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