Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Silica Superduty fireclay None of these Chromite Silica Superduty fireclay None of these Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Increases Decreases May increase or decrease Remains same Increases Decreases May increase or decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Combustion chamber of B.F. stoves Coke oven regenerators By-product coke oven walls Beehive coke oven Combustion chamber of B.F. stoves Coke oven regenerators By-product coke oven walls Beehive coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks 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 At the hearth bottom of the furnace on which stock is placed None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1630 1730 1520 1670 1630 1730 1520 1670 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory All of these Decreases, if defective joints & cracks exist in the refractory Decreases at higher temperature Depends on the nature of slag & refractory All of these Decreases, if defective joints & cracks exist in the refractory Decreases at higher temperature Depends on the nature of slag & refractory ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS