Prime coking coal is always blended with medium or non- coking coal before carbonisation__________________?

Fuels and Combustion 13/08/2024

A. To check against its excessive swelling during heating, which may exert high pressure and
damage coke oven walls
B. Because, it alone produces unreactive coke
C. Both A. and B.
D. Neither A. nor B.

Related Mcqs:

    Mott and Wheeler test is conducted on coke to find its _____________________?
    A. Reactivity with O2 B. Abradability C. Phosphorus content D. Volatile matter content...
    Desirable “Micum Index” values of metallurgical coke are ___________________?
    A. M40 > 78% and M10 < 10% B. M40 > 4% and M10 10% and M10 98% and M10 < 2%...
    Number of macrocomponents present in coal according to Stopes are ___________________?
    A. Four B. Five C. Six D. Two...
    Higher fuel combustion efficiency cannot be achieved by_________________?
    A. Preheating of fuel gases & combustion air B. Reducing sulphur content in the fuel C. Adopting proper fuel firing technique & fuel preparation D. Supplying correct amount of combustion air...
    With increase in moisture content of coal, its_____________________?
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