Question:
Diameter of blast furnace is maximum at
Diameter of blast furnace is maximum at
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Bosh = Big. It is the widest part of the furnace where the melting of the burden begins.
Updated On: Jul 4, 2026
- Hearth
- Stack
- Bosh
- Throat
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The Correct Option is C
Solution and Explanation
Step 1: Concept A blast furnace is a vertical shaft furnace with a specific internal profile designed to facilitate the downward flow of solids and upward flow of gases.
Step 2: Meaning The furnace widens from the throat down to accommodate the expansion of the burden as it heats up.
Step 3: Analysis The stack is the upper converging/diverging part, and the hearth is the bottom cylindrical part for molten products. The bosh is the section where the furnace reaches its maximum diameter before narrowing down toward the hearth.
Step 4: Conclusion The widest part of the blast furnace internal geometry is the bosh. Final Answer: (C)
Step 2: Meaning The furnace widens from the throat down to accommodate the expansion of the burden as it heats up.
Step 3: Analysis The stack is the upper converging/diverging part, and the hearth is the bottom cylindrical part for molten products. The bosh is the section where the furnace reaches its maximum diameter before narrowing down toward the hearth.
Step 4: Conclusion The widest part of the blast furnace internal geometry is the bosh. Final Answer: (C)
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