A. Firebricks
B. Silica bricks
C. Silicon carbide bricks
D. Sillimanite
A. Coke oven walls
B. Beehive coke ovens
C. Dome and upper portion of B.F. stoves
D. Open hearth furnace roof
A. Are bonded with lime and clay
B. (Free from silica) have better thermal fatigue resistance than silica and magnesite refractories.
C. Are resistant to basic slag
D. All A., B. and C.
A. Segar cones
B. Orton cones
C. Pressure vessels
D. Ovens & retorts
A. Does not react with basic slags
B. Is produced from baddeleyite
C. Cannot be used as an insulator
D. Has poor electrical conductivity at high temperature
A. Dehydrate the dried refractory
B. Develop stable mineral forms in them
C. Form ceramic bonds necessary for development of high crushing strength in the finished
product
D. All A., B. and C.
A. High alumina
B. Fireclay
C. Thoria
D. Silicon carbide