Refractory Technology

A. 55
B. 70
C. 80
D. 90

A. Firebrick
B. Sillimanite
C. Semi-silica
D. Aluminous firebrick

A. Porosity
B. RUL
C. Specific gravity
D. Thermal conductivity

A. Kyanite
B. Sillimanite
C. Diaspore
D. Periclase

A. Diatomaceous earth/kieselgur
B. Asbestos
C. Vermiculite
D. None of these

A. Lime
B. Basic
C. Acid
D. None of these

A. Tar dolomite
B. Carbon
C. Silica
D. Fireclay

A. Strength
B. Thermal conductivity
C. Spalling resistance
D. None of these

A. Silica
B. Fireclay
C. Magnesite
D. Zirconia

A. 0.5
B. 1
C. 2
D. 3.5