Refractory Technology Sillimanite is a __________ refractory. Neutral High alumina Insulating Basic Neutral High alumina Insulating Basic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in High strength & thermal spalling resistance All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production Less shrinkage in heating, decreased apparent porosity & increased specific gravity High strength & thermal spalling resistance All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production Less shrinkage in heating, decreased apparent porosity & increased specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Lead blast furnace Beehive oven Zinc roaster Coke oven walls Lead blast furnace Beehive oven Zinc roaster Coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 1 0.5 2 3.5 1 0.5 2 3.5 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B Low porosity High thermal conductivity Both A & B Neither A nor B Low porosity High thermal conductivity Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to CO attack Thermal spalling Slag attack Fusion under load CO attack Thermal spalling Slag attack Fusion under load ANSWER DOWNLOAD EXAMIANS APP
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