Refractory Technology Which is the stable form of silica below 870°C ? Quartz Cristobalite None of these Tridymite Quartz Cristobalite None of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria High alumina Fireclay Silicon carbide Thoria High alumina Fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are used in the hearth of blast furnace Are acidic in nature All of these Are wetted by molten iron Are used in the hearth of blast furnace Are acidic in nature All of these Are wetted by molten iron ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Thoria Magnesia Zirconia Alumina Thoria Magnesia Zirconia Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly MgO Al2O₃ CaO SiO₂ MgO Al2O₃ CaO SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Higher moulding pressure Finer grog size Higher firing temperature All of these Higher moulding pressure Finer grog size Higher firing temperature All of these ANSWER DOWNLOAD EXAMIANS APP
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