Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. High alumina Fireclay Silicon carbide Thoria High alumina Fireclay Silicon carbide Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its Firing temperature Texture All of these Composition Firing temperature Texture All of these Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology What is Thoria? All of these Which is expensive & radioactive, is used in crucibles for melting high purity metals Thoria Has high resistance to basic slags Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock All of these Which is expensive & radioactive, is used in crucibles for melting high purity metals Thoria Has high resistance to basic slags Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock 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. 1800 2700 2200 2400 1800 2700 2200 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. None of these Magnesia Zirconia Silicon carbide None of these Magnesia Zirconia Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 1000-1200 2400-2600 1600-1800 800-1000 1000-1200 2400-2600 1600-1800 800-1000 ANSWER DOWNLOAD EXAMIANS APP
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