Compressors, Gas Turbines and Jet Engines A rocket engine uses __________ for the combustion of its fuel. Surrounding air None of these Its own oxygen Compressed atmospheric air Surrounding air None of these Its own oxygen Compressed atmospheric air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Surging is the phenomenon of Air stream not able to follow the blade contour Motion of air at sonic velocity Air stream blocking the passage Unsteady, periodic and reversed flow Air stream not able to follow the blade contour Motion of air at sonic velocity Air stream blocking the passage Unsteady, periodic and reversed flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source of low temperature air The atmosphere A source of high temperature air A source at 0° C A source of low temperature air The atmosphere A source of high temperature air A source at 0° C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity) (v₁ - v₂)²/2g (v₁ - v₂)²/g (v₁² -v₂²)/2g (v₁² -v₂²)/g (v₁ - v₂)²/2g (v₁ - v₂)²/g (v₁² -v₂²)/2g (v₁² -v₂²)/g ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Depending on the velocity Opposite to the direction of motion of blades In the direction of motion of blades Equal to zero Depending on the velocity Opposite to the direction of motion of blades In the direction of motion of blades Equal to zero ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The capacity of a compressor is expressed in kg/m³ kg/m² m³/min m³/kg kg/m³ kg/m² m³/min m³/kg ANSWER DOWNLOAD EXAMIANS APP
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