A. Hearth of blast furnace
B. Walls of coke oven
C. Regenerators of coke oven
D. Side wall of soaking pits
A. Refractoriness (< 1700°C)
B. Thermal conductivity
C. Resistance to thermal shock
D. None of these
A. Producing monolithic linings
B. Patch work
C. Minimising the number of joints in the structure
D. All A., B. and C.
A. Graphite
B. Fireclay
C. Alumina
D. Zircon
A. 2-3
B. 5-7
C. 7-12
D. 14-20
A. High alumina
B. Fireclay
C. Thoria
D. Silicon carbide
A. Inner lining of L.D. converter
B. Aluminium melting furnaces
C. Wear out lining of steel melting furnaces
D. All A., and B. and C.
A. Fireclay
B. Silica
C. Magnesite
D. Corundum
A. Softening
B. Fracture due to uneven expansion at high temperature
C. Resistance to compressive loads
D. Resistance to chemical action of gases and molten fluxes
A. Fireclay
B. Carbon
C. 85% alumina
D. Corundum