Compressors, Gas Turbines and Jet Engines The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity) (v₁² -v₂²)/g (v₁ - v₂)²/g (v₁ - v₂)²/2g (v₁² -v₂²)/2g (v₁² -v₂²)/g (v₁ - v₂)²/g (v₁ - v₂)²/2g (v₁² -v₂²)/2g ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of air compressors is of the order of 40 - 50% 20 - 30% 70 - 90% 60 - 70% 40 - 50% 20 - 30% 70 - 90% 60 - 70% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is Lower None of these Higher Same Lower None of these Higher Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter-cooling in gas turbine results in Decrease in both thermal efficiency and net output Increase in net output but decrease in thermal efficiency Increase in thermal efficiency but decrease in net output Increase in both thermal efficiency and net output Decrease in both thermal efficiency and net output Increase in net output but decrease in thermal efficiency Increase in thermal efficiency but decrease in net output Increase in both thermal efficiency and net output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For minimum work required to compress and deliver a quantity of air by multistage compression The work-done in each stage should be same The intercooling should be perfect All of the listed here The compression ratio in each stage should be same The work-done in each stage should be same The intercooling should be perfect All of the listed here The compression ratio in each stage should be same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt? 1.5 m³/ mt. 3 m³/ mt. 6 m³/ mt. 18 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 6 m³/ mt. 18 m³/ mt. ANSWER DOWNLOAD EXAMIANS APP
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