Refractory Technology Silicon carbide refractories are used in the Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its High co-efficient of expansion upto this temperature High thermal diffusivity Low refractoriness Very high thermal conductivity High co-efficient of expansion upto this temperature High thermal diffusivity Low refractoriness Very high thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. None of these Thermal conductivity Spalling resistance Strength None of these Thermal conductivity Spalling resistance Strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Alumina Thoria Magnesia Zirconia Alumina Thoria Magnesia Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories are not used in Beehive coke ovens Dome and upper portion of B.F. stoves Coke oven walls Open hearth furnace roof Beehive coke ovens Dome and upper portion of B.F. stoves Coke oven walls Open hearth furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Semi-silica Aluminous firebrick Firebrick Sillimanite Semi-silica Aluminous firebrick Firebrick Sillimanite ANSWER DOWNLOAD EXAMIANS APP
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