Panel test determines the _____________ of refractories?
Correct answer: B. Spalling resistance
- A. Fusion point
- B. Spalling resistance
- C. Slag penetration resistance
- D. Refractoriness under load (RUL)
Explanation
The panel test repeatedly heats and cools refractory test pieces and observes cracking or failure caused by thermal shock. It therefore measures resistance to spalling rather than fusion point or slag penetration.
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