Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Basic None of these Lime Acid Basic None of these Lime Acid ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Increases May increase or decrease Decreases Remains same Increases May increase or decrease Decreases Remains same 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 Which of the following impurities reduces the refractoriness of magnesite bricks? All of these Al2O₃ SiO₂ CaO All of these Al2O₃ SiO₂ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Asbestos Vermiculite Diatomaceous earth/kieselgur None of these Asbestos Vermiculite Diatomaceous earth/kieselgur None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Semi-silica bricks Dead burnt magnesite ramming mass Silicon carbide bricks Porous fireclay bricks Semi-silica bricks Dead burnt magnesite ramming mass Silicon carbide bricks Porous fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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