Compressors, Gas Turbines and Jet Engines In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of Compressed air Atmospheric air Oxygen alone Vacuum Compressed air Atmospheric air Oxygen alone Vacuum ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate First decreases and then increases Remain constant Increases Decreases First decreases and then increases Remain constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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 With the decrease in compression ratio, the volumetric efficiency Does not change Decreases First decrease and then increase Increases Does not change Decreases First decrease and then increase Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressor is best suited for Large quantity of air at high pressure Large quantity of air at low pressure Small quantity of air at high pressure Small quantity of air at low pressure Large quantity of air at high pressure Large quantity of air at low pressure Small quantity of air at high pressure Small quantity of air at low pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Cools the delivered air Enables compression in two stages Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Cools the delivered air Enables compression in two stages Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure ANSWER DOWNLOAD EXAMIANS APP
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