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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be

4
43834
3
43833

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Refrigeration and Air Conditioning
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)

1 + B.P.F.
1/ B.P.F.
1 - B. P.F.
P.F. - 1

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

Vertical line
Inclined line
Curved line
Horizontal line

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Refrigeration and Air Conditioning
While designing the refrigeration system of an aircraft, the prime consideration is that the

Power per TR is low
Mass of the refrigeration equipment is low
System has high C.O.P.
Mass of refrigerant circulated in the system is low

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

After passing through the expansion or throttle valve
Before entering the expansion valve
After passing through the condenser
Before passing through the condenser

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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