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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The difference between dry bulb temperature and wet bulb temperature, is called

Dew point depression
Degree of saturation
Dry bulb depression
Wet bulb depression

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Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Commercial refrigerators
Domestic refrigerators
Air conditioning
Gas liquefaction

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Refrigeration and Air Conditioning
The coefficient of performance of Heat Pump is always ___ one.

Equal to
Greater than
None of the listed here
Less than

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Refrigeration and Air Conditioning
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively

Water and water
Ammonia and lithium bromide
Ammonia and water
Water and lithium bromide

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Refrigeration and Air Conditioning
The freezing point of sulphur dioxide is

-135.8°C
-75.2°C
-77.7°C
-56.6°C

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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