Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser is installed in a boiler primarily to All of the listed here Increase steam pressure Superheat the steam Reduce fuel consumption All of the listed here Increase steam pressure Superheat the steam Reduce fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about effect of sulphur in fuel? It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low It has heating value It helps in electrostatic precipitation of ash in flue gases It erodes furnace walls It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low It has heating value It helps in electrostatic precipitation of ash in flue gases It erodes furnace walls ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Size of boiler tubes is specified by Outside diameter and inside diameter Outside diameter and thickness Mean diameter and thickness Inside diameter and thickness Outside diameter and inside diameter Outside diameter and thickness Mean diameter and thickness Inside diameter and thickness ANSWER DOWNLOAD EXAMIANS APP
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. 40°C 0°C 100°C 60°C 40°C 0°C 100°C 60°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required. Less None of the listed here More Equal Less None of the listed here More Equal ANSWER DOWNLOAD EXAMIANS APP
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