The characterisation factor of a crude oil is calculated as 12.5. It means that; it is________________?
Correct answer: D. Paraffinic
- A. None of these
- B. Naphthenic
- C. Intermediate
- D. Paraffinic
Explanation
The Watson characterisation factor is generally above 12 for paraffinic crude, about 10 to 12 for naphthenic crude, and lower for aromatic crude. A value of 12.5 therefore indicates a paraffinic oil.
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