Hamad Refractory Technology 12/11/2021 A. Increases B. Lowers C. Does not affect D. Either A. or B.; depends on its quantity Related Mcqs: Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as ______________ percent?A. 10 B. 15 C. 20 D. 30... Which is not a basic refractory ?A. Chrome magnesite B. Magnesite C. Dolomite D. Silicon carbide... Firing temperature is minimum (1250-1400 °C) for _______________ bricks?A. Fireclay B. Direct bonded basic C. Silica D. Magnesite... Porosity of silica bricks varies from ______________ percent?A. 5 to 10 B. 20 to 30 C. 45 to 60 D. 60 to 75... Sillimanite is a _____________ refractory?A. Basic B. Neutral C. High alumina D. Insulating...
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