Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Remains unchanged Decreases Increases Decreases linearly Remains unchanged Decreases Increases Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories are not used in Dome and upper portion of B.F. stoves Beehive coke ovens Coke oven walls Open hearth furnace roof Dome and upper portion of B.F. stoves Beehive coke ovens Coke oven walls Open hearth furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2570 2800 1350 1715 2570 2800 1350 1715 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Magnesia Alumina Zirconia Thoria Magnesia Alumina Zirconia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks Used for furnace insulation Used in the roof of the furnace None of these At the hearth bottom of the furnace on which stock is placed Used for furnace insulation Used in the roof of the furnace None of these At the hearth bottom of the furnace on which stock is placed ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Thoria Corundum Beryllia Carborundum Thoria Corundum Beryllia Carborundum ANSWER DOWNLOAD EXAMIANS APP
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