Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The impeller rotates at high speeds The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The impeller rotates at high speeds 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 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 The ratio of the net work obtained from the gas turbine plant to the turbine work is known as Compression ratio None of these Pressure ratio Work ratio Compression ratio None of these Pressure ratio Work ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Work ratio of a gas turbine plant is ratio of Work done by turbine and heat supplied Net work output and work done by turbine Net work output and heat supplied Work done by turbine and net work output Work done by turbine and heat supplied Net work output and work done by turbine Net work output and heat supplied Work done by turbine and net work output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter-cooling in multistage compressors is done To minimize the work of compression To cool the air during compression To cool the air at delivery To enable compression in two stages To minimize the work of compression To cool the air during compression To cool the air at delivery To enable compression in two stages ANSWER DOWNLOAD EXAMIANS APP
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