Hamad Refractory Technology 17/08/2021 A. Fireclay B. Silica C. Chrome magnesite D. None of these Related Mcqs: Lower part of hot metal mixer are lined with _____________ bricks?A. Superduty fireclay B. High alumina C. Silica D. Carborundum... Chromite refractories_____________________?A. Are bonded with lime and clay B. (Free from silica) have better thermal fatigue resistance than silica and magnesite refractories. C. Are resistant to basic slag D. All A., B. and C.... Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?A. 1520 B. 1630 C. 1670 D. 1730... Periclase refractory contains mainly________________?A. CaO B. MgO C. Al2O3 D. SiO2... Spray test determines the _____________ of refractories?A. Resistance to slag penetration B. Resistance to CO attack C. RUL D. Permanent linear change...
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