Refractory Technology Silicon carbide refractories are used in the Zinc smelting furnace All of these Ceramic recuperators Muffle furnace Zinc smelting furnace All of these Ceramic recuperators Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 500-1000 200-400 50-100 100-150 500-1000 200-400 50-100 100-150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by Making it denser Increasing its porosity Decreasing its thermal co-efficient of expansion Using a coarser grog during its manufacture Making it denser Increasing its porosity Decreasing its thermal co-efficient of expansion Using a coarser grog during its manufacture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 1350 2570 2800 1715 1350 2570 2800 1715 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? Cristobalite Quartz None of these Tridymite Cristobalite Quartz None of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the Furnaces allowed to cool frequently Chimney linings All of these Flues Furnaces allowed to cool frequently Chimney linings All of these Flues ANSWER DOWNLOAD EXAMIANS APP
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