Refractory Technology Which of the following is not a neutral refractory? Silicon carbide Chromite Magnesite Graphite Silicon carbide Chromite Magnesite Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria Fireclay High alumina Silicon carbide Thoria Fireclay High alumina Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Reduced by the addition of acid oxides Increased by the addition of acid oxides Not affected by the addition of acid oxides Always less than 1000°C Reduced by the addition of acid oxides Increased by the addition of acid oxides Not affected by the addition of acid oxides Always less than 1000°C 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. 55 90 70 80 55 90 70 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Asbestos Vermiculite None of these Diatomaceous earth/kieselgur Asbestos Vermiculite None of these Diatomaceous earth/kieselgur ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Tridymite Cristobalite Quartz All of these Tridymite Cristobalite Quartz All of these ANSWER DOWNLOAD EXAMIANS APP
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