Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? Increase in flame temperature Reduction in scale losses Increase in calorific value of the fuel Saving in fuel consumption Increase in flame temperature Reduction in scale losses Increase in calorific value of the fuel Saving in fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are used for waste heat recovery in Beehive coke oven By-product coke ovens Blast furnace stoves Soaking pits Beehive coke oven By-product coke ovens Blast furnace stoves Soaking pits ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Specific heating capacity of a furnace is expressed as None of these Weight heated/hr/furnace volume Weight heated/furnace volume Weight heated/hr None of these Weight heated/hr/furnace volume Weight heated/furnace volume Weight heated/hr ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1250 1050 750 350 1250 1050 750 350 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Size of the furance Use of waste heat recovery equipments Thickness of the stock Emissivity of the refactory walls Size of the furance Use of waste heat recovery equipments Thickness of the stock Emissivity of the refactory walls ANSWER DOWNLOAD EXAMIANS APP
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