Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Decrease of thermal efficiency Both (A) and (B) above Decrease of work ratio Increase of work ratio Decrease of thermal efficiency Both (A) and (B) above Decrease of work ratio Increase of work ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will First increase, reach maximum and then decrease Increase first at fast rate and then slow Decrease continuously Increase first at slow rate and then fast First increase, reach maximum and then decrease Increase first at fast rate and then slow Decrease continuously Increase first at slow rate and then fast ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Cools the delivered air Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages Cools the delivered air Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated h.p. to shaft h.p. in known as Isothermal efficiency Mechanical efficiency Volumetric efficiency Compressor efficiency Isothermal efficiency Mechanical efficiency Volumetric efficiency Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of Low frontal area High pressure rise Higher thrust None of the listed here Low frontal area High pressure rise Higher thrust None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Choose the correct statement Gas turbine is capable of rapid start up and loading Gas turbine requires lot of cooling water Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads Gas turbine is capable of rapid start up and loading Gas turbine requires lot of cooling water Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads ANSWER DOWNLOAD EXAMIANS APP
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