Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Alumina Zirconia Magnesia Thoria Alumina Zirconia Magnesia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Both A & B Silica bricks Neither A nor B Fireclay bricks Both A & B Silica bricks Neither A nor B Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 2000 1600 700 1000 2000 1600 700 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Fireclay bricks Magnesia bricks Silica bricks Bauxite bricks Fireclay bricks Magnesia bricks Silica bricks Bauxite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Specific gravity Both A & B Neither A nor B Volume Specific gravity Both A & B Neither A nor B Volume ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Cooling down Neither A nor B Warming up Both A & B Cooling down Neither A nor B Warming up Both A & B ANSWER DOWNLOAD EXAMIANS APP
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