Cetane number of a diesel fuel is the measure of its____________________?
Correct answer: A. Ignition delay
- A. Ignition delay
- B. Smoke point
- C. Viscosity
- D. Oxidation stability
Explanation
Cetane number indicates diesel ignition quality: a higher value means a shorter ignition delay after fuel injection. Smoke point and viscosity describe other fuel properties, not cetane quality.
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