Refractory Technology Graphite or carbon refractories Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to Thermal spalling Slag attack Fusion under load CO attack Thermal spalling Slag attack Fusion under load CO attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Alumina Graphite Silicon carbide Zirconia Alumina Graphite Silicon carbide Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is ZrSO₄ Amorphous magnesite Crystalline form of MgO MgCO₃ ZrSO₄ Amorphous magnesite Crystalline form of MgO MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Both A & B Neither A nor B Less fusion point Better spalling resistance Both A & B Neither A nor B Less fusion point Better spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Repairing construction of various furnace parts Neither A nor B Both A & B Obtaining monolithic working faces Repairing construction of various furnace parts Neither A nor B Both A & B Obtaining monolithic working faces ANSWER DOWNLOAD EXAMIANS APP
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