Refractory Technology Vacuum steel degassing units are lined with Graphite blocks High alumina bricks Low duty firebricks Silica bricks Graphite blocks High alumina bricks Low duty firebricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Sillimanite is a __________ refractory. Basic Neutral High alumina Insulating Basic Neutral High alumina Insulating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 25-35 44129 35-50 43961 25-35 44129 35-50 43961 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Always less than 1000°C Increased by the addition of acid oxides Reduced by the addition of acid oxides Not affected by the addition of acid oxides Always less than 1000°C Increased by the addition of acid oxides Reduced by the addition of acid oxides Not affected by the addition of acid oxides 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 Refractoriness Spalling resistance Crushing strength Resistance to slag Refractoriness Spalling resistance Crushing strength ANSWER DOWNLOAD EXAMIANS APP
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