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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The COP of a domestic refrigerator

Is equal to 1
Is more than 1
Is less than 1
Depends upon the make

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-10.5°C
-77.7°C
-30°C
-33.3°C

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Refrigeration and Air Conditioning
Air refrigerator works on

Both (A) and (B)
Reversed Carnot cycle
Bell Coleman cycle
None of these

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Refrigeration and Air Conditioning
The pressure at the inlet of a refrigerant compressor is called

Discharge pressure
Back pressure
Critical pressure
Suction pressure

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Refrigeration and Air Conditioning
The process, generally used in winter air-conditioning to warm and humidity the air, is called

Dehumidification
Humidification
Cooling and dehumidification
Heating and humidification

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Refrigeration and Air Conditioning
The evaporator used in household refrigerators is

Frosting evaporator
Non-frosting evaporator
Defrosting evaporator
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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