Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 270 770 570 70 270 770 570 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the Basic Bessemer converter Basic open hearth furnace All of these Electric furnaces Basic Bessemer converter Basic open hearth furnace All of these Electric furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability None of these Spalling rate Fusion point Shrinkage ability None of these Spalling rate Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Panel test determines the __________ of refractories. Refractoriness under load (RUL) Spalling resistance Slag penetration resistance Fusion point Refractoriness under load (RUL) Spalling resistance Slag penetration resistance Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1520 1915 1710 1380 1520 1915 1710 1380 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are wetted by molten iron Are used in the hearth of blast furnace Are acidic in nature All of these Are wetted by molten iron Are used in the hearth of blast furnace Are acidic in nature All of these ANSWER DOWNLOAD EXAMIANS APP
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