Compressors, Gas Turbines and Jet Engines A simple turbojet engine is basically Ramjet engine Chemical rocket engine Gas turbine engine equipped with a propulsive nozzle and diffuse A propeller system Ramjet engine Chemical rocket engine Gas turbine engine equipped with a propulsive nozzle and diffuse A propeller system ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would None of these Increase Remain same Decrease None of these Increase Remain same Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The working fluid in a turbine is In the form of air and water mixture In three phases In two phases In a single phase In the form of air and water mixture In three phases In two phases In a single phase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is All of these Higher volumetric efficiency Lower power consumption per unit of air delivered Decreased discharge temperature All of these Higher volumetric efficiency Lower power consumption per unit of air delivered Decreased discharge temperature ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by p₂ = (p₁ + p₃)/2 p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = p₁. p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine. Higher Lower Same None of these Higher Lower Same None of these ANSWER DOWNLOAD EXAMIANS APP
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