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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Low
Optimum
High
Any value

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Refrigeration and Air Conditioning
Air refrigerator works on

None of these
Bell Coleman cycle
Reversed Carnot cycle
Both (A) and (B)

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Refrigeration and Air Conditioning
In a refrigeration system, heat absorbed in comparison to heat rejected is

More
Same
More for small capacity and less for high capacity
Less

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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 depending on rating
Less
Same
More

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible heating of air

None of these
Decreases
Increases
Remains constant

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Same
Lower
Higher
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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