Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Use of waste heat recovery equipments Size of the furance Emissivity of the refactory walls Thickness of the stock Use of waste heat recovery equipments Size of the furance Emissivity of the refactory walls Thickness of the stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is a regenerative furnace? Open hearth furnace Neither A nor B Coke oven heating chamber Both A and B Open hearth furnace Neither A nor B Coke oven heating chamber Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a muffle furnace, the muffle Retards the heat transfer All of these Assists in temperature equalisation in the charge Permits the use of controlled atmosphere for the protection of stock Retards the heat transfer All of these Assists in temperature equalisation in the charge Permits the use of controlled atmosphere for the protection of stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? Thermal conductivity of stock Temperature of flue gas All of these Thickness of heating stock Thermal conductivity of stock Temperature of flue gas All of these Thickness of heating stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel 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) All of these ANSWER DOWNLOAD EXAMIANS APP
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