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
Benzene is used__________________? Read More »
Fuels and Combustion 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
High temperature carbonisation of coal produces__________________? Read More »
Fuels and Combustion A. CH4 & CO2
B. CO & CO2
C. CH4 & N2
D. CO & N2
Gobar gas constitutes mainly of___________________? Read More »
Fuels and Combustion 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.
During the carbonisation of coal__________________? Read More »
Fuels and Combustion A. Classified
B. Carbonised
C. Caking
D. Non-caking
A coal that softens and fuses on heating is_________________? Read More »
Fuels and Combustion A. Domestic
B. Blast furnace
C. Foundry
D. None of these
Main use of soft coke is as _______________ fuel? Read More »
Fuels and Combustion A. 150
B. 1500
C. 3500
D. 5000
