Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate Decreases Increases Remain constant First decreases and then increases Decreases Increases Remain constant First decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
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 flow Increase in efficiency Decrease in flow Increase in flow and decrease in efficiency Increase in flow Increase in efficiency Decrease in flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake In the direction of motion of blades Depending on the velocity Opposite to the direction of motion of blades Equal to zero In the direction of motion of blades Depending on the velocity Opposite to the direction of motion of blades Equal to zero ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In which case the air-fuel ratio is likely to be maximum? 4-stroke petrol engine Gas turbine Multi cylinder engine 4-stroke diesel engine 4-stroke petrol engine Gas turbine Multi cylinder engine 4-stroke diesel engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor with clearance volume May increase/decrease depending on compressor capacity In not dependent upon compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio May increase/decrease depending on compressor capacity In not dependent upon compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a high pressure compressor, the delivery pressure is 10 to 15 bar 1 to 5 bar 8 to 10 bar 5 to 8 bar 10 to 15 bar 1 to 5 bar 8 to 10 bar 5 to 8 bar ANSWER DOWNLOAD EXAMIANS APP
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