Compressors, Gas Turbines and Jet Engines A rocket works with maximum overall efficiency when air craft velocity is equal to the Half the jet velocity Average of the jet velocity Jet velocity Twice the jet velocity Half the jet velocity Average of the jet velocity Jet velocity Twice the jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Choose the correct statement Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads Gas turbine requires lot of cooling water Gas turbine is capable of rapid start up and loading Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads Gas turbine requires lot of cooling water Gas turbine is capable of rapid start up and loading ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inlet pressure is always ___ the discharge pressure. None of the listed here Equal to More than Less than None of the listed here Equal to More than Less than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Intercooling in gas turbines Increases net output but decreases thermal efficiency Increases net output and thermal efficiency both Decreases net output and thermal efficiency both Decreases net output but increases thermal efficiency Increases net output but decreases thermal efficiency Increases net output and thermal efficiency both Decreases net output and thermal efficiency both Decreases net output but increases thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio Increases Remain same Decreases First increases and then decreases Increases Remain same Decreases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In multistage compressor, the isothermal compression is achieved by Employing inter-cooler By insulating the cylinder By constantly cooling the cylinder By running compressor at very slow speed Employing inter-cooler By insulating the cylinder By constantly cooling the cylinder By running compressor at very slow speed ANSWER DOWNLOAD EXAMIANS APP
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