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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

None of these
Increases
Decreases
Remains constant

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]
μ/[1 - (1 - μ) (Ps/Pb)]
None of these
0.622 Pv/ (Pb - Pv)

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

All of these
R-12
Ammonia
CO?

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Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

CO2
Freon-11
Ammonia
Freon-22

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Halocarbon refrigerants
Hydrocarbon refrigerants
Inorganic refrigerants
Zoetrope refrigerants

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

Soap and water
Sulphur sticks
All of these
Halide torch

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