Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would Remain same Increase None of these Decrease Remain same Increase None of these Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling. None of these Equal to Less than More than None of these Equal to Less than More than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt? 1.5 m³/ mt. 18 m³/ mt. 3 m³/ mt. 6 m³/ mt. 1.5 m³/ mt. 18 m³/ mt. 3 m³/ mt. 6 m³/ mt. 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 V = Uo Vi = Vo Vt > Vo U < Vo V = Uo Vi = Vo Vt > Vo U < Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches Isochoric Isothermal Adiabatic Isentropic Isochoric Isothermal Adiabatic Isentropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The absolute pressure of air at the outlet of a compressor is called Back pressure None of the listed here Critical pressure Discharge pressure Back pressure None of the listed here Critical pressure Discharge pressure ANSWER DOWNLOAD EXAMIANS APP
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