Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 7: 1 15: 1 50: 1. 30: 1 7: 1 15: 1 50: 1. 30: 1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of compressor with increase in compression ratio will Remain same Increase May increase or decrease depending on clearance volume Decrease Remain same Increase May increase or decrease depending on clearance volume Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the 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 Isothermal H.P/indicated H.R Compression work/motor input Total output/air input ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In air breathing jet engine, the jet is formed by expanding Liquid Highly heated atmospheric air Plasma Solids Liquid Highly heated atmospheric air Plasma Solids ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate Decreases Remain constant First decreases and then increases Increases Decreases Remain constant First decreases and then increases Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Zero Increased Reduced None of these Zero Increased Reduced None of these ANSWER DOWNLOAD EXAMIANS APP
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