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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The dehumidification process, on the psychrometric chart, is shown by

Curved line
Horizontal line
Inclined line
Vertical line

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 kg of wet air
1 m3 of dry air
1 m3 of water
1 kg of dry air

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Refrigeration and Air Conditioning
The wet bulb depression indicates _________ humidity of the air.

Absolute
Relative
None of these
Specific

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Evaporator
Expansion valve
Compressor
Condenser

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Refrigeration and Air Conditioning
The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.

Equally
More
Less
Unpredictable

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Refrigeration and Air Conditioning
Which of the following refrigerant has the lowest freezing point?

R-11
R-22
Ammonia
R-12

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MORE MCQ ON Refrigeration and Air Conditioning

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