Refrigeration and Air Conditioning
The air cooling system mostly used in transport type aircrafts is

Simple air cooling system
All of the listed here
Bootstrap air cooling system
Simple evaporative air cooling system

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

Increase in fin spacing and decrease in number of rows
Decrease in fin spacing and increase in number of rows
Increase 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
Dry bulb temperature is the temperature of air recorded by a thermometer, when

The moisture present in it begins to condense
Its bulb is surrounded by a wet cloth exposed to the air
None of the listed here
It is not affected by the moisture present in the air

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