Crude petroleum oil is a __________ fuel.
A. Primary
B. Fossil
C. Both A & B
D. Secondary
Answer: Option C
Related Questions on Petroleum Refinery Engineering
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
A. Paraffin
B. Olefin
C. Aromatic
D. Naphthene
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