Hamad Refractory Technology 04/07/2020 A. Corundum B. Carborundum C. Bauxite D. Periclase 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.... Maximum alumina content in high alumina refractory can be as high as _____________ percent?A. 30 B. 50 C. 70 D. 90... Furnace atmosphere for softening temperature determination of refractories (in which Seger Cones are placed) should be __________________?A. Oxidising B. Neutral C. Either A. or B. D. Neither A. nor B.... Fireclay bricks is not used for lining the__________________?A. Cupola B. Gas producer C. Bottom of hot metal mixer D. Roof of open hearth furnace...
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