Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 1050 km/hr 1700 km/hr 2400 km/hr 550 km/hr 1050 km/hr 1700 km/hr 2400 km/hr 550 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature 0.05 0.005 0.01 0.001 0.05 0.005 0.01 0.001 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as Compressor efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency Compressor efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Work ratio of a gas turbine may be improved by Both (A) and (C) above Decreasing the compression work Increasing the compression work Increasing the turbine work Both (A) and (C) above Decreasing the compression work Increasing the compression work Increasing the turbine work 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? 18 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 6 m³/ mt. 18 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 6 m³/ mt. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. One sixth Same One-half One fourth One sixth Same One-half One fourth ANSWER DOWNLOAD EXAMIANS APP