Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 550 km/hr 1700 km/hr 1050 km/hr 2400 km/hr 550 km/hr 1700 km/hr 1050 km/hr 2400 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the Thrust and range of aircraft None of these Both (A) and (B) Efficiency of the engine Thrust and range of aircraft None of these Both (A) and (B) Efficiency of the engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An ideal air compressor cycle with clearance on P-V diagram can be represented by following processes One adiabatic, one isobaric and two constant volumes Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, two isobaric, and one constant volume One adiabatic, one isobaric and two constant volumes Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, two isobaric, and one constant volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor decreases with ________ in compression ratio. Increase Remain same Does not change Decrease Increase Remain same Does not change Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermodynamic efficiency of rotary compressor is based on Adiabatic compression Isentropic compression Polytropic compression Isothermal compression Adiabatic compression Isentropic compression Polytropic compression Isothermal compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air delivered in a medium capacity air compressor per unit time is 0.1 to 1.2 m³/s 0.15 to 5 m³/s Above 5 m³/s None of these 0.1 to 1.2 m³/s 0.15 to 5 m³/s Above 5 m³/s None of these ANSWER DOWNLOAD EXAMIANS APP
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