Refractory Technology Which is the most stable crystalline form of silica at room temperature? Cristobalite Quartz Tridymite None of these Cristobalite Quartz Tridymite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the None of these Sun Rotary kilns Tunnel kilns None of these Sun Rotary kilns Tunnel kilns ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Sillimanite Semi-silica Firebrick Aluminous firebrick Sillimanite Semi-silica Firebrick Aluminous firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 2000 > 1730 1630-1670 1520-1630 > 2000 > 1730 1630-1670 1520-1630 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an acidic refractory? Fireclay Carbon black Silica High alumina refractory Fireclay Carbon black Silica High alumina refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome bricks are used in the Soaking pits Roof lining of basic open hearth & other basic furnaces All of these Reheating furnaces Soaking pits Roof lining of basic open hearth & other basic furnaces All of these Reheating furnaces ANSWER DOWNLOAD EXAMIANS APP
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