Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 >1350 1000 500 >2000 >1350 1000 500 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 2 3.5 0.5 1 2 3.5 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Thermal conductivity None of these Strength Spalling resistance Thermal conductivity None of these Strength Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Nitrides Oxides Borides Carbides Nitrides Oxides Borides Carbides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Remains same May increase or decrease Increases Decreases Remains same May increase or decrease Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Volume Both A & B Specific gravity Neither A nor B Volume Both A & B Specific gravity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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