Refractory Technology Segar cones are used for the determination of __________ of refractories. Softening temperature Resistance to slag attack Electrical conductivity Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Sand Saw dust Chemically prepared foam Cork Sand Saw dust Chemically prepared foam Cork ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dolomite bricks have good resistance to attack by None of these Iron oxide Lime slag Molten steel None of these Iron oxide Lime slag Molten steel ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractory compared to fireclay bricks have Low refractoriness High resistance to thermal shock and creep Less resistance to slag attack Less load bearing capacity Low refractoriness High resistance to thermal shock and creep Less resistance to slag attack Less load bearing capacity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Aluminous firebrick Firebrick Semi-silica Sillimanite Aluminous firebrick Firebrick Semi-silica Sillimanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Tridymite Cristobalite Quartz All of these Tridymite Cristobalite Quartz All of these ANSWER DOWNLOAD EXAMIANS APP
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