Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Both A & B Volume Specific gravity Neither A nor B Both A & B Volume Specific gravity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog All of these Is a non-plastic material Contains both alumina and silica Iscrushed firebrick All of these Is a non-plastic material Contains both alumina and silica Iscrushed firebrick 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. 90 55 70 80 90 55 70 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. Burning Cooling Preheating All of these Burning Cooling Preheating All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Is produced from baddeleyite Does not react with basic slags Can not be used as an insulator Has poor electrical conductivity at high temperature Is produced from baddeleyite Does not react with basic slags Can not be used as an insulator Has poor electrical conductivity at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Alumina Beryllia Thoria Zirconia Alumina Beryllia Thoria Zirconia ANSWER DOWNLOAD EXAMIANS APP
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