When carbon in the fuel is vaporized but some does not combine with any oxygen is?
a. Mono-carbon
b. Loose carbon
c. Separated carbon
d. Free carbon
e. Fixed carbon
Answer: D
When carbon in the fuel is vaporized but some does not combine with any oxygen is?
a. Mono-carbon
b. Loose carbon
c. Separated carbon
d. Free carbon
e. Fixed carbon
Answer: D