Refractory Technology Periclase is Amorphous magnesite Crystalline form of MgO ZrSO₄ MgCO₃ Amorphous magnesite Crystalline form of MgO ZrSO₄ MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Fusion point Spalling resistance Slag penetration resistance Thermal conductivity Fusion point Spalling resistance Slag penetration resistance Thermal conductivity 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. 70 90 80 55 70 90 80 55 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Tube Ball Rod Pug Tube Ball Rod Pug ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Diatomaceous earth/kieselgur Vermiculite Asbestos None of these Diatomaceous earth/kieselgur Vermiculite Asbestos None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories All of these Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature Have lower thermal conductivity than fireclay bricks All of these Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature Have lower thermal conductivity than fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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