Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Acid Basic None of these Lime Acid Basic None of these Lime ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractory compared to fireclay bricks have Less resistance to slag attack Low refractoriness Less load bearing capacity High resistance to thermal shock and creep Less resistance to slag attack Low refractoriness Less load bearing capacity High resistance to thermal shock and creep ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Either A or B; depends on its quantity Does not affect Increases Lowers Either A or B; depends on its quantity Does not affect Increases Lowers ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Remains unchanged Decreases Decreases linearly Increases Remains unchanged Decreases Decreases linearly Increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon bricks are not used in the lining of the Electric furnaces Combustion chamber of blast furnace stoves Highly chemical resistant equipments Blast furnace hearth Electric furnaces Combustion chamber of blast furnace stoves Highly chemical resistant equipments Blast furnace hearth ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Neither A nor B Less fusion point Both A & B Better spalling resistance Neither A nor B Less fusion point Both A & B Better spalling resistance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS