Furnace Technology Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing? Ash disposal problem Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation Ash disposal problem Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Reducing atmosphere is maintained in a Soaking pit Blast furnace L.D. converter Calcination kiln Soaking pit Blast furnace L.D. converter Calcination kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace? Ceramic recuperator Waste heat boiler Regenerator Economiser Ceramic recuperator Waste heat boiler Regenerator Economiser ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by Radiation Can not be predicted Conduction Convection Radiation Can not be predicted Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the All of these Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature Burner design (thoroughness of mixing versus stratification) All of these Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature Burner design (thoroughness of mixing versus stratification) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Premix Outside mixing type Rotary Diffusion Premix Outside mixing type Rotary Diffusion ANSWER DOWNLOAD EXAMIANS APP
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