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Refrigeration and Air Conditioning

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

Back pressure
Discharge pressure
Critical pressure
Suction pressure

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Refrigeration and Air Conditioning
The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.

Unpredictable
Less
More
Equally

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Refrigeration and Air Conditioning
In which of the following refrigeration system, waste heat can be effectively used?

Vapour absorption cycle
Air refrigeration cycle
Vapour compression cycle
None of the listed here

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

CO?
All of these
Ammonia
R-12

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Refrigeration and Air Conditioning
A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be

43834
3
4
43833

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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.

Expansion valve
Compressor
Evaporator
Condenser

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MORE MCQ ON Refrigeration and Air Conditioning

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