Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Volume Specific gravity Neither A nor B Both A & B Volume Specific gravity Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the Electric arc furnace roof Dome of blast furnace stoves Glass melting furnaces All of these Electric arc furnace roof Dome of blast furnace stoves Glass melting furnaces All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Pressing/machine moulding Slip casting Hand moulding Extrusion Pressing/machine moulding Slip casting Hand moulding Extrusion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Cupola Roof of open hearth furnace Bottom of hot metal mixer Gas producer Cupola Roof of open hearth furnace Bottom of hot metal mixer Gas producer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Either A or B; depends on its quantity Lowers Increases Does not affect Either A or B; depends on its quantity Lowers Increases Does not affect ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High refractoriness All of these High resistance to spalling High strength and density High refractoriness All of these High resistance to spalling High strength and density ANSWER DOWNLOAD EXAMIANS APP
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