Refractory Technology Magnesite refractories have low resistance to Abrasion Attack by basic slag Disintegration on sudden change of temperature Both B and C Abrasion Attack by basic slag Disintegration on sudden change of temperature Both B and C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Lowduty fireclay Chrome or magnesite Silica Silicon carbide Lowduty fireclay Chrome or magnesite Silica Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Texture Composition Shape Firing temperature Texture Composition Shape Firing temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Beehive oven Lead blast furnace Zinc roaster Coke oven walls Beehive oven Lead blast furnace Zinc roaster Coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the Insulation of high temperature furnaces Nuclear reactors, missiles & space crafts Roof of electric furnaces Hearth of the blast furnace Insulation of high temperature furnaces Nuclear reactors, missiles & space crafts Roof of electric furnaces Hearth of the blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Exihibit wetting characteristics Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
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