Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Silicon nitride Silicon carbide Zirconium sulphate Crystalline magnesia Silicon nitride Silicon carbide Zirconium sulphate Crystalline magnesia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is ZrSO₄ MgCO₃ Crystalline form of MgO Amorphous magnesite ZrSO₄ MgCO₃ Crystalline form of MgO Amorphous magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Side wall of soaking pits Regenerators of coke oven Walls of coke oven Hearth of blast furnace Side wall of soaking pits Regenerators of coke oven Walls of coke oven Hearth of blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Resistance to slag attack Spalling resistance Electrical conductivity Softening temperature Resistance to slag attack Spalling resistance Electrical conductivity Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Magnesite Fireclay Chrome magnesite Dolomite Magnesite Fireclay Chrome magnesite Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Decreases with rise in service temperature Increases with rise in service temperature Is unaffected with change in service temperature Decreases with increase in porosity Decreases with rise in service temperature Increases with rise in service temperature Is unaffected with change in service temperature Decreases with increase in porosity ANSWER DOWNLOAD EXAMIANS APP
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