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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during humidification process

Remains constant
Increases
None of these
Decreases

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Refrigeration and Air Conditioning
Air conditioning means

Heating
Dehumidifying
All of these
Cooling

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Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Sulphur dioxide
Fluorine
Carbon dioxide
Ammonia

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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
Ambient air temperature
Dry bulb temperature of air

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Refrigeration and Air Conditioning
The optimum effective temperature for human comfort is

Not dependent on season
Same in winter and summer
Higher in winter than in summer
Lower in winter than in summer

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Refrigeration and Air Conditioning
An evaporator is also known as

All of these
Chilling coil
Freezing coil
Cooling coil

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