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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
As relative humidity decreases, the dew point temperature will be ___ wet bulb temperature.

None of the listed here
Same as
Lower than
Higher than

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Refrigeration and Air Conditioning
Chaperon equation is applicable for registration at

Saturation point of vapour
Saturation point of liquid
Triple point
Sublimation temperature

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Refrigeration and Air Conditioning
During sensible cooling,

Partial pressure of vapour remains constant
Wet bulb temperature increases
Specific humidity increases
Relative humidity remains constant

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Refrigeration and Air Conditioning
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

7.44 kW
3.72 kW
18.6 kW
1.86 kW

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Refrigeration and Air Conditioning
The relative coefficient of performance is

Actual COP/theoretical COP
Actual COP × theoretical COP
Theoretical COP/actual COP
None of these

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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.

Higher
Same
Lower
None of these

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