Steam Boilers, Engines, Nozzles and Turbines The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 30 to 40% 10 to 15% 15 to 20% 20 to 30% 30 to 40% 10 to 15% 15 to 20% 20 to 30% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Efficiency of the boiler Power of the boiler Efficiency of the fan Efficiency of the chimney Efficiency of the boiler Power of the boiler Efficiency of the fan Efficiency of the chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Supply of excess, air Supply of excess coal Fuel bed firing Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess, air Supply of excess coal Fuel bed firing Burning CO and unburnt in upper zone of furnace by supplying more air ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure compounded impulse turbine as compared to velocity compounded turbine require __________ number of stages. Same None of these More Less Same None of these More Less ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The discharge is __________ at critical pressure. Maximum Minimum None of these Zero Maximum Minimum None of these Zero ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In locomotives, the draught is produced by Both combined (A) and (B) Induced draft fan Chimney Steam jet draught Both combined (A) and (B) Induced draft fan Chimney Steam jet draught ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS