Refractory Technology Refractory bricks with lower permeability is produced by using Higher firing temperature Finer grog size All of these Higher moulding pressure Higher firing temperature Finer grog size All of these Higher moulding pressure ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Cristobalite Quartz All of these Tridymite Cristobalite Quartz All of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 45 to 60 5 to 10 20 to 30 60 to 75 45 to 60 5 to 10 20 to 30 60 to 75 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Fusion point Thermal conductivity Spalling resistance Slag penetration resistance Fusion point Thermal conductivity Spalling resistance Slag penetration resistance ANSWER DOWNLOAD EXAMIANS APP
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