Compressors, Gas Turbines and Jet Engines For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will Increase Remain unaffected Decrease Other factors control it Increase Remain unaffected Decrease Other factors control it ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up wrong statement. Surging phenomenon in centrifugal compressor depends on Stagnation pressure at the outlet Mass flow rate Pressure ratio Change in load Stagnation pressure at the outlet Mass flow rate Pressure ratio Change in load 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 In a high pressure compressor, the delivery pressure is 8 to 10 bar 5 to 8 bar 1 to 5 bar 10 to 15 bar 8 to 10 bar 5 to 8 bar 1 to 5 bar 10 to 15 bar ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, an increase in speed at a given pressure ratio causes Increase in efficiency Increase in flow and decrease in efficiency Increase in flow Decrease in flow Increase in efficiency Increase in flow and decrease in efficiency Increase in flow Decrease in flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Rotor to static enthalpy rise in the stage Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Stator to static enthalpy rise in the rotor Rotor to static enthalpy rise in the stage Stator to static enthalpy rise in the stage ANSWER DOWNLOAD EXAMIANS APP
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