Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Presence of iron or silica is harmful Very high temperatures are involved Highly reducing conditions are involved All of these Presence of iron or silica is harmful Very high temperatures are involved Highly reducing conditions are involved All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Decreases Remains unchanged Decreases linearly Increases Decreases Remains unchanged Decreases linearly Increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B Low porosity Both A & B High thermal conductivity Neither A nor B Low porosity Both A & B High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Tube Ball Pug Rod Tube Ball Pug Rod ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic electric furnace is made of __________ bricks. None of these Superduty fireclay Chromite Silica None of these Superduty fireclay Chromite Silica ANSWER DOWNLOAD EXAMIANS APP