Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 7-12 14-20 5-7 2-3 7-12 14-20 5-7 2-3 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 10 to 30% magnesite is added to chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the __________ of chromite. Resistance to slag Spalling resistance Refractoriness Crushing strength Resistance to slag Spalling resistance Refractoriness Crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Pottery furnace Crucibles Glass melting furnace Gas retorts Pottery furnace Crucibles Glass melting furnace Gas retorts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low Refractoriness (< 1700°C) Thermal conductivity Resistance to thermal shock None of these Refractoriness (< 1700°C) Thermal conductivity Resistance to thermal shock None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Very low alumina Dolomite Silica Fireclay Very low alumina Dolomite Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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