Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 550 km/hr 1050 km/hr 2400 km/hr 1700 km/hr 550 km/hr 1050 km/hr 2400 km/hr 1700 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the Isothermal H.P/indicated H.R Compression work/motor input Total output/air input Isothermal H.P./shaft H.R Isothermal H.P/indicated H.R Compression work/motor input Total output/air input Isothermal H.P./shaft H.R ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Losses in a centrifugal compressor are due to Impeller channel losses Diffuser losses All of the listed here Inlet losses Impeller channel losses Diffuser losses All of the listed here Inlet losses ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression though most efficient, but is not practicable because It does not increase pressure much It is impossible in practice It requires very big cylinder Compressor has to run at very slow speed to achieve it It does not increase pressure much It is impossible in practice It requires very big cylinder Compressor has to run at very slow speed to achieve it ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency is Index of compressor performance The ratio of stroke volume to clearance volume Reciprocal of compression ratio The ratio of the air actually delivered to the amount of piston displacement Index of compressor performance The ratio of stroke volume to clearance volume Reciprocal of compression ratio The ratio of the air actually delivered to the amount of piston displacement ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In which case the air-fuel ratio is likely to be maximum? 4-stroke diesel engine 4-stroke petrol engine Gas turbine Multi cylinder engine 4-stroke diesel engine 4-stroke petrol engine Gas turbine Multi cylinder engine ANSWER DOWNLOAD EXAMIANS APP
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