Refractory Technology Fusion point of an acidic refractory material is Not affected by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Increased by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Vacuum steel degassing units are lined with Silica bricks High alumina bricks Low duty firebricks Graphite blocks Silica bricks High alumina bricks Low duty firebricks Graphite blocks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Magnesia bricks Silica bricks Bauxite bricks Fireclay bricks Magnesia bricks Silica bricks Bauxite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Lowers Increases Either A or B; depends on its quantity Does not affect Lowers Increases Either A or B; depends on its quantity Does not affect ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >1350 500 >2000 1000 >1350 500 >2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silica Silicon carbide Lowduty fireclay Chrome or magnesite Silica Silicon carbide Lowduty fireclay Chrome or magnesite ANSWER DOWNLOAD EXAMIANS APP
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