Compressors, Gas Turbines and Jet Engines The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stage Stator to static enthalpy rise in the rotor Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stage Stator to static enthalpy rise in the rotor 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 V = Uo U < Vo Vi = Vo Vt > Vo V = Uo U < Vo Vi = Vo Vt > Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be Radial Forward curved Backward curved None of the listed here Radial Forward curved Backward curved None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air entry velocity m a rocket as compared to aircraft is Zero Less Same More Zero Less Same More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Is self operating at zero flight speed Is not self operating at zero flight speed Produces a jet consisting of plasma Requires no air for its operation Is self operating at zero flight speed Is not self operating at zero flight speed Produces a jet consisting of plasma Requires no air for its operation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency and work ratio of a gas turbine plant can be increased by Injecting water in/around combustion chamber All of these Adding heat exchanger Reheating the air after partial expansion in the turbine Injecting water in/around combustion chamber All of these Adding heat exchanger Reheating the air after partial expansion in the turbine ANSWER DOWNLOAD EXAMIANS APP
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