Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1670 1630 1520 1730 1670 1630 1520 1730 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 65 450 150 250 65 450 150 250 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? L.D. converter Rotary lime kiln Soaking pits Ceheating furnace L.D. converter Rotary lime kiln Soaking pits Ceheating furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the Furnaces allowed to cool frequently Chimney linings All of these Flues Furnaces allowed to cool frequently Chimney linings All of these Flues ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 55-60 >94 35-40 80-85 55-60 >94 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these Are stored under controlled temperature & humidity to avoid hydration ANSWER DOWNLOAD EXAMIANS APP
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