A. Lignite
B. Bituminous coal
C. Semi-anthracite
D. Anthracite
Related Mcqs:
- Narrow coke ovens as compared to wider coke ovens_________________?
A. Produce smaller coke
B. Produce stronger coke
C. Require less time of carbonisation
D. All A., B. and C. - Width of the coke oven towards coke side is slightly more than that on pusher side to____________________?
A. Facilitate easy discharging of coke as it swells during carbonisation
B. Facilitate uniform heating of the oven
C. Increase the output of the coke
D. None of these - Coke made in narrower by-product coke ovens (as compared to wider ovens) is _____________________?
A. Less reactive
B. Stronger
C. Smaller in size
D. All A., B. & C. - Degree of carbonisation of coal during coke making can be roughly judged by the ______________ of the coke produced?
A. Colour
B. Moisture content
C. Ash content
D. Volatile matter - During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the _______________ of the mass?
A. Density
B. Porosity
C. Electrical resistivity
D. None of these - Which of the following is not a ‘manufactured’ fuel ?
A. LPG
B. Coal briquettes
C. Tar
D. Colloidal fuels - Which of the following is not a manufactured fuel ?
A. Coke breeze
B. Soft coke
C. Colloidal fuels
D. Charcoal - Which of the following is not a manufactured fuel ?
A. Furnace oil
B. Bagasse
C. Semi-coke
D. Kerosene - Main use of hard coke produced by high temperature carbonisation is in the ____________________ ?
A. Iron blast furnace
B. Cupola in foundries
C. Sinter making
D. Domestic ovens - Out of the following, which is the most important parameter for the blast furnace grade coke ?
A. CSR & CRI
B. Ash content
C. Moisture content
D. Volatile matter content
