Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Very high temperatures are involved Highly reducing conditions are involved All of these Presence of iron or silica is harmful Very high temperatures are involved Highly reducing conditions are involved All of these Presence of iron or silica is harmful ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for All of these Producing monolithic linings Minimising the number of joints in the structure Patch work All of these Producing monolithic linings Minimising the number of joints in the structure Patch work ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Chrome or magnesite Silica Lowduty fireclay Silicon carbide Chrome or magnesite Silica Lowduty fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are generally not used in the Burning zone of cement kilns Electric furnace walls Open hearth furnace Steel melting furnace Burning zone of cement kilns Electric furnace walls Open hearth furnace Steel melting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Neither A nor B Both A & B High porosity Low thermal conductivity Neither A nor B Both A & B High porosity Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Periclase Bauxite Corrundum Carborundum Periclase Bauxite Corrundum Carborundum ANSWER DOWNLOAD EXAMIANS APP
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