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← HistoryWhich outcome occurs in a blast furnace when the coke supply is significantly reduced?
A)Increased silicon content in pig iron
B)Formation of a viscous, unmeltable slag
C)Elevated levels of carbon monoxide emissions
D)Reduction in the furnace's internal temperature✓
💡 Explanation
When the coke supply is reduced, incomplete combustion of the fuel occurs because of insufficient carbon, leading to a decrease in the heat generated within the furnace. Therefore, a reduction in furnace temperature results, rather than changes in silicon content, viscous slag, or elevated CO emissions, each requiring sufficient fuel and specific chemical conditions.
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