Compressors, Gas Turbines and Jet Engines For slow speed large capacity compressor, following type of valve will be best suited Any of the above Disc or feather type Poppet valve Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Any of the above Disc or feather type Poppet valve Mechanical valve of the Corliss, sleeve, rotary or semi rotary type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher average velocities Higher pressure ratio per stage Aerofoil blades are used Larger air handling ability per unit frontal area Higher average velocities Higher pressure ratio per stage Aerofoil blades are used Larger air handling ability per unit frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work ratio of simple gas turbine cycle depends on Minimum cycle temperature Maximum cycle temperature All of these Pressure ratio Minimum cycle temperature Maximum cycle temperature All of these Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume Decreases with increase in compression ratio Is not dependent upon compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity Decreases with increase in compression ratio Is not dependent upon compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is Pressure drop across the valves Superheating in compressor All of these Clearance volume and leakages Pressure drop across the valves Superheating in compressor All of these Clearance volume and leakages ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the axial flow gas turbine, the work ratio is the ratio of Actual compressor work and theoretical compressor work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Compressor work and turbine work Output and input Actual compressor work and theoretical compressor work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Compressor work and turbine work Output and input ANSWER DOWNLOAD EXAMIANS APP
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