Furnace Technology To reduce the stack loss, heat recovery from flue gas can be done by Preheating of cold stock Preheating of combustion air All of these Steam generation in waste heat boilers Preheating of cold stock Preheating of combustion air All of these Steam generation in waste heat boilers ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel All of these Affects its crystalline structure Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) All of these Affects its crystalline structure Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) 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 Scaling of furnace stock is reduced by __________ in flue gas. CO All of these H₂ High CO/CO₂ CO All of these H₂ High CO/CO₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C. 60 40 20 5 60 40 20 5 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to Protect the charge from the effects of the products of combustion Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Neither A nor B Protect the charge from the effects of the products of combustion Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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