Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Zirconia Beryllia Thoria Alumina Zirconia Beryllia Thoria Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 55-60 >94 35-40 80-85 55-60 >94 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Bauxite Carborundum Periclase Corrundum Bauxite Carborundum Periclase Corrundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Thermal insulation Transformers Television sets Magnetic switches Thermal insulation Transformers Television sets Magnetic switches ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Zirconia None of these Magnesia Silicon carbide Zirconia None of these Magnesia Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Very high temperatures are involved Presence of iron or silica is harmful Highly reducing conditions are involved All of these Very high temperatures are involved Presence of iron or silica is harmful Highly reducing conditions are involved All of these ANSWER DOWNLOAD EXAMIANS APP
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