Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Chrome or magnesite Lowduty fireclay Silicon carbide Silica Chrome or magnesite Lowduty fireclay Silicon carbide Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Dolomite Magnesite Chrome magnesite Fireclay Dolomite Magnesite Chrome magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a Low spalling resistance Low porosity High spalling resistance High resistance to fusion Low spalling resistance Low porosity High spalling resistance High resistance to fusion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? CaO All of these Al2O₃ SiO₂ CaO All of these Al2O₃ SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Decreases May increase or decrease ; depends on its alumina content Remains constant Increases Decreases May increase or decrease ; depends on its alumina content Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Nitrides Borides Carbides Oxides Nitrides Borides Carbides Oxides ANSWER DOWNLOAD EXAMIANS APP
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