Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Higher at high altitudes Higher at high speed Lower at low speed Same at all altitudes Higher at high altitudes Higher at high speed Lower at low speed Same at all altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressed air may be used For operating pneumatic drills All of the listed here In gas turbine plants In starting and supercharging of I.C. engines For operating pneumatic drills All of the listed here In gas turbine plants In starting and supercharging of I.C. engines 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 Increases Remain constant First decreases and then increases Decreases Increases Remain constant First decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Work ratio of a gas turbine may be improved by Increasing the compression work Both (A) and (C) above Decreasing the compression work Increasing the turbine work Increasing the compression work Both (A) and (C) above Decreasing the compression work Increasing the turbine work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following fuels can be used in turbojet engines? Liquid hydrogen Methyl alcohol Kerosene High speed diesel oil Liquid hydrogen Methyl alcohol Kerosene High speed diesel oil 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
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