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REFRIGERATION AND AIR CONDITIONING

Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

None of these
Increases
Decreases
Remains constant

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

Ammonia
All of these
R-12
CO?

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Refrigeration and Air Conditioning
In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be

Zero
Any value
As low as possible (3 to 11°C)
High, of the order of 25°

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

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

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Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Gas liquefaction
Air conditioning
Commercial refrigerators
Domestic refrigerators

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