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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

Lower than
Higher than
Same as
None of the listed here

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Refrigeration and Air Conditioning
In a vapour compression cycle, the refrigerant immediately after expansion valve is

Sub-cooled liquid
Saturated liquid
Liquid
Wet vapour

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Refrigeration and Air Conditioning
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

Dalton's law of partial pressures
Avogadro's hypothesis
Newton's law of gases
Kinetic theory of gases

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

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

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

Discharge pressure
Suction pressure
Back pressure
Critical pressure

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Higher
Lower
Same
None of these

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