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Refrigeration and Air Conditioning

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

Carnot
Reversed Rankine
Reversed Carnot
Rankine

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

In evaporator
Between condenser and evaporator
Before expansion valve
Between compressor and condenser

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Refrigeration and Air Conditioning
The relative coefficient of performance is

None of these
Actual COP/theoretical COP
Theoretical COP/actual COP
Actual COP × theoretical COP

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Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

5 tons
40 tons
10 tons
0.1 ton

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Refrigeration and Air Conditioning
On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

Involves no change in volume
Takes place at constant temperature
Takes place at constant entropy
Takes place at constant pressure

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Refrigeration and Air Conditioning
Which of the following is not a desirable property of a refrigerant?

Good electrical conductor
Large latent heat
Low boiling point
High risibility with oil

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MORE MCQ ON Refrigeration and Air Conditioning

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