Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Corundum Carbon Fireclay 85% alumina Corundum Carbon Fireclay 85% alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Is not stable at high temperature Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 1000-1200 1600-1800 2400-2600 800-1000 1000-1200 1600-1800 2400-2600 800-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Neutral Oxidising Either A or B Neither A nor B Neutral Oxidising Either A or B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Vacuum steel degassing units are lined with Graphite blocks Silica bricks High alumina bricks Low duty firebricks Graphite blocks Silica bricks High alumina bricks Low duty firebricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 2-3 5-7 7-12 14-20 2-3 5-7 7-12 14-20 ANSWER DOWNLOAD EXAMIANS APP
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