Refractory Technology Which one expands on heating? Silica bricks Fireclay bricks Neither A nor B Both A & B Silica bricks Fireclay bricks Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Silica Fireclay Magnesite Zirconia Silica Fireclay Magnesite Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories May increase or decrease Increases Decreases Remains same May increase or decrease Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Specific heat None of these Density Thermal conductivity Specific heat None of these Density Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly SiO₂ MgO CaO Al2O₃ SiO₂ MgO CaO Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 80 90 55 70 80 90 55 70 ANSWER DOWNLOAD EXAMIANS APP