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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The COP of a domestic refrigerator

Is less than 1
Is equal to 1
Depends upon the make
Is more than 1

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Refrigeration and Air Conditioning
The vapour pressure of refrigerant should be

Lower than atmospheric pressure
Higher than atmospheric pressure
Could be anything
Equal to atmospheric pressure

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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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Refrigeration and Air Conditioning
One ton refrigeration corresponds to

80 kcal/ hr
50 kcal/ hr
80 kcal/ min
50 kcal/ min

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

Between condenser and evaporator
Between compressor and condenser
In evaporator
Before expansion valve

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Refrigeration and Air Conditioning
The leaks in a refrigeration system using Freon are detected by

Sulphur sticks which on detection gives white smoke
Halide torch which on detection produces greenish flame lighting
Using reagents
Smelling

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MORE MCQ ON Refrigeration and Air Conditioning

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