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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Dry saturated vapour
Wet vapour
Saturated liquid
Superheated vapour

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Refrigeration and Air Conditioning
Formation of frost on evaporator in refrigerator

Increases heat transfer rate
Can be avoided by proper design
Results in loss of heat due to poor heat transfer
Is immaterial

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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

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

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Refrigeration and Air Conditioning
In a psychrometric chart, specific humidity (moisture content) lines are

Horizontal and non-uniformly spaced
Vertical and uniformly spaced
Curved lines
Horizontal and uniformly spaced

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Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Evaporator
Compressor
Condenser
Expansion valve

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Refrigeration and Air Conditioning
During dehumidification process, _________ remains constant.

Dry bulb temperature
Specific humidity
Wet bulb temperature
Relative humidity

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