actual COP/theoretical COP
None of these

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Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

Remains constant
Decreases
Increases
None of the listed here

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

Evaporator
Expansion valve
Compressor
Condenser

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Refrigeration and Air Conditioning
In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Sub-cooled liquid region
None of the listed here
Wet vapour region
Superheated vapour region

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Refrigeration and Air Conditioning
Presence of moisture in a refrigerant affects the working of

Expansion valve
Compressor
Evaporator
Condenser

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Lower
Higher
None of these
Same

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