Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isothermal compression Isentropic compression None of the listed here Polytropic compression Isothermal compression Isentropic compression None of the listed here Polytropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume Increases with increase in compression ratio Is not dependent upon compression ratio Decreases with increase in compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Is not dependent upon compression ratio Decreases with increase in compression ratio May increase/decrease depending on compressor capacity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a multistage expansion gas turbine ________ compressor work. Decreases None of these Increases Has no effect on Decreases None of these Increases Has no effect on ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Increasing speed of incoming air Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Increasing speed of incoming air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency is Index of compressor performance The ratio of the air actually delivered to the amount of piston displacement Reciprocal of compression ratio The ratio of stroke volume to clearance volume Index of compressor performance The ratio of the air actually delivered to the amount of piston displacement Reciprocal of compression ratio The ratio of stroke volume to clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine for the combustion of its fuel Does not require oxygen Uses compressed atmospheric air Uses surrounding air Carries its own oxygen Does not require oxygen Uses compressed atmospheric air Uses surrounding air Carries its own oxygen ANSWER DOWNLOAD EXAMIANS APP
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