Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Alumina Zirconia Thoria Beryllia Alumina Zirconia Thoria Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum apparent porosity of magnesite bricks is about __________ percent. 58 24 8 44 58 24 8 44 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Silicon carbide Crystalline magnesia Silicon nitride Zirconium sulphate Silicon carbide Crystalline magnesia Silicon nitride Zirconium sulphate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Tridymite None of these Cristobalite Quartz Tridymite None of these Cristobalite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Regenerators of coke oven Walls of coke oven Side wall of soaking pits Hearth of blast furnace Regenerators of coke oven Walls of coke oven Side wall of soaking pits Hearth of blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the Glass melting furnaces All of these Electric arc furnace roof Dome of blast furnace stoves Glass melting furnaces All of these Electric arc furnace roof Dome of blast furnace stoves ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS