Refractory Technology Which is not a high alumina refractory? Dolomite Mullite Corrundum Bauxite Dolomite Mullite Corrundum Bauxite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of an acidic refractory material is Not affected by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Neutral atmosphere Oxidising atmosphere Electric furnace Reducing atmosphere Neutral atmosphere Oxidising atmosphere Electric furnace Reducing atmosphere 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 2700 2400 2200 1800 2700 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Diatomaceous earth/kieselgur Asbestos Vermiculite None of these Diatomaceous earth/kieselgur Asbestos Vermiculite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? CaO Al2O₃ All of these SiO₂ CaO Al2O₃ All of these SiO₂ ANSWER DOWNLOAD EXAMIANS APP
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