Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Zirconia Magnesia None of these Silicon carbide Zirconia Magnesia None of these Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns. 2200 1800 2400 2700 2200 1800 2400 2700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 2400-2600 1000-1200 800-1000 1600-1800 2400-2600 1000-1200 800-1000 1600-1800 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the Electric furnaces Basic open hearth furnace All of these Basic Bessemer converter Electric furnaces Basic open hearth furnace All of these Basic Bessemer converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1520 1670 1730 1630 1520 1670 1730 1630 ANSWER DOWNLOAD EXAMIANS APP
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