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Refrigeration and Air Conditioning

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

5 tons
0.1 ton
10 tons
40 tons

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

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

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Refrigeration and Air Conditioning
In chemical dehumidification process,

Wet bulb temperature decreases
Dew point temperature decreases
Dry bulb temperature increases
All of these

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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

4.33
1.33
2.33
3.33

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Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

Soap and water
All of these
Sulphur sticks
Halide torch

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Refrigeration and Air Conditioning
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will

Remain unaffected
Increase
May increase or decrease depending on the type of refrigerant used
Decrease

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MORE MCQ ON Refrigeration and Air Conditioning

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