Lower part of hot metal mixer are lined with _____________ bricks?
Correct answer: D. Carborundum
- A. Superduty fireclay
- B. High alumina
- C. Silica
- D. Carborundum
Explanation
The lower part of a hot-metal mixer faces intense abrasion and contact with molten metal, so silicon-carbide-based carborundum bricks are used for their high wear resistance and thermal conductivity.
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