Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Both A & B Volume Specific gravity Neither A nor B Both A & B Volume Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 90 70 30 50 90 70 30 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is MgCO₃ ZrSO₄ Crystalline form of MgO Amorphous magnesite MgCO₃ ZrSO₄ Crystalline form of MgO Amorphous magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks All of these Are acidic in nature Are used in the hearth of blast furnace Are wetted by molten iron All of these Are acidic in nature Are used in the hearth of blast furnace Are wetted by molten iron ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Both A & B Neither A nor B Repairing construction of various furnace parts Obtaining monolithic working faces Both A & B Neither A nor B Repairing construction of various furnace parts Obtaining monolithic working faces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have Low co-efficient of expansion All of these High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion All of these High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) ANSWER DOWNLOAD EXAMIANS APP
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