Category: Refractory Technology

A. 800-1000
B. 1000-1200
C. 1600-1800
D. 2400-2600

A. Subjected to temperature fluctuation
B. Required to resist corrosive basic slag
C. Subjected to high load
D. None of these

A. Decreases linearly
B. Remains unchanged
C. Increases
D. Decreases

A. Firebricks
B. Silica bricks
C. Silicon carbide bricks
D. Sillimanite

A. Silicon carbide
B. Alumina
C. Zirconia
D. Graphite

A. High duty fireclay
B. Silica
C. Mullite
D. Carborundum

A. Spalling resistance
B. Fusion point
C. Resistance to slag penetration
D. Resistance to carbon monoxide attack

A. Cooling down
B. Warming up
C. Both A. & B.
D. Neither A. nor B.

A. Bakelite impregnated or fused periclase
B. Silica
C. Semi-silica
D. Fireclay

A. Al2O3. 2SiO2
B. 3Al2O3. 2SiO2
C. Al2O3. SiO2
D. 2Al2O3. 3SiO2