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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

O.P remains unaltered
Decreases C.O.P
Increases C.O.P
Other factors decide C.O.P

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

Inclined line
Curved line
Horizontal line
Vertical line

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Generator
Absorber and generator
Absorber, generator and liquid pump
Liquid pump

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Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Optimum
Low
High
Any value

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Refrigeration and Air Conditioning
The specific humidity during humidification process

Remains constant
Increases
Decreases
None of these

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Refrigeration and Air Conditioning
One of the purposes of sub cooling the liquid refrigerant is to

Reduce compressor discharge temperature
Increase cooling effect
Ensure that only liquid and not the vapour enters the expansion (throttling) valve
Reduce compressor overheating

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MORE MCQ ON Refrigeration and Air Conditioning

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