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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Cooling water is required for following equipment in ammonia absorption plant

Condenser, absorber and separator (rectifier)
Condenser
Evaporator
Absorber

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 12 hours
In 24 hours
In 1 hour
In 1 minute

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Refrigeration and Air Conditioning
The value of C.O.P in vapour compression cycle is usually

Equal to unity
Always less than unity
Always more than unity
Any one of the above

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

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

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Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Discharge pressure
Suction pressure
Back pressure
Critical pressure

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MORE MCQ ON Refrigeration and Air Conditioning

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