Hamad Refractory Technology 30/08/2021 A. Tridymite B. Cristobalite C. Quartz D. None of these Related Mcqs: Which one contains maximum percentage of Al2O3 ?A. Firebrick B. Sillimanite C. Magnesite D. Aluminous firebrick... Refractories are dried in the _______________?A. Rotary kilns B. Tunnel kilns C. Sun D. None of these... Chromite refractories are used in_______________?A. Bottom of soaking pits B. Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other C. Both A. & B. D. Neither A. and B.... 10 to 30% magnesite is added to Chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the _____________ of Chromite?A. Spalling resistance B. Refractoriness C. Crushing strength D. Resistance to slag... Which of the following is not a high alumina refractory material ?A. Kyanite B. Sillimanite C. Diaspore D. Periclase...
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