Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Silica bricks Fireclay bricks High alumina bricks Tar dolomite bricks Silica bricks Fireclay bricks High alumina bricks Tar dolomite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chemically, mullite refractories is ThO₂ 3Al2O₃.2SiO₂ Al2O₃ ZrSO₄ ThO₂ 3Al2O₃.2SiO₂ Al2O₃ ZrSO₄ 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. 2700 2200 1800 2400 2700 2200 1800 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Texture Firing temperature Shape Composition Texture Firing temperature Shape Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High resistance to fusion Low porosity High spalling resistance Low spalling resistance High resistance to fusion Low porosity High spalling resistance Low spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology What is Thoria? Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock All of these Thoria Has high resistance to basic slags Which is expensive & radioactive, is used in crucibles for melting high purity metals Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock All of these Thoria Has high resistance to basic slags Which is expensive & radioactive, is used in crucibles for melting high purity metals ANSWER DOWNLOAD EXAMIANS APP
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