Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 1 - (1/r) ɣ/ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 1 - (1/r) ɣ/ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The working fluid in a turbine is In the form of air and water mixture In two phases In three phases In a single phase In the form of air and water mixture In two phases In three phases In a single phase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine. Higher Lower None of these Same Higher Lower None of these Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thrust of a jet propulsion power unit can be increased by Injecting water into the compressor Burning fuel after gas turbine Injecting ammonia into the combustion chamber All of these Injecting water into the compressor Burning fuel after gas turbine Injecting ammonia into the combustion chamber All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Euler's equation is applicable for Pumps Axial compressor Centrifugal compressor All of these Pumps Axial compressor Centrifugal compressor All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression though most efficient, but is not practicable because It is impossible in practice It requires very big cylinder It does not increase pressure much Compressor has to run at very slow speed to achieve it It is impossible in practice It requires very big cylinder It does not increase pressure much Compressor has to run at very slow speed to achieve it ANSWER DOWNLOAD EXAMIANS APP
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