Furnace Technology Decarburisation of steel Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) Affects its crystalline structure All of these Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) Affects its crystalline structure All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of 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 Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature 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? Reduction in scale losses Saving in fuel consumption Increase in calorific value of the fuel Increase in flame temperature Reduction in scale losses Saving in fuel consumption Increase in calorific value of the fuel Increase in flame temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? Temperature of flue gas All of these Thermal conductivity of stock Thickness of heating stock Temperature of flue gas All of these Thermal conductivity of stock Thickness of heating stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the All of these Corrosive nature of the waste gas Dust concentration & nature of dust in waste gas Quantity & temperature of waste gas All of these Corrosive nature of the waste gas Dust concentration & nature of dust in waste gas Quantity & temperature of waste gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following accentuates clinker-ing troubles on furnace grate burning coal? Low forced draft & fuel bed temperature All of these Thick firebed and preheated primary air Low reactivity of carbonised residue containing high proportion of iron & sulphur Low forced draft & fuel bed temperature All of these Thick firebed and preheated primary air Low reactivity of carbonised residue containing high proportion of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
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