Fireclay refractories have __________________?
Correct answer: A. Low co-efficient of thermal expansion
- A. Low co-efficient of thermal expansion
- B. Poor thermal spalling resistance
- C. Tendency to expand unduly high during firing
- D. Very high cost
Explanation
Fireclay refractories generally have a low coefficient of thermal expansion, giving them comparatively good resistance to thermal shock. Their cost is moderate, and they do not characteristically expand excessively during firing.
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