Magnesite refractories have low resistance to___________________?
Correct answer: D. Both B. and C.
- A. Attack by basic slag
- B. Abrasion
- C. Disintegration on sudden change of temperature
- D. Both B. and C.
Explanation
Magnesite refractories resist basic slag well, but they have poor resistance to abrasion and thermal shock, causing disintegration during sudden temperature changes. Hence both abrasion and thermal-shock resistance are weaknesses.
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