Refractory Technology Bottom of basic open hearth furnace are constructed of Porous fireclay bricks Silicon carbide bricks Dead burnt magnesite ramming mass Semi-silica bricks Porous fireclay bricks Silicon carbide bricks Dead burnt magnesite ramming mass Semi-silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Cupola Roof of open hearth furnace Bottom of hot metal mixer Gas producer Cupola Roof of open hearth furnace Bottom of hot metal mixer Gas producer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Permanent linear change Resistance to CO attack RUL Modulus of rupture Permanent linear change Resistance to CO attack RUL Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Has poor electrical conductivity at high temperature Is produced from baddeleyite Can not be used as an insulator Does not react with basic slags Has poor electrical conductivity at high temperature Is produced from baddeleyite Can not be used as an insulator Does not react with basic slags ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Silica bricks Both A & B Fireclay bricks Neither A nor B Silica bricks Both A & B Fireclay bricks Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of zircon to silica refractory brick improves its Neither A nor B Resistance to slag attack Neither A nor B Crushing strength Neither A nor B Resistance to slag attack Neither A nor B Crushing strength ANSWER DOWNLOAD EXAMIANS APP
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