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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Expansion valve
Compressor
Condenser
Evaporator

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Indirect
Compression
Direct
Absorption

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Red
Yellow
Bright green
Orange

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Refrigeration and Air Conditioning
The vertical and uniformly spaced lines on a psychrometric chart indicates

Wet bulb temperature
Specific humidity
Dry bulb temperature
Dew point temperature

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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
Evaporator and compressor
Receiver and evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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