Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1710 1520 1380 1915 1710 1520 1380 1915 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? High alumina bricks Silica bricks Tar dolomite bricks Fireclay bricks High alumina bricks Silica bricks Tar dolomite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of an acidic refractory material is Increased by the addition of basic oxides Not affected by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 1 0.5 3.5 2 1 0.5 3.5 2 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Carbon Silica Tar dolomite Fireclay Carbon Silica Tar dolomite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold. High density Low porosity High thermal conductivity Non-wetting characteristics High density Low porosity High thermal conductivity Non-wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS