Refractory Technology SiO₂ percentage in firebrick is about 80-85 >94 35-40 55-60 80-85 >94 35-40 55-60 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Vacuum steel degassing units are lined with Silica bricks Graphite blocks High alumina bricks Low duty firebricks Silica bricks Graphite blocks High alumina bricks Low duty firebricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Graphite Magnesite chrome Magnesia Silica Graphite Magnesite chrome Magnesia Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Alumina Zircon Fireclay Graphite Alumina Zircon Fireclay Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silicon carbide bricks Sillimanite Firebricks Silica bricks Silicon carbide bricks Sillimanite Firebricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its None of these Specific gravity Fusion point RUL None of these Specific gravity Fusion point RUL ANSWER DOWNLOAD EXAMIANS APP
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