Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. One-half One sixth Same One fourth One-half One sixth Same One fourth 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 Average of the jet velocity Half the jet velocity Twice the jet velocity Jet velocity Average of the jet velocity Half the jet velocity Twice the jet velocity Jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Work to compress air isothermally to work for actual compression Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Isothermal h.p. to the BHP of motor Work to compress air isothermally to work for actual compression Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Isothermal h.p. to the BHP of motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Expansion ratio Compressor efficiency Volumetric efficiency Compression ratio Expansion ratio Compressor efficiency Volumetric efficiency Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For speed above 3000 km/hour, it is more advantageous to use Propellers Turbojet engine Rockets Ramjet engine Propellers Turbojet engine Rockets Ramjet engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thrust of a jet propulsion power unit can be increased by All of these Injecting water into the compressor Injecting ammonia into the combustion chamber Burning fuel after gas turbine All of these Injecting water into the compressor Injecting ammonia into the combustion chamber Burning fuel after gas turbine ANSWER DOWNLOAD EXAMIANS APP
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