Refractory Technology __________ is the measure of the strength of refractory under the combined effect of temperature & load. Specific gravity Porosity Thermal conductivity RUL Specific gravity Porosity Thermal conductivity RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Bottom of hot metal mixer Cupola Roof of open hearth furnace Gas producer Bottom of hot metal mixer Cupola Roof of open hearth furnace Gas producer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal conductivity of refractory bricks Is independent of its porosity and is maximum for insulating bricks Increases with the amount of air entrapped in pores Decreases with decreases in porosity Increases with decrease in porosity Is independent of its porosity and is maximum for insulating bricks Increases with the amount of air entrapped in pores Decreases with decreases in porosity Increases with decrease in porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Silica bricks Both A & B Fireclay bricks Neither A nor B Silica bricks Both A & B Fireclay bricks Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent. 20 10 15 30 20 10 15 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Either A or B Neutral Neither A nor B Oxidising Either A or B Neutral Neither A nor B Oxidising ANSWER DOWNLOAD EXAMIANS APP
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