Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To save fuel To increase the efficiency To increase the output To reduce the exit temperature To save fuel To increase the efficiency To increase the output To reduce the exit temperature ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Compressor efficiency Volumetric efficiency Expansion ratio Compression ratio Compressor efficiency Volumetric efficiency Expansion ratio Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isothermal compression None of the listed here Polytropic compression Isentropic compression Isothermal compression None of the listed here Polytropic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A centrifugal compressor works on the principle of Centripetal action Conversion of pressure energy into kinetic energy Generating pressure directly Conversion of kinetic energy into pressure energy Centripetal action Conversion of pressure energy into kinetic energy Generating pressure directly Conversion of kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The most efficient method of compressing air is to compress it Isentropically Isochronically Adiabatically Isothermally Isentropically Isochronically Adiabatically Isothermally ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS