Refractory Technology Refractory bricks having lower porosity have Low thermal conductivity Greater strength Low heat capacity High insulating properties Low thermal conductivity Greater strength Low heat capacity High insulating properties ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum safe working temperature for fireclay bricks is about __________ °C. 1300 1550 1150 1450 1300 1550 1150 1450 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Borides Oxides Carbides Nitrides Borides Oxides Carbides Nitrides 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. Spalling resistance Resistance to slag Refractoriness Crushing strength Spalling resistance Resistance to slag Refractoriness Crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Decreases Increases May increase or decrease Remains same Decreases Increases May increase or decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory Cements None of these Mortars Castables Cements None of these Mortars Castables ANSWER DOWNLOAD EXAMIANS APP
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