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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In S.J. unit, one ton of refrigeration is equal to

210 kJ/ min
420 kJ/ min
840 kJ/ min
21 kJ/ min

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m/hK
m²/h
m²/hK
m/h

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Refrigeration and Air Conditioning
The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called

Wet bulb temperature
Dry bulb temperature
Dew point temperature
None of these

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Refrigeration and Air Conditioning
The minimum temperature to which water can be cooled in a cooling tower is

Dry bulb temperature of air
Ambient air temperature
Wet bulb temperature of air
Dew point temperature of air

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Refrigeration and Air Conditioning
One of the purposes of sub cooling the liquid refrigerant is to

Reduce compressor overheating
Reduce compressor discharge temperature
Increase cooling effect
Ensure that only liquid and not the vapour enters the expansion (throttling) valve

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Refrigeration and Air Conditioning
In vapour compression refrigeration system, refrigerant occurs as liquid between

Expansion valve and evaporator
Compressor and evaporator
Compressor and condenser
Condenser and expansion valve

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MORE MCQ ON Refrigeration and Air Conditioning

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