Compressors, Gas Turbines and Jet Engines
A 3 m³/min compressor means that it

Delivers 3 m³/ min of compressed air at delivery pressure
Compresses 3 m³/min of standard air
Compresses 3 m³/ min of free air
Delivers 3 m³/ min of compressed air

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Compressors, Gas Turbines and Jet Engines
In a jet propulsion

Its functioning does not depend upon presence of air
The propulsive matter is ejected from within the propelled body
The propulsive matter is caused to flow around the propelled body
None of these

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