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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
The capacity of a domestic refrigerator is in the range of

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

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Zoetrope refrigerants
Inorganic refrigerants
Hydrocarbon refrigerants
Halocarbon refrigerants

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

O.P remains unaltered
Other factors decide C.O.P
Decreases C.O.P
Increases C.O.P

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Refrigeration and Air Conditioning
For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be

Anything
Equal
Small
High

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Refrigeration and Air Conditioning
The capillary tube, as an expansion device, is used in

Water coolers
Room air conditioners
Domestic refrigerators
All of these

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MORE MCQ ON Refrigeration and Air Conditioning

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