Hamad Refractory Technology 01/11/2021 A. Shape B. Composition C. Firing temperature D. Texture Related Mcqs: Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant ?A. Soaking pits B. Reheating furnace C. L.D. converter D. Rotary lime kiln... Silica refractories__________________?A. crack when subjected to sudden change of temperature B. Cannot be used in the dome of hot blast stoves C. Have lower thermal conductivity than fireclay bricks D. All A., B. and C.... Electrical resistor bars are made of _______________?A. Silicon carbide B. Alumina C. Zirconia D. Graphite... Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the_________________?A. Washing action of metal B. Corrosion by layer of slag C. Both A. & B. D. Neither A. nor B.... . Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?A. 500 B. 1000 C. >1350 D. >2000...
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