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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is ________ dew point temperature.

Lower than
None of these
Higher than
Same as

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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

Same
More
More/less depending on rating
Less

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Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

Pressure in the evaporator
Temperature of the evaporator
Degree of superheat at exit from the evaporator
None of these

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

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

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Saturated liquid
Superheated vapour
Wet vapour
Dry saturated vapour

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m²/h
m/hK
m²/hK
m/h

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MORE MCQ ON Refrigeration and Air Conditioning

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