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Q. |
For spark ignition engines fuel in order of decreasing knock tendency are |
A. | Paraffins, aromatics, naphthenes |
B. | Paraffins, naphthenes, armatics |
C. | Aromatics, paraffins, naphthenes |
D. | Naphthenes, aromatics, paraffins |
E. | Naphthenes, paraffins |
Answer» B. Paraffins, naphthenes, armatics |
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