Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than ________________ mg/kg of kerosene?
Correct answer: B. 20
- A. 1
- B. 20
- C. 100
- D. 500
Explanation
Char value measures carbonaceous deposit left on the wick during standard burning, so a lower value indicates cleaner kerosene. Good-quality kerosene generally has a char value below 20 mg/kg.
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