Compressors, Gas Turbines and Jet Engines A centrifugal compressor works on the principle of Conversion of kinetic energy into pressure energy Centripetal action Conversion of pressure energy into kinetic energy Generating pressure directly Conversion of kinetic energy into pressure energy Centripetal action Conversion of pressure energy into kinetic energy Generating pressure directly ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor Decreases with increase in compression ratio Increases with increase in compression ratio Increases with decrease in compression ratio Decreases with decrease in compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio Increases with decrease in compression ratio Decreases with decrease in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Is self operating at zero flight speed Requires no air for its operation Is not self operating at zero flight speed Produces a jet consisting of plasma Is self operating at zero flight speed Requires no air for its operation Is not self operating at zero flight speed Produces a jet consisting of plasma ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work done per cycle to the swept volume in case of compressor is called Compression index Mean effective pressure Compressor efficiency Compression ratio Compression index Mean effective pressure Compressor efficiency Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor 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 Larger air handling ability per unit frontal area Higher pressure ratio per stage ANSWER DOWNLOAD EXAMIANS APP
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