Refractory Technology Segar cones are used for the determination of __________ of refractories. Softening temperature Electrical conductivity Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity Spalling resistance Resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High strength and density All of these High resistance to spalling High refractoriness High strength and density All of these High resistance to spalling High refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 2 3.5 1 0.5 2 3.5 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C Transformed to crystoballite on heating above 1470°C All of these Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C Transformed to crystoballite on heating above 1470°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgSO₄ MgAl2O₃ MgAl2O₃.2H₂O MgAl2O₄ MgSO₄ MgAl2O₃ MgAl2O₃.2H₂O MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Chromite Superduty fireclay None of these Silica Chromite Superduty fireclay None of these Silica ANSWER DOWNLOAD EXAMIANS APP
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