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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During adiabatic saturation process on unsaturated air ___ remains constant.

Dry bulb temperature
Dew point temperature
Wet bulb temperature
Relative humidity

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Refrigeration and Air Conditioning
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called

Absolute humidity
Humidity ratio
Degree of saturation
Relative humidity

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Refrigeration and Air Conditioning
The curved lines on a psychrometric chart indicates

Dew point temperature
Dry bulb temperature
Wet bulb temperature
Relative humidity

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Refrigeration and Air Conditioning
Vertical lines on pressure-enthalpy chart show constant

Entropy lines
Total heat lines
Temperature lines
Pressure lines

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Saturated liquid
Wet vapour
Superheated vapour
Dry saturated vapour

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Refrigeration and Air Conditioning
Wet bulb temperature is the temperature of air recorded by a thermometer, when

It is not affected by the moisture present in the air
Its bulb is surrounded by a wet cloth exposed to the air
The moisture present in it begins to condense
None of these

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