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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Commercial refrigerators
Gas liquefaction
Domestic refrigerators
Air conditioning

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

Any value
Optimum
Low
High

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Refrigeration and Air Conditioning
In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

0.67
0.3
0.6
1.5

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Refrigeration and Air Conditioning
The power per tonne of refrigeration is

3.5/C.O.P.
3.5 × C.O.P.
None of these
O.P/3.5

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Refrigeration and Air Conditioning
Moisture in Freon refrigeration system causes

Ineffective refrigeration
Freezing automatic regulating valve
High power consumption
Corrosion of whole system

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible heating of air

Increases
Decreases
None of these
Remains constant

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MORE MCQ ON Refrigeration and Air Conditioning

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