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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air conditioning means

Heating
All of these
Cooling
Dehumidifying

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Improves C.O.P. of the system
Increases heat transfer
Reduces power consumption
Increases power consumption

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Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Condenser
Evaporator
Compressor
Expansion valve

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Refrigeration and Air Conditioning
The alignment circle is marked on the psychrometric chart at

26°C DBT and 50% RH
20°C DBT and 60% RH
26°C DBT and 60% RH
20°C DBT and 50% RH

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

5 to 7 TR
1 to 3 TR
0.1 to 0.3 TR
3 to 5 TR

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MORE MCQ ON Refrigeration and Air Conditioning

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