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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A refrigerant with the highest critical pressure is

R-12
Ammonia
R-22
R-11

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

R-12
Carbon dioxide
Ammonia
Sulphur dioxide

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

1 to 3 TR
3 to 5 TR
0.1 to 0.3 TR
5 to 7 TR

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Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

Increases
Decreases
Remains constant
None of these

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Refrigeration and Air Conditioning
If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be

More
Less
Same
More/less depending on rating

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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

Zero
50
100
20

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MORE MCQ ON Refrigeration and Air Conditioning

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