Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Specific gravity Both A & B Volume Neither A nor B Specific gravity Both A & B Volume Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Magnesite chrome Magnesia Graphite Silica Magnesite chrome Magnesia Graphite Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Panel test determines the __________ of refractories. Spalling resistance Slag penetration resistance Fusion point Refractoriness under load (RUL) Spalling resistance Slag penetration resistance Fusion point Refractoriness under load (RUL) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C All of these Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? Al2O₃ CaO All of these SiO₂ Al2O₃ CaO All of these SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Acidic refractory Basic refractory Neutral refractory Fired at a temperature of 600°C only Acidic refractory Basic refractory Neutral refractory Fired at a temperature of 600°C only ANSWER DOWNLOAD EXAMIANS APP
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