Compressors, Gas Turbines and Jet Engines Surging is the phenomenon of Air stream not able to follow the blade contour Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow Air stream not able to follow the blade contour Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter-cooling in gas turbine results in Increase in net output but decrease in thermal efficiency Increase in both thermal efficiency and net output Decrease in both thermal efficiency and net output Increase in thermal efficiency but decrease in net output Increase in net output but decrease in thermal efficiency Increase in both thermal efficiency and net output Decrease in both thermal efficiency and net output Increase in thermal efficiency but decrease in net output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be 256 bar 64 bar 16 bar 1 bar 256 bar 64 bar 16 bar 1 bar ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Cylinder clearance in a compressor should be About 100% of swept volume About 50% of swept volume As large as possible As small as possible About 100% of swept volume About 50% of swept volume As large as possible As small as possible ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For speed above 3000 km/hour, it is more advantageous to use Turbojet engine Ramjet engine Propellers Rockets Turbojet engine Ramjet engine Propellers Rockets ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler’s work is known as Compressor efficiency Isentropic efficiency Pressure coefficient Euler Compressor efficiency Isentropic efficiency Pressure coefficient Euler ANSWER DOWNLOAD EXAMIANS APP
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