Refractory Technology Which is not a high alumina refractory? Dolomite Bauxite Corrundum Mullite Dolomite Bauxite Corrundum Mullite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Zirconium sulphate Silicon nitride Crystalline magnesia Silicon carbide Zirconium sulphate Silicon nitride Crystalline magnesia Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is ZrSO₄ Crystalline form of MgO MgCO₃ Amorphous magnesite ZrSO₄ Crystalline form of MgO MgCO₃ Amorphous magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where All of these Very high temperatures are involved Presence of iron or silica is harmful Highly reducing conditions are involved All of these Very high temperatures are involved Presence of iron or silica is harmful Highly reducing conditions are involved ANSWER DOWNLOAD EXAMIANS APP
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