Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Fireclay Carbon 85% alumina Corundum Fireclay Carbon 85% alumina Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly MgO CaO SiO₂ Al2O₃ MgO CaO SiO₂ Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the Basic Bessemer converter Electric furnaces All of these Basic open hearth furnace Basic Bessemer converter Electric furnaces All of these Basic open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Removal of water of hydration Development of stable mineral form Decrease in crushing strength Vitrification Removal of water of hydration Development of stable mineral form Decrease in crushing strength Vitrification ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Have extremely low thermal & electrical conductivities Do not burn/oxidise, when exposed to air on heating Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations Have extremely low thermal & electrical conductivities Do not burn/oxidise, when exposed to air on heating Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations ANSWER DOWNLOAD EXAMIANS APP
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