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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour absorption
Electrolux refrigerator
Carnot cycle
Vapour compression

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Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

None of these
Decreases
Increases
Remains constant

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Refrigeration and Air Conditioning
In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

Superheated vapour region
Sub-cooled liquid region
Wet vapour region
None of the listed here

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

increases
decreases
remains same
depends on other factors

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Refrigeration and Air Conditioning
A refrigerant compressor is used to

Circulate the refrigerant through the refrigerating system
Raise the pressure of the refrigerant
All of these
Raise the temperature of the refrigerant

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MORE MCQ ON Refrigeration and Air Conditioning

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