Q. For spark ignition engines fuel in order of decreasing knock tendency are (Solved)
1. Paraffins, aromatics, naphthenes
2. Paraffins, naphthenes, armatics
3. Aromatics, paraffins, naphthenes
4. Naphthenes, aromatics, paraffins
5. Naphthenes, paraffins
- b. Paraffins, naphthenes, armatics