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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

Other factors decide C.O.P
O.P remains unaltered
Decreases C.O.P
Increases C.O.P

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

Before entering the expansion valve
After passing through the condenser
After passing through the expansion or throttle valve
Before passing through the condenser

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Zoetrope refrigerants
Halocarbon refrigerants
Inorganic refrigerants
Hydrocarbon refrigerants

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Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

Before passing through the condenser
Before entering the expansion valve
After passing through the condenser
After passing through the expansion or throttle valve

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Refrigeration and Air Conditioning
The freezing point of R-12 is

-86.6°C
-95.2°C
-135.8°C
-107.7°C

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

increases
remains same
depends on other factors
decreases

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MORE MCQ ON Refrigeration and Air Conditioning

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