Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Larger air handling ability per unit frontal area Higher pressure ratio per stage Higher average velocities Aerofoil blades are used Larger air handling ability per unit frontal area Higher pressure ratio per stage Higher average velocities Aerofoil blades are used ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressor is best suited for Small quantity of air at high pressure Small quantity of air at low pressure Large quantity of air at low pressure Large quantity of air at high pressure Small quantity of air at high pressure Small quantity of air at low pressure Large quantity of air at low pressure Large quantity of air at high pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of None of the listed here High pressure rise Higher thrust Low frontal area None of the listed here High pressure rise Higher thrust Low frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To increase the output To increase the efficiency To reduce the exit temperature To save fuel To increase the output To increase the efficiency To reduce the exit temperature To save fuel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the aircraft propellers Its functioning does not depend on presence of air All of these The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body Its functioning does not depend on presence of air All of these The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body ANSWER DOWNLOAD EXAMIANS APP
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