Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An air receiver is to be placed outside. Should it be placed in Enclosed room Sun Shade Rain Enclosed room Sun Shade Rain ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is All of these Decreased discharge temperature Higher volumetric efficiency Lower power consumption per unit of air delivered All of these Decreased discharge temperature Higher volumetric efficiency Lower power consumption per unit of air delivered ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air entry velocity m a rocket as compared to aircraft is Less Zero More Same Less Zero More Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called Isothermal efficiency Volumetric efficiency Compressor efficiency Mechanical efficiency Isothermal efficiency Volumetric efficiency Compressor efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
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