Steam Boilers, Engines, Nozzles and Turbines The amount of water evaporated from feed water at _________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C. 100°C 40°C 60°C 0°C 100°C 40°C 60°C 0°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The bituminous coal is no caking if its carbon content is 85-90% 81-85% 90-95% 78-81% 85-90% 81-85% 90-95% 78-81% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of Raising of steam temperature Fouling of heat transfer surfaces Higher effectiveness of boiler High calorific value coal being burnt Raising of steam temperature Fouling of heat transfer surfaces Higher effectiveness of boiler High calorific value coal being burnt ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In reaction turbines, the axial thrust is due to Pressure drop across the rotor Change in axial velocity None of these Both (A) and (B) Pressure drop across the rotor Change in axial velocity None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Blading efficiency Gross or stage efficiency Nozzle efficiency Mechanical efficiency Blading efficiency Gross or stage efficiency Nozzle efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The expansion of steam, as it flows over the blades in reaction turbine, represents Isentropic process Throttling process Free expansion process Isothermal process Isentropic process Throttling process Free expansion process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
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