Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The maximum efficiency is higher than multistage axial flow compressors The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor The static pressure of air in the impeller increases in order to provide centripetal force on the air The maximum efficiency is higher than multistage axial flow compressors The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor The static pressure of air in the impeller increases in order to provide centripetal force on the air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Compression of inlet air Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Compression of inlet air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For minimum work in multistage compression, assuming same index of compression in all stages Work done in first stage should be more Work done in all stages should be equal Work done in subsequent stages should increase Work done in subsequent stages should decrease Work done in first stage should be more Work done in all stages should be equal Work done in subsequent stages should increase Work done in subsequent stages should decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is 15 KW 6000 KW 600 KW 150 KW 15 KW 6000 KW 600 KW 150 KW ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The velocity of air entering in a rocket is ___ as compared to an aircraft. More Zero Same Less More Zero Same Less ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reciprocating air compressor is best suited for Large quantity of air at low pressure Small quantity of air at low pressure Small quantity of air at high pressure Large quantity of air at high pressure Large quantity of air at low pressure Small quantity of air at low pressure Small quantity of air at high pressure Large quantity of air at high pressure ANSWER DOWNLOAD EXAMIANS APP
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