Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silica Lowduty fireclay Chrome or magnesite Silicon carbide Silica Lowduty fireclay Chrome or magnesite Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Dolomite Mullite Bauxite Corrundum Dolomite Mullite Bauxite Corrundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Coke ovens Muffle furnaces Insulation Regenerators Coke ovens Muffle furnaces Insulation Regenerators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Resistance to CO attack Resistance to slag penetration Permanent linear change RUL Resistance to CO attack Resistance to slag penetration Permanent linear change RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 70 30 90 50 70 30 90 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Fireclay Magnesite Corundum Silica Fireclay Magnesite Corundum Silica ANSWER DOWNLOAD EXAMIANS APP
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