Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1670 1730 1520 1630 1670 1730 1520 1630 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Thoria Alumina Zirconia Beryllia Thoria Alumina Zirconia Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 25-35 43961 35-50 44129 25-35 43961 35-50 44129 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 100 1000 500 10 100 1000 500 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the density of silica refractories, its Neither A nor B Resistance to slag attack increases Both A & B Spalling resistance reduces Neither A nor B Resistance to slag attack increases Both A & B Spalling resistance reduces ANSWER DOWNLOAD EXAMIANS APP
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