Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Increase flue gas temperature Economize on fuel Extract heat from the exhaust flue gases Increase thermal efficiency of boiler Increase flue gas temperature Economize on fuel Extract heat from the exhaust flue gases Increase thermal efficiency of boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of a cylindrical shell of a Scotch marine boiler varies from 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 3.5 to 4.5 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Locomotive type' boiler is Horizontal multi-tubular fire tube type Horizontal multi-tubular water tube boiler Vertical tubular fire tube type Water wall enclosed furnace type Horizontal multi-tubular fire tube type Horizontal multi-tubular water tube boiler Vertical tubular fire tube type Water wall enclosed furnace type ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam exhaust from high pressure turbine is reheated in Boiler drums Economizer Superheater tubes A separate coil located in convection path Boiler drums Economizer Superheater tubes A separate coil located in convection path ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 5000-8000 kcal/ kg 2000-4000 kcal/ kg 200-400 kcal/ kg 800-1200 kcal/ kg 5000-8000 kcal/ kg 2000-4000 kcal/ kg 200-400 kcal/ kg 800-1200 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Thermal efficiency of well maintained boiler will be of the order 0.4 0.5 0.9 0.75 0.4 0.5 0.9 0.75 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS