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Refrigeration and Air Conditioning

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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Refrigeration and Air Conditioning
The coefficient of performance of Heat Pump is always ___ one.

Greater than
None of the listed here
Equal to
Less than

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Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

None of the listed here
Can be lower or higher than that of the entering air
Is lower than that of the entering air
Is higher than that of the entering air

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Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Cools below 0°C
Gives noisy operation
Gives quiet operation
Requires little power consumption

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Refrigeration and Air Conditioning
A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be

All of these
Water temperature being high
Lack of cooling water
Dirty condenser surface

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Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Ammonia
Sulphur dioxide
Carbon dioxide
Fluorine

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MORE MCQ ON Refrigeration and Air Conditioning

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