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 (v₁² -v₂²)/g (v₁ - v₂)²/g (v₁² -v₂²)/2g (v₁ - v₂)²/2g (v₁² -v₂²)/g (v₁ - v₂)²/g (v₁² -v₂²)/2g ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction is usually kept ________ for all types of axial flow compressors. 0.4 0.2 0.3 0.5 0.4 0.2 0.3 0.5 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Increases power output Do not damage turbine blades Improves thermal efficiency Reduces exhaust temperature Increases power output Do not damage turbine blades Improves thermal efficiency Reduces exhaust temperature ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Small frontal area and high h.p. High h.p. and low weight Low weight and small frontal area High speed and high h.p. Small frontal area and high h.p. High h.p. and low weight Low weight and small frontal area High speed and high h.p. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of High pressure rise Low frontal area Higher thrust None of the listed here High pressure rise Low frontal area Higher thrust None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Out of the following, from where you will prefer to take intake for air compressor From a side where cooling tower is located nearby From an air conditioned room maintained at 20°C From coal yard side From outside atmosphere at 1°C From a side where cooling tower is located nearby From an air conditioned room maintained at 20°C From coal yard side From outside atmosphere at 1°C ANSWER DOWNLOAD EXAMIANS APP
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