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Refrigeration and Air Conditioning

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
During sensible cooling,

Wet bulb temperature increases
Relative humidity remains constant
Partial pressure of vapour remains constant
Specific humidity increases

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Refrigeration and Air Conditioning
Ammonia absorption refrigeration cycle requires

Zero work input
Very little work input
Maximum work input
Nearly same work input as for vapour compression cycle

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

Halide torch
Soap and water
All of these
Sulphur sticks

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Refrigeration and Air Conditioning
The specific humidity during humidification process

None of these
Increases
Decreases
Remains constant

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Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

Decreases
None of the listed here
Remains constant
Increases

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