Compressors, Gas Turbines and Jet Engines The thermodynamic efficiency of rotary compressor is based on Isothermal compression Isentropic compression Polytropic compression Adiabatic compression Isothermal compression Isentropic compression Polytropic compression Adiabatic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Petrol engine Diesel engine C. electric motor Compressed air Petrol engine Diesel engine C. electric motor Compressed air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct relating to rocket engines? The stagnation conditions exist at the combustion chamber The exit velocities of exhaust gases are much higher than those in jet engine All of these The combustion chamber in a rocket engine is directly analogous to the reservoir of a supersonic wind tunnel The stagnation conditions exist at the combustion chamber The exit velocities of exhaust gases are much higher than those in jet engine All of these The combustion chamber in a rocket engine is directly analogous to the reservoir of a supersonic wind tunnel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket works with maximum overall efficiency when air craft velocity is equal to the Jet velocity Twice the jet velocity Half the jet velocity Average of the jet velocity Jet velocity Twice the jet velocity Half the jet velocity Average of the jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine uses __________ for the combustion of its fuel. Compressed atmospheric air Surrounding air None of these Its own oxygen Compressed atmospheric air Surrounding air None of these Its own oxygen ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work-done per cycle to the stroke volume of the compressor is known as Compression ratio Mean effective pressure Compressor capacity Compressor efficiency Compression ratio Mean effective pressure Compressor capacity Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
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