Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High strength and density All of these High refractoriness High resistance to spalling High strength and density All of these High refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Firebrick Aluminous firebrick Semi-silica Sillimanite Firebrick Aluminous firebrick Semi-silica Sillimanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the most stable crystalline form of silica at room temperature? None of these Cristobalite Tridymite Quartz None of these Cristobalite Tridymite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a high alumina refractory material? Periclase Sillimanite Diaspore Kyanite Periclase Sillimanite Diaspore Kyanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Magnesite Corundum Fireclay Silica Magnesite Corundum Fireclay Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Washing action of metal Both A & B Neither A nor B Corrosion by layer of slag Washing action of metal Both A & B Neither A nor B Corrosion by layer of slag ANSWER DOWNLOAD EXAMIANS APP
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