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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Compressor and condenser
Condenser and receiver
Receiver and evaporator
Evaporator and compressor

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Refrigeration and Air Conditioning
The dehumidification process, on the psychrometric chart, is shown by

Inclined line
Horizontal line
Curved line
Vertical line

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Refrigeration and Air Conditioning
A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called

Low side float valve
Automatic expansion valve
High side float valve
Thermostatic expansion valve

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Refrigeration and Air Conditioning
The bank of tubes at the back of domestic refrigerator is

Condenser tubes
Capillary tubes
Evaporator tubes
Refrigerant cooling tubes

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Refrigeration and Air Conditioning
The capillary tube is not used in large capacity refrigeration systems because

Capacity control is not possible
Cost is too high
It is made of copper
Required pressure drop cannot be achieved

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MORE MCQ ON Refrigeration and Air Conditioning

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