The refractory lining of the bottom in a basic electric arc furnace is made of___________________?
Correct answer: D. Magnesia
- A. Silica
- B. Alumina
- C. Fireclay
- D. Magnesia
Explanation
A basic electric arc furnace uses a basic refractory lining, and magnesia resists attack by basic slags. Silica and fireclay are acidic refractories, while alumina is less suitable for this highly basic environment.
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