Refractory Technology __________ is the measure of the strength of refractory under the combined effect of temperature & load. Specific gravity Porosity RUL Thermal conductivity Specific gravity Porosity RUL Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low thermal conductivity Greater strength High insulating properties Low heat capacity Low thermal conductivity Greater strength High insulating properties Low heat capacity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is All of these Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. High alumina Superduty fireclay Silica Carborundum High alumina Superduty fireclay Silica Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of zircon to silica refractory brick improves its Resistance to slag attack Neither A nor B Neither A nor B Crushing strength Resistance to slag attack Neither A nor B Neither A nor B Crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 80 70 55 90 80 70 55 90 ANSWER DOWNLOAD EXAMIANS APP
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