Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is____________________?
Correct answer: D. Very low which prevents their ignition by compression
- A. None of these
- B. Very high which prevents their ignition by compression
- C. Zero
- D. Very low which prevents their ignition by compression
Explanation
Cetane number measures the readiness of a diesel fuel to ignite under compression, and alcohols have very low cetane numbers. Consequently, they have poor compression-ignition characteristics in diesel engines.
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