Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher average velocities Aerofoil blades are used Higher pressure ratio per stage Larger air handling ability per unit frontal area Higher average velocities Aerofoil blades are used Higher pressure ratio per stage Larger air handling ability per unit frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In turbo fan engine, the jet velocity as compared to turbojet engine is More Same May be less or more depending upon speed Less More Same May be less or more depending upon speed Less ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air entry velocity m a rocket as compared to aircraft is Zero Less More Same Zero Less More Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Do not damage turbine blades Reduces exhaust temperature Increases power output Improves thermal efficiency Do not damage turbine blades Reduces exhaust temperature Increases power output Improves thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt? 6 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 18 m³/ mt. 6 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 18 m³/ mt. 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 all stages should be equal Work done in subsequent stages should decrease Work done in subsequent stages should increase Work done in first stage should be more Work done in all stages should be equal Work done in subsequent stages should decrease Work done in subsequent stages should increase Work done in first stage should be more ANSWER DOWNLOAD EXAMIANS APP
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