Magnesite refractories are used for the construction of those furnaces, which are________________?
Correct answer: D. Both B. and C.
- A. Not required to resist the corrosive action of basic slag
- B. Not subjected to fluctuation in temperature
- C. Used for raising & maintaining high temperature
- D. Both B. and C.
Explanation
Magnesite refractories withstand high temperatures and basic environments but have poor resistance to sudden temperature changes. They are therefore preferred where temperature fluctuation is limited and high temperature must be maintained.
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