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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The operating pressure for refrigerating units using R-12 as a refrigerant is

15 bar
8 bar
30 bar
2 bar

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour compression
Electrolux refrigerator
Carnot cycle
Vapour absorption

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/hK
m/hK
m/h
m²/h

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Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Superheated vapour
Wet vapour
Dry saturated vapour
Saturated liquid

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Refrigeration and Air Conditioning
For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is

100
50
20
Zero

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

Same
Less
None of these
More

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MORE MCQ ON Refrigeration and Air Conditioning

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