Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Alumina Beryllia Zirconia Thoria Alumina Beryllia Zirconia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Remains same Decreases May increase or decrease Increases Remains same Decreases May increase or decrease Increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Graphite Silica Magnesia Magnesite chrome Graphite Silica Magnesia Magnesite chrome ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. Preheating All of these Burning Cooling Preheating All of these Burning Cooling ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability Fusion point Spalling rate None of these Shrinkage ability Fusion point Spalling rate None of these ANSWER DOWNLOAD EXAMIANS APP
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