Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its None of these High thermal conductivity High crushing strength Non-wetting characteristic None of these High thermal conductivity High crushing strength Non-wetting characteristic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a high alumina refractory material? Diaspore Periclase Sillimanite Kyanite Diaspore Periclase Sillimanite Kyanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum safe working temperature for fireclay bricks is about __________ °C. 1550 1300 1450 1150 1550 1300 1450 1150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly SiO₂ CaO Al2O₃ MgO SiO₂ CaO Al2O₃ MgO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Permanent linear change Resistance to CO attack RUL Resistance to slag penetration Permanent linear change Resistance to CO attack RUL Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Fireclay Magnesite Dolomite Silica Fireclay Magnesite Dolomite Silica ANSWER DOWNLOAD EXAMIANS APP
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