Compressors, Gas Turbines and Jet Engines The assumption made in two stage compression with inter-cooler is that All of the listed here The compression in both the cylinders is polytropic The suction and delivery of air takes place at constant pressure There is no pressure drop in the inter-cooler All of the listed here The compression in both the cylinders is polytropic The suction and delivery of air takes place at constant pressure There is no pressure drop in the inter-cooler ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in Decrease of heat loss in exhaust Reduction in compressor work Maximum work output High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output High thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.99 0.85 0.9 0.75 0.99 0.85 0.9 0.75 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine for the combustion of its fuel Uses compressed atmospheric air Does not require oxygen Uses surrounding air Carries its own oxygen Uses compressed atmospheric air Does not require oxygen Uses surrounding air Carries its own oxygen ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A compressor at high altitudes will require ___ power. Same None of the listed here Less More Same None of the listed here Less More 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 p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 ANSWER DOWNLOAD EXAMIANS APP
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