Refractory Technology Dolomite bricks have good resistance to attack by Iron oxide Molten steel Lime slag None of these Iron oxide Molten steel Lime slag None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 55-60 >94 80-85 35-40 55-60 >94 80-85 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. All of these Preheating Burning Cooling All of these Preheating Burning Cooling ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Resistance to CO attack Permanent linear change RUL Modulus of rupture Resistance to CO attack Permanent linear change RUL Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Are not resistant to corrosion by slag Exihibit wetting characteristics Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Exihibit wetting characteristics Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
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