Steam Boilers, Engines, Nozzles and Turbines The theoretical indicator diagram of a simple steam engine is based upon the assumption that There is no pressure drop due to condensation The expansion (or compression) of the steam is hyperbolic All of these Steam is admitted at boiler pressure and exhausted at condenser pressure There is no pressure drop due to condensation The expansion (or compression) of the steam is hyperbolic All of these Steam is admitted at boiler pressure and exhausted at condenser pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of a cylindrical shell of a Scotch marine boiler varies from 3.5 to 4.5 m 2.5 to 3.5 m None of these 1.5 to 2 m 3.5 to 4.5 m 2.5 to 3.5 m None of these 1.5 to 2 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the work-done on the blades per kg of steam to the total energy supplied per stage per kg of steam is called Mechanical efficiency Blading efficiency Nozzle efficiency Stage efficiency Mechanical efficiency Blading efficiency Nozzle efficiency Stage efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are limited to a maximum design working pressure of 100 kg/cm² 6 kg/cm 1 kg/cm 17 kg/cm² 100 kg/cm² 6 kg/cm 1 kg/cm 17 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit. Fusible plug Stop valve Blow off cock Safety valve Fusible plug Stop valve Blow off cock Safety valve ANSWER DOWNLOAD EXAMIANS APP
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