A. Silica bricks
B. Fireclay bricks
C. Bauxite bricks
D. Magnesia bricks
A. Subjected to temperature fluctuation
B. Required to resist corrosive basic slag
C. Subjected to high load
D. None of these
A. Fireclay
B. Carborundum
C. Graphite
D. Chromite
A. Spalling rate
B. Fusion point
C. Shrinkage ability
D. None of these
A. High refractoriness
B. High resistance to spalling
C. High strength and density
D. All A., B. and C.
A. Basic Bessemer converter
B. Basic open hearth furnace
C. Electric furnaces
D. All A., B. and C.
A. At the hearth bottom of the furnace on which stock is placed
B. Used for furnace insulation
C. Used in the roof of the furnace
D. None of these