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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

very little power consumption
noisy operation
cooling below 0°C
quiet operation

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Refrigeration and Air Conditioning
The refrigerant for a refrigerator should have

High sensible heat
High latent heat
Low latent heat
High total heat

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is

High pressure saturated liquid
Wet vapour
Very wet vapour
Dry vapour

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Refrigeration and Air Conditioning
The relative coefficient of performance is equal to

(Actual C.O.P.) /(Theoretical C.O.P.)
(Theoretical C.O.P.)/ (Actual C.O.P.)
(Actual C.O.P.) × (Theoretical C.O.P.)
None of these

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Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

10 tons
5 tons
0.1 ton
40 tons

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Refrigeration and Air Conditioning
A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

1.33
4.33
2.33
3.33

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MORE MCQ ON Refrigeration and Air Conditioning

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