Mechanical Engineering Mcqs

Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________________?

(A)  Lean mixture

(B)  Chemically correct fuel air ratio

(C)  Rich mixture

(D)  Unpredictable

Submitted By :Ali Uppal

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