Compressors, Gas Turbines and Jet Engines Pressure ratio in gas turbines is the ratio of Pressures across the turbine Highest pressure to exhaust pressure Compressor pressure ratio Inlet pressure to exhaust pressure Pressures across the turbine Highest pressure to exhaust pressure Compressor pressure ratio Inlet pressure to exhaust pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Mechanical efficiency Volumetric efficiency Isothermal efficiency Adiabatic efficiency Mechanical efficiency Volumetric efficiency Isothermal efficiency Adiabatic efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Adiabatic compression is one in which Work done is maximum No heat leaves or enters the compressor cylinder during compression Temperature during compression remains constant Temperature rise follows a linear relationship Work done is maximum No heat leaves or enters the compressor cylinder during compression Temperature during compression remains constant Temperature rise follows a linear relationship 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 May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio Is not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor. Inlet whirl velocity Outlet whirl velocity Inlet velocity of flow Outlet velocity of flow Inlet whirl velocity Outlet whirl velocity Inlet velocity of flow Outlet velocity of flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the correct statement Gas turbines use both air and liquid cooling Gas turbines have their blades similar to steam turbine Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Large gas turbines use radial inflow turbines Gas turbines use both air and liquid cooling Gas turbines have their blades similar to steam turbine Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Large gas turbines use radial inflow turbines ANSWER DOWNLOAD EXAMIANS APP
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