Hamad Refractory Technology 01/10/2020 A. Fireclay bricks B. Mullite bricks C. Tar dolomite bricks D. High alumina bricks Related Mcqs: Lower part of hot metal mixer are lined with _____________ bricks?A. Superduty fireclay B. High alumina C. Silica D. Carborundum... Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?A. 10 B. 100 C. 500 D. 1000... SiO2 percentage in firebrick is about____________________?A. 35-40 B. 55-60 C. 80-85 D. > 94... High refractoriness of refractory bricks means, that it has a________________?A. High spalling resistance B. Low spalling resistance C. High resistance to fusion D. Low porosity... Dolomite bricks have good resistance to attack by_____________________?A. Molten steel B. Iron oxide C. Lime slag D. None of these...
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