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 70 55 80 90 70 55 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 60 to 75 5 to 10 20 to 30 45 to 60 60 to 75 5 to 10 20 to 30 45 to 60 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Washing action of metal Corrosion by layer of slag Neither A nor B Both A & B Washing action of metal Corrosion by layer of slag Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Superduty fireclay Carborundum Silica High alumina Superduty fireclay Carborundum Silica High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low heat capacity High insulating properties Low thermal conductivity Greater strength Low heat capacity High insulating properties Low thermal conductivity Greater strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Colour of fireclay bricks is Black None of these Light buff to reddish buff Yellow Black None of these Light buff to reddish buff Yellow ANSWER DOWNLOAD EXAMIANS APP
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