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Refrigeration and Air Conditioning

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

Condenser, absorber and separator (rectifier)
Condenser
Evaporator
Absorber

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Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Centrifugal
Piston type reciprocating
Miniature sealed unit
Axial

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Refrigeration and Air Conditioning
The process, generally used in summer air conditioning to cool and dehumidify the air, is called

Cooling and dehumidification
Heating and humidification
Dehumidification
Humidification

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Refrigeration and Air Conditioning
A vapour absorption refrigerator uses _________ as a refrigerant.

Water
Freon
Ammonia
Aqua-ammonia

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

O.P remains unaltered
Decreases C.O.P
Increases C.O.P
Other factors decide C.O.P

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

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

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MORE MCQ ON Refrigeration and Air Conditioning

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