Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 90 80 55 70 90 80 55 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Fireclay Dolomite Silica Very low alumina Fireclay Dolomite Silica Very low alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. High alumina Superduty fireclay Carborundum Silica High alumina Superduty fireclay Carborundum Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 200-400 500-1000 50-100 100-150 200-400 500-1000 50-100 100-150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Decreases Increases Remains constant May increase or decrease ; depends on its alumina content Decreases Increases Remains constant May increase or decrease ; depends on its alumina content ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chemically, mullite refractories is 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ Al2O₃ 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
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