Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silica Lowduty fireclay Silicon carbide Chrome or magnesite Silica Lowduty fireclay Silicon carbide Chrome or magnesite 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 Low refractoriness High thermal diffusivity Very high thermal conductivity High co-efficient of expansion upto this temperature Low refractoriness High thermal diffusivity Very high thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Refractoriness Wetting characteristics Thermal conductivity Both B and C Refractoriness Wetting characteristics Thermal conductivity Both B and C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Semi-silica bricks Silicon carbide bricks Dead burnt magnesite ramming mass Porous fireclay bricks Semi-silica bricks Silicon carbide bricks Dead burnt magnesite ramming mass Porous fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 1600 700 2000 1000 1600 700 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Periclase Corrundum Carborundum Bauxite Periclase Corrundum Carborundum Bauxite ANSWER DOWNLOAD EXAMIANS APP
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