Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Remains same Increases May increase or decrease Decreases Remains same Increases May increase or decrease Decreases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Alumina Fireclay Graphite Zircon Alumina Fireclay Graphite Zircon ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are never used for lining the Roof of open hearth furnace By-product coke ovens Dome of blast furnace stoves Beehive coke ovens Roof of open hearth furnace By-product coke ovens Dome of blast furnace stoves Beehive coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of zircon to silica refractory brick improves its Neither A nor B Crushing strength Resistance to slag attack Neither A nor B Neither A nor B Crushing strength Resistance to slag attack Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Development of stable mineral form Removal of water of hydration Vitrification Decrease in crushing strength Development of stable mineral form Removal of water of hydration Vitrification Decrease in crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Neither A nor B Silica bricks Both A & B Fireclay bricks Neither A nor B Silica bricks Both A & B Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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