Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 200-400 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 800-1200 kcal/ kg 200-400 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 800-1200 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler stays are used to Take care of failure in compression Prevent flat surfaces under pressure from tearing apart Provide support for boiler Take care of failure in shear Take care of failure in compression Prevent flat surfaces under pressure from tearing apart Provide support for boiler Take care of failure in shear ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a velocity compounded impulse turbine, when steam flows through the second row of moving blades, Velocity decreases Pressure remains constant Velocity remains constant Velocity increases Velocity decreases Pressure remains constant Velocity remains constant Velocity increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure. 8 times 2 times Same as 4 times 8 times 2 times Same as 4 times ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Pulverized fuel is used for Less radiation loss More calorific value Medium sized units Better burning Less radiation loss More calorific value Medium sized units Better burning ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The behavior of coal in a furnace is determined by The content of ash and heating value The content of sulphur The exact analysis The proximate analysis The content of ash and heating value The content of sulphur The exact analysis The proximate analysis ANSWER DOWNLOAD EXAMIANS APP
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