Refractory Technology With increase in the density of silica refractories, its Spalling resistance reduces Neither A nor B Resistance to slag attack increases Both A & B Spalling resistance reduces Neither A nor B Resistance to slag attack increases Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Silica Zirconia Fireclay Magnesite Silica Zirconia Fireclay Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 100 1000 10 500 100 1000 10 500 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria Silicon carbide Fireclay High alumina Thoria Silicon carbide Fireclay High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 10 to 30% magnesite is added to chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the __________ of chromite. Spalling resistance Refractoriness Crushing strength Resistance to slag Spalling resistance Refractoriness Crushing strength Resistance to slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a Low porosity High spalling resistance Low spalling resistance High resistance to fusion Low porosity High spalling resistance Low spalling resistance High resistance to fusion ANSWER DOWNLOAD EXAMIANS APP
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