Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. One fourth One-half One sixth Same One fourth One-half One sixth Same 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 turbine requires lot of cooling water Gas turbine is capable of rapid start up and loading Gas turbines has flat efficiency at part loads Gas turbines have high standby losses and require lot of maintenance Gas turbine requires lot of cooling water Gas turbine is capable of rapid start up and loading Gas turbines has flat efficiency at part loads ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the Compression work/motor input Isothermal H.P/indicated H.R Total output/air input Isothermal H.P./shaft H.R Compression work/motor input Isothermal H.P/indicated H.R Total output/air input Isothermal H.P./shaft H.R ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency for reciprocating air compressors is about 40 to 60% 60 to 70% 70 to 90% 10 to 40% 40 to 60% 60 to 70% 70 to 90% 10 to 40% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.75 0.85 0.9 0.99 0.75 0.85 0.9 0.99 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Convert pressure energy into kinetic energy Increase velocity Convert kinetic energy into pressure energy Make the flow streamline Convert pressure energy into kinetic energy Increase velocity Convert kinetic energy into pressure energy Make the flow streamline ANSWER DOWNLOAD EXAMIANS APP
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