Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 30: 1 50: 1. 15: 1 7: 1 30: 1 50: 1. 15: 1 7: 1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For an irreversible gas turbine cycle, the efficiency and work ratio both depend on Pressure ratio alone Maximum cycle temperature alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone Pressure ratio alone Maximum cycle temperature alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The main purpose of reheating in gas turbine is to Increase speed Increase temperature Increase power output Reduce turbine size Increase speed Increase temperature Increase power output Reduce turbine size 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)/2 (p₁ - p₂)/2 p₁/p₂ p₁ p₂ (p₁ + p₂)/2 (p₁ - p₂)/2 p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Increases the thermal efficiency Decreases the thermal efficiency Increases the turbine work Increases the compressor work Increases the thermal efficiency Decreases the thermal efficiency Increases the turbine work Increases the compressor work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of None of the listed here High pressure rise Higher thrust Low frontal area None of the listed here High pressure rise Higher thrust Low frontal area ANSWER DOWNLOAD EXAMIANS APP
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