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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

Remains constant
Increases
Decreases
None of these

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Refrigeration and Air Conditioning
The vapour compression refrigerator employs the following cycle

Reversed Carnot
Reversed Rankine
Carnot
Rankine

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Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Compression of the refrigerant vapour
Metering of the refrigerant liquid
Evaporation of the refrigerant liquid
Condensation of the refrigerant vapour

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Refrigeration and Air Conditioning
The condition of refrigerant as it leaves the compressor in a vapour compression system is

Superheated vapour
Wet vapour
Saturated liquid
Dry saturated vapour

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

0.2
6
1.2
5

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Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

Decreases C.O.P.
Increases C.O.P.
Does not alter C.O.P.
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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