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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The leakage in a refrigeration system using ammonia is detected by

Sulphur sticks
All of these
Halide torch
Soap and water

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 m3 of dry air
1 kg of dry air
1 kg of wet air
1 m3 of water

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Refrigeration and Air Conditioning
Cooling water is required for following equipment in ammonia absorption plant

Condenser, absorber and separator (rectifier)
Absorber
Evaporator
Condenser

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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
Compressor and evaporator
Expansion valve and evaporator

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Refrigeration and Air Conditioning
The human body feels comfortable when the heat stored in the body is

Positive
Negative
None of these
Zero

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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MORE MCQ ON Refrigeration and Air Conditioning

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