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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Air conditioning
Gas liquefaction
Domestic refrigerators
Commercial refrigerators

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Refrigeration and Air Conditioning
The humidity ratio or specific humidity is the mass of water vapour present in

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

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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

Carbon dioxide
Sulphur dioxide
Lithium bromide
R-12

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

Relative humidity
Dry bulb temperature
Specific humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 - (1/C.O.P)
1 - C.O.P.
1 + (1/C.O.P)
1 + C.O.P

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Refrigeration and Air Conditioning
In a reversed Brayton cycle, the heat is absorbed by the air during

Isentropic compression process
Isentropic expansion process
Constant pressure expansion process
Constant pressure cooling process

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MORE MCQ ON Refrigeration and Air Conditioning

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