Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Thoria Alumina Zirconia Magnesia Thoria Alumina Zirconia Magnesia 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 2700 1800 2400 2200 2700 1800 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Better spalling resistance Both A & B Neither A nor B Less fusion point Better spalling resistance Both A & B Neither A nor B Less fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Both A & B Low porosity High thermal conductivity Neither A nor B Both A & B Low porosity High thermal conductivity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Carbides Nitrides Oxides Borides Carbides Nitrides Oxides Borides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for Minimising the number of joints in the structure Producing monolithic linings Patch work All of these Minimising the number of joints in the structure Producing monolithic linings Patch work All of these ANSWER DOWNLOAD EXAMIANS APP
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