Furnace Technology In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by Radiation Can not be predicted Convection Conduction Radiation Can not be predicted Convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the 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 Use of waste heat recovery equipments ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling Causing metal embrittlement All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling Causing metal embrittlement All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Rate of heat release in a furnace, which is the measure of heat intensity is defined as None of these Kcal/hr Kcal/hr/m³ combustion space Kcal/m³ combustion space None of these Kcal/hr Kcal/hr/m³ combustion space Kcal/m³ combustion space ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 850 250 650 1000 850 250 650 1000 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain an oxidising atmosphere in a furnace, it should have More of excess air More of CO₂ in flue gas Less of excess air More of CO in flue gas More of excess air More of CO₂ in flue gas Less of excess air More of CO in flue gas ANSWER DOWNLOAD EXAMIANS APP
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