Refractory Technology Colour of fireclay bricks is Light buff to reddish buff Black Yellow None of these Light buff to reddish buff Black Yellow None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about >94 35-40 55-60 80-85 >94 35-40 55-60 80-85 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Sillimanite Firebrick Aluminous firebrick Semi-silica Sillimanite Firebrick Aluminous firebrick Semi-silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Muffle furnace All of these Ceramic recuperators Zinc smelting furnace Muffle furnace All of these Ceramic recuperators Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low heat capacity High insulating properties Greater strength Low thermal conductivity Low heat capacity High insulating properties Greater strength Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology RUL of refractories depends on the Physical structure All of these Presence of impurities like iron & alkali Chemical composition Physical structure All of these Presence of impurities like iron & alkali Chemical composition ANSWER DOWNLOAD EXAMIANS APP
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