Refractory Technology Which is the most stable crystalline form of silica at room temperature? Quartz None of these Tridymite Cristobalite Quartz None of these Tridymite Cristobalite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Neither A nor B Both A & B Bottom of soaking pits Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Neither A nor B Both A & B Bottom of soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C. 1670 1630 1520 1730 1670 1630 1520 1730 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Bottom of hot metal mixer Gas producer Cupola Roof of open hearth furnace Bottom of hot metal mixer Gas producer Cupola Roof of open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Low thermal conductivity Neither A nor B Both A & B High porosity Low thermal conductivity Neither A nor B Both A & B High porosity ANSWER DOWNLOAD EXAMIANS APP
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