A. Resistance to slag penetration
B. Resistance to CO attack
C. RUL
D. Permanent linear change
A. Molten steel
B. Iron oxide
C. Lime slag
D. None of these
A. Fireclay
B. Silica
C. Chrome magnesite
D. Zirconia
A. Composition
B. Texture
C. Firing temperature
D. All A., B. and C.
A. Low co-efficient of thermal expansion
B. Poor thermal spalling resistance
C. Tendency to expand unduly high during firing
D. Very high cost
A. Less load bearing capacity
B. Less resistance to slag attack
C. Low refractoriness
D. High resistance to thermal shock and creep
A. Spalling resistance
B. Thermal conductivity
C. Fusion point
D. Slag penetration resistance