Compressors, Gas Turbines and Jet Engines The maximum combustion pressure in gas turbine as compared to I.C. engine is More Less Same Depends on other factors More Less Same Depends on other factors ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor performance at higher altitude compared to sea level will be Dependent on other factors Same Higher Lower Dependent on other factors Same Higher Lower ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Turbofan engine employs No air stream One air stream Two or more air streams Solid fuel firing No air stream One air stream Two or more air streams Solid fuel firing ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity U < Vo Vt > Vo V = Uo Vi = Vo U < Vo Vt > Vo V = Uo Vi = Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine for the combustion of its fuel Carries its own oxygen Uses surrounding air Uses compressed atmospheric air Does not require oxygen Carries its own oxygen Uses surrounding air Uses compressed atmospheric air Does not require oxygen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS