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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The COP of a domestic refrigerator

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

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and

Sulphur dioxide
Lithium bromide
Carbon dioxide
R-12

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-77.7°C
-10.5°C
-30°C
-33.3°C

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Refrigeration and Air Conditioning
In vapour compression refrigeration system, refrigerant occurs as liquid between

Condenser and expansion valve
Compressor and condenser
Expansion valve and evaporator
Compressor and evaporator

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Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

None of the listed here
Is higher than that of the entering air
Is lower than that of the entering air
Can be lower or higher than that of the entering air

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MORE MCQ ON Refrigeration and Air Conditioning

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