Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Bootstrap air cooling system
Simple air cooling system
Reduced ambient air cooling system
Regenerative air cooling system

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Refrigeration and Air Conditioning
Which of the following statement is correct?

The constant enthalpy lines are also constant wet bulb temperature lines
All of the listed here
The wet bulb and dry bulb temperature are equal at saturation condition
The wet bulb temperature is a measure of enthalpy of moist air

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