Refractory Technology An ideal refractory should have high Fusion point Spalling rate None of these Shrinkage ability Fusion point Spalling rate None of these Shrinkage ability ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Are not resistant to corrosion by slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. RUL Resistance to CO attack Resistance to slag penetration Permanent linear change RUL Resistance to CO attack Resistance to slag penetration Permanent linear change ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? Quartz Tridymite None of these Cristobalite Quartz Tridymite None of these Cristobalite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling All of these High refractoriness High strength and density High resistance to spalling All of these High refractoriness High strength and density 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
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