Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its High thermal conductivity None of these High crushing strength Non-wetting characteristic High thermal conductivity None of these High crushing strength Non-wetting characteristic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Crucibles Glass melting furnace Pottery furnace Gas retorts Crucibles Glass melting furnace Pottery furnace Gas retorts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria Silicon carbide High alumina Fireclay Thoria Silicon carbide High alumina Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its RUL Fusion point Specific gravity None of these RUL Fusion point Specific gravity None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Magnesite Aluminous firebrick Sillimanite Firebrick Magnesite Aluminous firebrick Sillimanite Firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chemically, mullite refractories is ZrSO₄ Al2O₃ 3Al2O₃.2SiO₂ ThO₂ ZrSO₄ Al2O₃ 3Al2O₃.2SiO₂ ThO₂ ANSWER DOWNLOAD EXAMIANS APP
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