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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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Refrigeration and Air Conditioning
The lowest temperature during the cycle in a vapour compression system occurs after

Compression
Evaporation
Expansion
Condensation

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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

4
43834
3
43833

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Refrigeration and Air Conditioning
Carbon dioxide is

All of the listed here
Non-flammable
Odourless
Colourless

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

R-12
Carbon dioxide
Sulphur dioxide
Ammonia

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Refrigeration and Air Conditioning
Air refrigeration operates on

Carnot cycle
Brayton cycle
Rankine’s cycle
Reversed Carnot cycle

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