Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Either of the above Oxidation/scaling Decarburising Sulphur penetration Either of the above Oxidation/scaling Decarburising Sulphur penetration ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the All of these Burner design (thoroughness of mixing versus stratification) Air supplied and furnace temperature Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) All of these Burner design (thoroughness of mixing versus stratification) Air supplied and furnace temperature Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which furnace employs natural draft? Coke oven Rotary kilns L.D. converter Boiler Coke oven Rotary kilns L.D. converter Boiler ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a heat treatment furnace? Reheating furnace Muffle furnace Annealing furnace Rotary kiln Reheating furnace Muffle furnace Annealing furnace Rotary kiln 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 Conduction Convection Can not be predicted Radiation Conduction Convection Can not be predicted Radiation ANSWER DOWNLOAD EXAMIANS APP
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