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 The indicated thermal efficiency is defined as the Ratio of brake power to the indicated power Ratio of thermal efficiency to the Rankine efficiency Product of thermal efficiency and Rankine efficiency Ratio of heat equivalent to indicated power to the energy supplied in steam Ratio of brake power to the indicated power Ratio of thermal efficiency to the Rankine efficiency Product of thermal efficiency and Rankine efficiency Ratio of heat equivalent to indicated power to the energy supplied in steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following boilers is best suited to meet fluctuating demands? Lancashire Locomotive Cochran Babcock and Wilcox Lancashire Locomotive Cochran Babcock and Wilcox ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the moving blades, Pressure increases while velocity decreases Pressure decreases while velocity increases Pressure and velocity both decreases Pressure and velocity both increases Pressure increases while velocity decreases Pressure decreases while velocity increases Pressure and velocity both decreases Pressure and velocity both increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Thermal efficiency of well maintained boiler will be of the order 0.5 0.75 0.9 0.4 0.5 0.75 0.9 0.4 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Primary air is the air used to Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion Air delivered by forced draft fan Transport and dry the coal Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion Air delivered by forced draft fan Transport and dry the coal ANSWER DOWNLOAD EXAMIANS APP
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