Compressors, Gas Turbines and Jet Engines In which case the air-fuel ratio is likely to be maximum? Multi cylinder engine 4-stroke petrol engine 4-stroke diesel engine Gas turbine Multi cylinder engine 4-stroke petrol engine 4-stroke diesel engine Gas turbine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the Compression work/motor input Total output/air input Isothermal H.P/indicated H.R Isothermal H.P./shaft H.R Compression work/motor input Total output/air input Isothermal H.P/indicated H.R Isothermal H.P./shaft H.R ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure) p₁/p₂ p₁ p₂ (p₁ - p₂)/2 (p₁ + p₂)/2 p₁/p₂ p₁ p₂ (p₁ - p₂)/2 (p₁ + p₂)/2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is Lower Can't be compared Higher Equal Lower Can't be compared Higher Equal ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The blades of gas turbine are made of Stainless steel High nickel alloy Carbon steel High alloy steel Stainless steel High nickel alloy Carbon steel High alloy steel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means Reducing mass flow rate with increase in pressure ratio Increased inclination of chord with air steam No flow of air Fixed mass flow rate regardless of pressure ratio Reducing mass flow rate with increase in pressure ratio Increased inclination of chord with air steam No flow of air Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP
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