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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Domestic refrigerators
Gas liquefaction
Commercial refrigerators
Air conditioning

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

Increases
Decreases
Remains constant
None of the listed here

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Refrigeration and Air Conditioning
The relative coefficient of performance is equal to

(Actual C.O.P.) × (Theoretical C.O.P.)
(Actual C.O.P.) /(Theoretical C.O.P.)
(Theoretical C.O.P.)/ (Actual C.O.P.)
None of these

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Refrigeration and Air Conditioning
During adiabatic saturation process on unsaturated air ___ remains constant.

Relative humidity
Dry bulb temperature
Wet bulb temperature
Dew point temperature

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Refrigeration and Air Conditioning
While designing the refrigeration system of an aircraft, the prime consideration is that the

Mass of refrigerant circulated in the system is low
System has high C.O.P.
Power per TR is low
Mass of the refrigeration equipment is low

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Refrigeration and Air Conditioning
During dehumidification process, _________ remains constant.

Wet bulb temperature
Dry bulb temperature
Specific humidity
Relative humidity

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