Steam Boilers, Engines, Nozzles and Turbines The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called Forced draught Induced draught Balanced draught Natural draught Forced draught Induced draught Balanced draught Natural draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about effect of sulphur in fuel? It erodes furnace walls It has heating value It helps in electrostatic precipitation of ash in flue gases It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low It erodes furnace walls It has heating value It helps in electrostatic precipitation of ash in flue gases It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At very low temperature, the melting and boiling temperatures become equal. This temperature is 303°K 273.16°K 0°K 373°K 303°K 273.16°K 0°K 373°K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle increases continuously from entrance to exit, it is called a None of these Convergent nozzle Convergent-divergent nozzle Divergent nozzle None of these Convergent nozzle Convergent-divergent nozzle Divergent nozzle ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The rate of steam produced in Benson boiler is 175 tonnes/h 100 tonnes/h 135 tonnes/h 250 tonnes/h 175 tonnes/h 100 tonnes/h 135 tonnes/h 250 tonnes/h ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser in a boiler Decreases steam pressure Increases steam flow Increases steam pressure Decreases fuel consumption Decreases steam pressure Increases steam flow Increases steam pressure Decreases fuel consumption ANSWER DOWNLOAD EXAMIANS APP
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