Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. High alumina Thoria Silicon carbide Fireclay High alumina Thoria Silicon carbide Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its Low refractoriness High thermal diffusivity Very high thermal conductivity High co-efficient of expansion upto this temperature Low refractoriness High thermal diffusivity Very high thermal conductivity High co-efficient of expansion upto this temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High strength and density High refractoriness All of these High resistance to spalling High strength and density High refractoriness All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Zircon Carborundum Thoria Beryllia Zircon Carborundum Thoria Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 55-60 35-40 80-85 >94 55-60 35-40 80-85 >94 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Cristobalite Tridymite Quartz None of these Cristobalite Tridymite Quartz None of these ANSWER DOWNLOAD EXAMIANS APP
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