The fuels in order of decreasing knock tendency for spark ignition eng – McqOptions

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1.	The fuels in order of decreasing knock tendency for spark ignition engines are
A.	Paraffin, aromatic, napthene
B.	Paraffin, napthene, aromatic
C.	Napthene, aromatics, paraffin
D.	Napthene, paraffin, aromatic
Answer» C. Napthene, aromatics, paraffin

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