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Refrigeration and Air Conditioning

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

Dry bulb temperature
Relative humidity
Specific humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
Moisture should be removed from refrigerants to avoid

Corrosion of steel plates
All of these
Restriction to refrigerant flow
Freezing at the expansion valve

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Refrigeration and Air Conditioning
The vertical and uniformly spaced lines on a psychrometric chart indicates

Dry bulb temperature
Dew point temperature
Wet bulb temperature
Specific humidity

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

None of these
Remains constant
Increases
Decreases

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Refrigeration and Air Conditioning
A standard ice point temperature corresponds to the temperature of

Mixture of ice and water under equilibrium conditions
Ice at 4°C
Solid and dry ice
Water at 0°C

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Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

remains same
depends on other factors
decreases
increases

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