Steam Boilers, Engines, Nozzles and Turbines In regenerative air preheaters, the heat is transferred Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material By direct mixing Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material By direct mixing ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is a fire tube boiler? Babcock and Wilcox boiler Lancashire boiler None of these Yarrow boiler Babcock and Wilcox boiler Lancashire boiler None of these Yarrow boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, pā) will be 5.46 bar 3.3 bar 8.2 bar 9.9 bar 5.46 bar 3.3 bar 8.2 bar 9.9 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of heat utilized to produce steam and the heat liberated in furnace is known as Factor of evaporation Boiler efficiency Boiler evaporative capacity Boiler effectiveness Factor of evaporation Boiler efficiency Boiler evaporative capacity Boiler effectiveness ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which Burn freely Show little or no fusing action Burn completely Form lumps or masses of coke Burn freely Show little or no fusing action Burn completely Form lumps or masses of coke 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 Convergent nozzle None of these Convergent-divergent nozzle Divergent nozzle Convergent nozzle None of these Convergent-divergent nozzle Divergent nozzle ANSWER DOWNLOAD EXAMIANS APP
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