Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 550 km/hr 2400 km/hr 1700 km/hr 1050 km/hr 550 km/hr 2400 km/hr 1700 km/hr 1050 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation 0.5% 0.1% 5% 1.0% 0.5% 0.1% 5% 1.0% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine is Less More May be less or more depending on ambient conditions Same Less More May be less or more depending on ambient conditions Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio Decreases First increases and then decreases First decreases and then increases Increases Decreases First increases and then decreases First decreases and then increases Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Adiabatic compression is one in which Work done is maximum Temperature during compression remains constant No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship Work done is maximum Temperature during compression remains constant No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A centrifugal compressor works on the principle of Centripetal action Generating pressure directly Conversion of kinetic energy into pressure energy Conversion of pressure energy into kinetic energy Centripetal action Generating pressure directly Conversion of kinetic energy into pressure energy Conversion of pressure energy into kinetic energy ANSWER DOWNLOAD EXAMIANS APP
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