Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ MgAl2O₄ MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Warming up Neither A nor B Cooling down Both A & B Warming up Neither A nor B Cooling down Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the most stable crystalline form of silica at room temperature? Tridymite None of these Cristobalite Quartz Tridymite None of these Cristobalite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Resistance to slag penetration Spalling resistance Resistance to carbon monoxide attack Fusion point Resistance to slag penetration Spalling resistance Resistance to carbon monoxide attack Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Firebricks Sillimanite Silica bricks Silicon carbide bricks Firebricks Sillimanite Silica bricks Silicon carbide bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
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