Refractory Technology High alumina refractories are used in the Electric arc furnace roof All of these Dome of blast furnace stoves Glass melting furnaces Electric arc furnace roof All of these Dome of blast furnace stoves Glass melting furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Decrease in crushing strength Vitrification Development of stable mineral form Removal of water of hydration Decrease in crushing strength Vitrification Development of stable mineral form Removal of water of hydration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly CaO Al2O₃ SiO₂ MgO CaO Al2O₃ SiO₂ MgO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Both (b) and © Not subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Used for raising & maintaining high temperature Both (b) and © Not subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Used for raising & maintaining high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 3.5 2 1 0.5 3.5 2 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Silicon carbide bricks Semi-silica bricks Dead burnt magnesite ramming mass Porous fireclay bricks Silicon carbide bricks Semi-silica bricks Dead burnt magnesite ramming mass Porous fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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