Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher average velocities Higher pressure ratio per stage Larger air handling ability per unit frontal area Aerofoil blades are used Higher average velocities Higher pressure ratio per stage Larger air handling ability per unit frontal area Aerofoil blades are used ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is Lower power consumption per unit of air delivered Decreased discharge temperature Higher volumetric efficiency All of these Lower power consumption per unit of air delivered Decreased discharge temperature Higher volumetric efficiency All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work-done per cycle to the stroke volume of the compressor is known as Compressor efficiency Compressor capacity Mean effective pressure Compression ratio Compressor efficiency Compressor capacity Mean effective pressure Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In multistage compressor, the isothermal compression is achieved by By constantly cooling the cylinder By insulating the cylinder Employing inter-cooler By running compressor at very slow speed By constantly cooling the cylinder By insulating the cylinder Employing inter-cooler By running compressor at very slow speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For supplying intermittent small quantity of air at high pressure, following compressor is best suited Screw Centrifugal Axial Reciprocating Screw Centrifugal Axial Reciprocating 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 first stage should be more Work done in subsequent stages should increase Work done in all stages should be equal Work done in subsequent stages should decrease Work done in first stage should be more Work done in subsequent stages should increase Work done in all stages should be equal Work done in subsequent stages should decrease ANSWER DOWNLOAD EXAMIANS APP
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