Compressors, Gas Turbines and Jet Engines
Ramjet engine

Requires no air for its operation
Is not self operating at zero flight speed
Is self operating at zero flight speed
Produces a jet consisting of plasma

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Compressors, Gas Turbines and Jet Engines
In the axial flow gas turbine, the work ratio is the ratio of

Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet
Output and input
Compressor work and turbine work
Actual compressor work and theoretical compressor work

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