Refractory Technology Fireclay bricks are used in the All of these Chimney linings Flues Furnaces allowed to cool frequently All of these Chimney linings Flues Furnaces allowed to cool frequently ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Coke oven walls Zinc roaster Lead blast furnace Beehive oven Coke oven walls Zinc roaster Lead blast furnace Beehive oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Mainly contains quartz All of these Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes Mainly contains quartz All of these Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 0.5 3.5 2 1 0.5 3.5 2 1 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1380 1915 1710 1520 1380 1915 1710 1520 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Thermal conductivity Spalling resistance None of these Strength Thermal conductivity Spalling resistance None of these Strength ANSWER DOWNLOAD EXAMIANS APP
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