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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

Increases
Remains constant
None of the listed here
Decreases

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

Critical pressure
Discharge pressure
Back pressure
Suction pressure

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Refrigeration and Air Conditioning
In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is

Cooled and humidified
Cooled and dehumidified
Heated and humidified
Heated and dehumidified

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Refrigeration and Air Conditioning
Critical temperature is the temperature above which

Water will never evaporate
A gas will never liquefy
Water will evaporate
A gas will immediately liquefy

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Refrigeration and Air Conditioning
The superheated vapour region, in a pressure enthalpy chart, is represented by the space

None of these
Between the saturated liquid line and saturated vapour line
To the left of saturated liquid line
To the right of saturated liquid line

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

Carnot cycle
None of these
Reversed Carnot cycle

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