Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The type of rotary compressor used in gas turbines, is of None of the listed here Radial flow type Axial flow type Centrifugal type None of the listed here Radial flow type Axial flow type Centrifugal type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air is delivered ________ in one revolution in case of a three lobbed rotor. Two times Six times Four times Three times Two times Six times Four times Three times 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 Reheating in a multistage expansion gas turbine ________ compressor work. Has no effect on Increases None of these Decreases Has no effect on Increases None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum combustion pressure in gas turbine as compared to I.C. engine is Less More Depends on other factors Same Less More Depends on other factors Same ANSWER DOWNLOAD EXAMIANS APP
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