Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 200-400 500-1000 50-100 100-150 200-400 500-1000 50-100 100-150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where 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 Very high temperatures are involved Highly reducing conditions are involved All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Coke oven regenarators Muffle furnace Recuperators Blast furnace Coke oven regenarators Muffle furnace Recuperators Blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. High alumina Carborundum Silica Superduty fireclay High alumina Carborundum Silica Superduty fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Ammonium chloride/sulphate All of these Calcium phosphate Powdered naphthalene Ammonium chloride/sulphate All of these Calcium phosphate Powdered naphthalene ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 50 30 90 70 50 30 90 70 ANSWER DOWNLOAD EXAMIANS APP
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