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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Brass
Copper
Aluminium
Steel

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Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

Remains constant
None of the listed here
Increases
Decreases

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-10.5°C
-30°C
-33.3°C
-77.7°C

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m/hK
m/h
m²/h
m²/hK

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Refrigeration and Air Conditioning
The higher temperature in vapour compression cycle occurs at

Expansion valve
Evaporator
Receiver
Compressor discharge

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Refrigeration and Air Conditioning
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.

More
Less
Same
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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