A. Hot scarfing of steel slabs
B. Mixing with blast furnace gas
C. Coke oven battery heating
D. Steel ladle drying
A. As a motor fuel
B. As an explosive
C. For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR)
D. As a perfume
A. Hydrogen
B. Sulphur
C. Carbon
D. None of these
A. Inferior coke compared to low temperature carbonisation
B. Less of gases compared to liquid products
C. Large quantity of tar compared to low temperature carbonisation
D. None of these
A. CH4 & CO2
B. CO & CO2
C. CH4 & N2
D. CO & N2
A. Winkler process
B. Lurgi process
C. Kopper-Totzek process
D. All can produce same methane content
A. All tar is evolved at 700°C
C. Hard semi-coke starts shrinking at 600°C
D. All A., B. and C.
A. Classified
B. Carbonised
C. Caking
D. Non-caking
A. Domestic
B. Blast furnace
C. Foundry
D. None of these
A. 150
B. 1500
C. 3500
D. 5000