Refractory Technology Segar cones are used for the determination of __________ of refractories. Electrical conductivity Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity Spalling resistance Resistance to slag attack Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dolomite bricks have good resistance to attack by Molten steel None of these Iron oxide Lime slag Molten steel None of these Iron oxide Lime slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Quartz None of these Tridymite Cristobalite Quartz None of these Tridymite Cristobalite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Roof of open hearth furnace Gas producer Cupola Bottom of hot metal mixer Roof of open hearth furnace Gas producer Cupola Bottom of hot metal mixer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to Thermal spalling CO attack Fusion under load Slag attack Thermal spalling CO attack Fusion under load Slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its Non-wetting characteristic High crushing strength High thermal conductivity None of these Non-wetting characteristic High crushing strength High thermal conductivity None of these ANSWER DOWNLOAD EXAMIANS APP
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