Refractory Technology Which form of silica has the highest specific gravity? Cristobalite All of these Tridymite Quartz Cristobalite All of these Tridymite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which brick undergoes maximum shrinkage on drying? Tar bonded dolomite bricks Fireclay bricks Chromite bricks Magnesite bricks Tar bonded dolomite bricks Fireclay bricks Chromite bricks Magnesite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Neutral atmosphere Reducing atmosphere Oxidising atmosphere Electric furnace Neutral atmosphere Reducing atmosphere Oxidising atmosphere Electric furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Attack by basic slag Abrasion Both B and C Disintegration on sudden change of temperature Attack by basic slag Abrasion Both B and C Disintegration on sudden change of temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Lowduty fireclay Chrome or magnesite Silica Silicon carbide Lowduty fireclay Chrome or magnesite Silica Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to Dehydrate the dried refractory All of these Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory All of these Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product ANSWER DOWNLOAD EXAMIANS APP
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