Steam Boilers, Engines, Nozzles and Turbines The compounding of turbines is done in order to Reduce exit losses Reduce speed of rotor Improve efficiency All of these Reduce exit losses Reduce speed of rotor Improve efficiency All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A steam nozzle converts Potential energy into heat energy of steam Heat energy of steam into potential energy Kinetic energy into heat energy of steam Heat energy of steam into kinetic energy Potential energy into heat energy of steam Heat energy of steam into potential energy Kinetic energy into heat energy of steam Heat energy of steam into kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α Vb = V² cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The major axis of elliptical manholes on the shell should be provided Anywhere Circumferentially On dished end Longitudinally Anywhere Circumferentially On dished end Longitudinally ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A safety valve mainly used with locomotive and marine boilers is Lever safety valve Dead weight safety valve Spring loaded safety valve High steam and low water safety valve Lever safety valve Dead weight safety valve Spring loaded safety valve High steam and low water safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Fuel bed firing Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess coal Fuel bed firing Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess coal ANSWER DOWNLOAD EXAMIANS APP
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