Furnace Technology Ingress of cold air in the furnaces through cracks, charging doors, openings etc. Increases the load on the induced draft fan Reduces the furnace draught All of these Reduces the flue gas temperature and makes the furnace atmosphere oxidising Increases the load on the induced draft fan Reduces the furnace draught All of these Reduces the flue gas temperature and makes the furnace atmosphere oxidising ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heating capacity of muffle furnace depends on the Neither A nor B Both A & B Properties of the muffle wall (temperature, area, emissivity) Surface area & emissivity of the stock Neither A nor B Both A & B Properties of the muffle wall (temperature, area, emissivity) Surface area & emissivity of the stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the Use of fuel having too low an ash fusion temperature All of these Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of coal/coke containing a high % of fines and ash Use of fuel having too low an ash fusion temperature All of these Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of coal/coke containing a high % of fines and ash ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Dampers are located After the I.D. fan Before the I.D fan Near the top of the chimney Anywhere after the I.D. fan After the I.D. fan Before the I.D fan Near the top of the chimney Anywhere after the I.D. fan ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overfire burning in a furnace is a phenomenon characterised by Supply of excess fuel Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air None of these Supply of excess fuel Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air None 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? Saving in fuel consumption Increase in flame temperature Increase in calorific value of the fuel Reduction in scale losses Saving in fuel consumption Increase in flame temperature Increase in calorific value of the fuel Reduction in scale losses ANSWER DOWNLOAD EXAMIANS APP
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