Multiple choice

Which one of the following is used for rating diesel oil?

  1. Fuel number

  2. Magic number

  3. Octane number

  4. Cetane number
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cetane number is a measure of the ignition quality of diesel fuel oil, analogous to octane number for gasoline. Higher cetane numbers indicate shorter ignition delay and better combustion quality.

Keep practicing — related questions