Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 450 65 250 150 450 65 250 150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Dolomite Magnesite Silica Fireclay Dolomite Magnesite Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Silicon carbide Magnesite Graphite Chromite Silicon carbide Magnesite Graphite Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silicon carbide Chrome or magnesite Silica Lowduty fireclay Silicon carbide Chrome or magnesite Silica Lowduty fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 80 45 60 95 80 45 60 95 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to Dehydrate the dried refractory Develop stable mineral forms in them All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory Develop stable mineral forms in them All of these Form ceramic bonds necessary for development of high crushing strength in the finished product ANSWER DOWNLOAD EXAMIANS APP
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