Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Increases May increase or decrease Decreases Remains same Increases May increase or decrease Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Quartz Cristobalite Tridymite All of these Quartz Cristobalite Tridymite All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories are not used in Beehive coke ovens Dome and upper portion of B.F. stoves Open hearth furnace roof Coke oven walls Beehive coke ovens Dome and upper portion of B.F. stoves Open hearth furnace roof Coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Zirconia Thoria Beryllia Alumina Zirconia Thoria Beryllia Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Fireclay bricks Bauxite bricks Silica bricks Magnesia bricks Fireclay bricks Bauxite bricks Silica bricks Magnesia bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 44129 43961 25-35 35-50 44129 43961 25-35 35-50 ANSWER DOWNLOAD EXAMIANS APP
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