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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

None of these
Decreases
Increases
Remains constant

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Refrigeration and Air Conditioning
Accumulators should have adequate volume to store refrigerant charge at least

0.75
0.1
0.5
0.25

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Refrigeration and Air Conditioning
When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by

Lowering the higher temperature
Operating the machine at higher speeds
Raising the higher temperature
Operating the machine at lower speeds

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Refrigeration and Air Conditioning
Which of the following refrigerant is highly toxic and flammable?

Sulphur dioxide
R-12
Ammonia
Carbon dioxide

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

None of these
Same
More
Less

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MORE MCQ ON Refrigeration and Air Conditioning

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