Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.75 0.85 0.99 0.9 0.75 0.85 0.99 0.9 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called Velocity factor Velocity coefficient Slip factor None of these Velocity factor Velocity coefficient Slip factor None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would Increase Remain same Decrease None of these Increase Remain same Decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the flow of air is ________ to the axis of compressor. Perpendicular Parallel None of these Inclined Perpendicular Parallel None of these Inclined ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight Low weight and small frontal area Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight Low weight and small frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction is usually kept ________ for all types of axial flow compressors. 0.4 0.2 0.5 0.3 0.4 0.2 0.5 0.3 ANSWER DOWNLOAD EXAMIANS APP
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