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Refrigeration and Air Conditioning

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

Ammonia
CO?
All of these
R-12

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

Before entering the condenser
Before entering the compressor
After leaving the compressor
After leaving the condenser

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Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

21 kJ/min
210 kJ/min
620 kJ/min
420 kJ/min

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Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

Freon-22
CO2
Ammonia
Freon-11

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Refrigeration and Air Conditioning
The boiling point of ________ is 10.5°C.

Carbon dioxide
R-12
Sulphur dioxide
Ammonia

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Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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MORE MCQ ON Refrigeration and Air Conditioning

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