Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

(A) 6 : 1 (X)
(B) 12 : 1 ()
(C) 18 : 1 (X)
(D) 24 : 1 (X)

Answers: Air-petrol ratio for maximum power generation in spark ignition engine is about 12 : 1.