Refrigeration and Air Conditioning
In aircraft, air refrigeration Cycle is used because of

Low temperature at high altitudes
Higher coefficient of performance
Low weight per tonne of refrigeration
High heat transfer rate

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Refrigeration and Air Conditioning
The bypass factor of a cooling coil decreases with

Increase in fin spacing and increase in number of rows
Increase in fin spacing and decrease in number of rows
Decrease in fin spacing and increase in number of rows
Decrease in fin spacing and decrease in number of rows

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Refrigeration and Air Conditioning
In a saturated air-water vapour mixture, the

Dew point temperature is lower than wet bulb temperature
Dry bulb, wet bulb and dew point temperature are same
Dry bulb temperature is higher than dew point temperature
Dry bulb temperature is higher than wet bulb temperature

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