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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
Higher than
None of these
Same as

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Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

Decreases C.O.P.
Does not alter C.O.P.
None of these
Increases C.O.P.

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

Between condenser and evaporator
In evaporator
Between compressor and condenser
Before expansion valve

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Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

Three fluids
None of the listed here
Single fluid
Two fluids

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Refrigeration and Air Conditioning
Reducing suction pressure in refrigeration cycle

All of these
Increases power required per ton of refrigeration
Lowers compressor capacity because vapour is lighter
Lowers evaporation temperature

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m/h
m²/h
m²/hK
m/hK

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MORE MCQ ON Refrigeration and Air Conditioning

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