Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold. Low porosity High density High thermal conductivity Non-wetting characteristics Low porosity High density High thermal conductivity Non-wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silica bricks Sillimanite Firebricks Silicon carbide bricks Silica bricks Sillimanite Firebricks Silicon carbide bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Pug Ball Rod Tube Pug Ball Rod Tube ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Carborundum Zircon Thoria Beryllia Carborundum Zircon Thoria Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Vacuum steel degassing units are lined with Graphite blocks Low duty firebricks High alumina bricks Silica bricks Graphite blocks Low duty firebricks High alumina bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
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