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 one contains minimum percentage of SiO₂? Aluminous firebrick Sillimanite Firebrick Semi-silica Aluminous firebrick Sillimanite Firebrick Semi-silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Is unaffected with change in service temperature Increases with rise in service temperature Decreases with rise in service temperature Decreases with increase in porosity Is unaffected with change in service temperature Increases with rise in service temperature Decreases with rise in service temperature Decreases with increase in porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Zircon Fireclay Alumina Graphite Zircon Fireclay Alumina Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Metallurgical Power Cement Fertiliser Metallurgical Power Cement Fertiliser ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Magnesia Silicon carbide Zirconia None of these Magnesia Silicon carbide Zirconia None of these ANSWER DOWNLOAD EXAMIANS APP
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