Refractory Technology Which of the following has the lowest electrical resistivity? Zircon Graphite Fireclay Alumina Zircon Graphite Fireclay Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a Low porosity High resistance to fusion Low spalling resistance High spalling resistance Low porosity High resistance to fusion Low spalling resistance High spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Muffle furnaces Coke ovens Insulation Regenerators Muffle furnaces Coke ovens Insulation Regenerators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Corrundum Mullite Dolomite Bauxite Corrundum Mullite Dolomite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of an acidic refractory material is Not affected by the addition of basic oxides Increased by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides Not affected by the addition of basic oxides Increased by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1520 1670 1630 1730 1520 1670 1630 1730 ANSWER DOWNLOAD EXAMIANS APP
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