Refractory Technology

A. Fireclay
B. Carborundum
C. Graphite
D. Chromite

A. Contains both alumina and silica
B. Is crushed firebrick
C. Is a non-plastic material
D. All A., B. and C.

A. Silica bricks
B. Fireclay bricks
C. Bauxite bricks
D. Magnesia bricks

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

A. Muffle furnace
B. Zinc smelting furnace
C. Ceramic recuperators
D. All A., B. and C.

A. Pug
B. Ball
C. Tube
D. Rod

A. Resistance to slag attack increases
B. Spalling resistance reduces
C. Both A. and B.
D. Neither A. nor B.

A. MgAl2O4
B. MgAl2O3
C. MgSO4
D. MgAl2O3.2H2O

A. 35-40
B. 55-60
C. 80-85
D. > 94

A. Al2O3
B. CaO
C. SiO2
D. All A., B. & C.