Refractory Technology SiO₂ percentage in firebrick is about 35-40 55-60 80-85 >94 35-40 55-60 80-85 >94 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Quartz None of these Cristobalite Tridymite Quartz None of these Cristobalite Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Lead blast furnace Zinc roaster Coke oven walls Beehive oven Lead blast furnace Zinc roaster Coke oven walls Beehive oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Fireclay Silica Magnesite Zirconia Fireclay Silica Magnesite Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Cement Fertiliser Metallurgical Power Cement Fertiliser Metallurgical Power ANSWER DOWNLOAD EXAMIANS APP
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