Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1710 1915 1520 1380 1710 1915 1520 1380 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Cristobalite Tridymite All of these Quartz Cristobalite Tridymite All of these Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 100-150 500-1000 200-400 50-100 100-150 500-1000 200-400 50-100 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Basic Acid Lime None of these Basic Acid Lime None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Increased thermal conductivity of brick Oxidising condition in the furnace Decreased viscosity of slag None of these Increased thermal conductivity of brick Oxidising condition in the furnace Decreased viscosity of slag None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the Basic open hearth furnace All of these Basic Bessemer converter Electric furnaces Basic open hearth furnace All of these Basic Bessemer converter Electric furnaces ANSWER DOWNLOAD EXAMIANS APP
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