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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The COP of a domestic refrigerator

Depends upon the make
Is less than 1
Is equal to 1
Is more than 1

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Refrigeration and Air Conditioning
In vapour compression cycle using NH₃ as refrigerant, initial charge is filled at

Low pressure side near receiver
High pressure side close to receiver
Delivery of compressor
Suction of compressor

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

None of these
Reversed Carnot cycle
Carnot cycle

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Refrigeration and Air Conditioning
For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is

20
100
Zero
50

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Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

Degree of superheat at exit from the evaporator
Temperature of the evaporator
None of these
Pressure in the evaporator

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Refrigeration and Air Conditioning
Critical temperature is the temperature above which

Water will evaporate
A gas will immediately liquefy
A gas will never liquefy
Water will never evaporate

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MORE MCQ ON Refrigeration and Air Conditioning

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