Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor decreases with ________ in compression ratio. Increase Decrease Does not change Remain same Increase Decrease Does not change Remain same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An after-cooler is used to Remove impurities from air Cause moisture and oil vapour to drop out Cool the air Reduce volume of air Remove impurities from air Cause moisture and oil vapour to drop out Cool the air Reduce volume of air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Compression of inlet air Increasing speed of incoming air Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy Compression of inlet air Increasing speed of incoming air Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of Increasing gas temperature High friction losses Paucity of O2 High specific volume Increasing gas temperature High friction losses Paucity of O2 High specific volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet propulsion power unit, the inlet duct of diverging shape is used in order to Provide robust structure Beautify the shape Convert kinetic energy of air into pressure energy Collect more air Provide robust structure Beautify the shape Convert kinetic energy of air into pressure energy Collect more air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler work is known as Work coefficient Slip factor Polytropic reaction Pressure coefficient Work coefficient Slip factor Polytropic reaction Pressure coefficient ANSWER DOWNLOAD EXAMIANS APP
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