Refractory Technology Maximum apparent porosity of magnesite bricks is about __________ percent. 24 44 58 8 24 44 58 8 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Fireclay Alumina Graphite Zircon Fireclay Alumina Graphite Zircon ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Zirconia Chrome magnesite Silica Fireclay Zirconia Chrome magnesite Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the Tunnel kilns Rotary kilns Sun None of these Tunnel kilns Rotary kilns Sun None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Mainly contains quartz Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Mainly contains quartz Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. None of these Thermal conductivity Strength Spalling resistance None of these Thermal conductivity Strength Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
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