Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Carbon Fireclay Corundum 85% alumina Carbon Fireclay Corundum 85% alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 1730 > 2000 1630-1670 1520-1630 > 1730 > 2000 1630-1670 1520-1630 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Thermal conductivity Specific gravity Strength Porosity Thermal conductivity Specific gravity Strength Porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks At the hearth bottom of the furnace on which stock is placed None of these Used for furnace insulation Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed None of these Used for furnace insulation Used in the roof of the furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 3.5 2 0.5 1 3.5 2 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Better spalling resistance Less fusion point Neither A nor B Both A & B Better spalling resistance Less fusion point Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP