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Refrigeration and Air Conditioning

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

Domestic refrigerators
All of these
Water coolers
Room air conditioners

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Bright green
Orange
Red
Yellow

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Refrigeration and Air Conditioning
Moisture should be removed from refrigerants to avoid

Restriction to refrigerant flow
Freezing at the expansion valve
Corrosion of steel plates
All of these

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

Expansion valve
Evaporator
Condenser
Compressor

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Refrigeration and Air Conditioning
The difference between dry bulb temperature and wet bulb temperature, is called

Wet bulb depression
Dew point depression
Degree of saturation
Dry bulb depression

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MORE MCQ ON Refrigeration and Air Conditioning

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