Compressors, Gas Turbines and Jet Engines Maximum delivery pressure is a rotary air compressor is of the order of 16 kg/cm² 10 kg/cm² 25 kg/cm² 6 kg/cm² 16 kg/cm² 10 kg/cm² 25 kg/cm² 6 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following property is most important for material used for gas turbine blade Fatigue Corrosion resistance Creep Toughness Fatigue Corrosion resistance Creep Toughness ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity Vi = Vo U < Vo Vt > Vo V = Uo Vi = Vo U < Vo Vt > Vo V = Uo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Ease of atomisation High calorific value Both (A) and (C) above Low freezing point Ease of atomisation High calorific value Both (A) and (C) above Low freezing point ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The assumption made in two stage compression with inter-cooler is that 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 All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at Impeller outlet radius Impeller inlet radius Diffuser outlet radius Diffuser inlet radius Impeller outlet radius Impeller inlet radius Diffuser outlet radius Diffuser inlet radius ANSWER DOWNLOAD EXAMIANS APP
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