Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Remains constant Increases Decreases May increase or decrease ; depends on its alumina content Remains constant Increases Decreases May increase or decrease ; depends on its alumina content ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 70 770 270 570 70 770 270 570 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Slag penetration resistance Thermal conductivity Spalling resistance Fusion point Slag penetration resistance Thermal conductivity Spalling resistance Fusion point 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 Dolomite bricks have good resistance to attack by None of these Molten steel Iron oxide Lime slag None of these Molten steel Iron oxide Lime slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Carborundum Silica Superduty fireclay High alumina Carborundum Silica Superduty fireclay High alumina ANSWER DOWNLOAD EXAMIANS APP
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