Compressors, Gas Turbines and Jet Engines
A turboprop is preferred to turbojet because

It can fly at high elevations
It can fly at supersonic speeds
It has high propulsive efficiency at high speeds
It has high power for take off

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Compressors, Gas Turbines and Jet Engines
In the cross compounding of the gas turbine plant

All are connected in series
Both the arrangements can be employed
H.P. compressor is connected to H.P. turbine and L.P. compressor to L.P. turbine
H.P. compressor is connected to L.P. turbine and L.P. compressor is connected to H.P. turbine

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