Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Crystalline magnesia Silicon carbide Zirconium sulphate Silicon nitride Crystalline magnesia Silicon carbide Zirconium sulphate Silicon nitride ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Semi-silica Sillimanite Aluminous firebrick Firebrick Semi-silica Sillimanite Aluminous firebrick Firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Resistance to CO attack RUL Permanent linear change Modulus of rupture Resistance to CO attack RUL Permanent linear change Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology RUL of refractories depends on the Physical structure All of these Chemical composition Presence of impurities like iron & alkali Physical structure All of these Chemical composition Presence of impurities like iron & alkali ANSWER DOWNLOAD EXAMIANS APP
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