With increase in the density of silica refractories, its_______________?
Correct answer: A. Both A. and B.
- A. Both A. and B.
- B. Spalling resistance reduces
- C. Resistance to slag attack increases
- D. Neither A. nor B.
Explanation
Greater density improves resistance to slag penetration and attack, but it reduces the ability of silica refractories to accommodate thermal stresses, lowering spalling resistance. Thus both statements are correct.
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