Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source of high temperature air The atmosphere A source at 0° C A source of low temperature air A source of high temperature air The atmosphere A source at 0° C A source of low temperature air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum work is done in compressing air when the compression is None of these Polytropic Adiabatic Isothermal None of these Polytropic Adiabatic Isothermal 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 Slip factor None of these Velocity coefficient Velocity factor Slip factor None of these Velocity coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which is false statement about advantages of multistage compressor in comparison to single stage compressor? Lower volumetric efficiency Less power requirement Less loss of air due to leakage past the cylinder Better mechanical balance Lower volumetric efficiency Less power requirement Less loss of air due to leakage past the cylinder Better mechanical balance ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches Isochoric Isentropic Isothermal Adiabatic Isochoric Isentropic Isothermal Adiabatic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as Slip factor Work factor Pressure coefficient Degree of reaction Slip factor Work factor Pressure coefficient Degree of reaction ANSWER DOWNLOAD EXAMIANS APP
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