Which of the following refractory materials is not used in the BOF (LD) working lining?
A. Tar bonded dolomite
B. Pitch bonded magnesite
C. Fired and pitch impregnated magnesite
D. Graphite-alumina composite
Answer: Option D
Related Questions on Fuels, Furnace and Refractories Technology
How much is the percentage of fixed carbon in semi-anthracite?
A. 65 - 70%
B. 45 - 50%
C. 80 - 90%
D. 55 - 65%
How much is the percentage of fixed carbon in lignite?
A. Up to 30
B. Up to 60
C. Up to 90
D. Up to 80
How much is the calorific value of lignite coal?
A. 5000 kcal/kg
B. 8000 kcal/kg
C. 7000 kcal/kg
D. 9000 kcal/kg
How much is the calorific value of semi-anthracite coal?
A. 85 to 88 kcal/kg
B. 850 to 880 kcal/kg
C. 85000 to 88000 kcal/kg
D. 8500 to 8800 kcal/kg
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