Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, an increase in speed at a given pressure ratio causes Increase in flow and decrease in efficiency Increase in efficiency Decrease in flow Increase in flow Increase in flow and decrease in efficiency Increase in efficiency Decrease in flow Increase in flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Air-fuel ratio in a jet engine will be of the order of 0.83402777777778 0.41736111111111 0.62569444444444 2.5006944444444 0.83402777777778 0.41736111111111 0.62569444444444 2.5006944444444 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Turbofan engine employs Solid fuel firing Two or more air streams One air stream No air stream Solid fuel firing Two or more air streams One air stream No air stream ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume Decreases with increase in compression ratio Is not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio Is not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a reciprocating air compressor, the compression work per kg of air Decreases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Increases as clearance volume increases Decreases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Increases as clearance volume increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means No flow of air Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio No flow of air Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP
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