Refractory Technology Electrical resistor bars are made of Alumina Graphite Silicon carbide Zirconia Alumina Graphite Silicon carbide Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Quartz None of these Cristobalite Tridymite Quartz None of these Cristobalite Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Remains same Increases Decreases May increase or decrease Remains same Increases Decreases May increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Silicon carbide Chromite Graphite Magnesite Silicon carbide Chromite Graphite Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Magnesite Sillimanite Aluminous firebrick Firebrick Magnesite Sillimanite Aluminous firebrick Firebrick ANSWER DOWNLOAD EXAMIANS APP
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