A. Resistance to slag attack increases
B. Spalling resistance reduces
C. Both A. and B.
D. Neither A. nor B.
A. Thermal insulation
B. Transformers
C. Magnetic switches
D. Television sets
A. Preheating
B. Cooling
C. Burning
D. All the above
A. Has high fusion temperature (> 3000°C) but poor resistance to thermal shock
B. Has high resistance to basic slags
C. Which is expensive & radioactive, is used in crucibles for melting high purity metals
D. All A., B. and C.
A. Poor resistance to the penetration of molten slag, metal & flue gases
B. Poor heat conductivity & low strength
C. Better thermal spalling resistance
D. All A., B. and C.
A. Resistance to slag penetration
B. Resistance to CO attack
C. RUL
D. Permanent linear change
A. Contains both alumina and silica
B. Is crushed firebrick
C. Is a non-plastic material
D. All A., B. and C.