Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Silica Chromite Superduty fireclay None of these Silica Chromite Superduty fireclay None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Specific gravity Volume Both A & B Neither A nor B Specific gravity Volume Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is Crystalline form of MgO Amorphous magnesite ZrSO₄ MgCO₃ Crystalline form of MgO Amorphous magnesite ZrSO₄ MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Converted to tridymite on firing between 870 to 1470°C All of these Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C Converted to tridymite on firing between 870 to 1470°C All of these Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a basic refractory? Magnesite Chrome magnesite Dolomite Silicon carbide Magnesite Chrome magnesite Dolomite Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
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