Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Muffle furnace Coke oven regenarators Blast furnace Recuperators Muffle furnace Coke oven regenarators Blast furnace Recuperators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 50-100 200-400 100-150 500-1000 50-100 200-400 100-150 500-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories have Very high cost Tendency to expand unduly high during firing Low co-efficient of thermal expansion Poor thermal spalling resistance Very high cost Tendency to expand unduly high during firing Low co-efficient of thermal expansion Poor thermal spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for All of these Patch work Minimising the number of joints in the structure Producing monolithic linings All of these Patch work Minimising the number of joints in the structure Producing monolithic linings ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory Decreases, if defective joints & cracks exist in the refractory All of these Depends on the nature of slag & refractory Decreases at higher temperature Decreases, if defective joints & cracks exist in the refractory All of these Depends on the nature of slag & refractory Decreases at higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high None of these Shrinkage ability Spalling rate Fusion point None of these Shrinkage ability Spalling rate Fusion point ANSWER DOWNLOAD EXAMIANS APP
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