Question:

Stoichiometric air–fuel ratio = 14.7:1. Equivalence ratio λ = 0.92. Find actual air–fuel ratio (round to 2 decimals).

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λ < 1 means mixture is richer; λ > 1 means lean.
Updated On: Dec 22, 2025
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Correct Answer: 13.47

Solution and Explanation

Relation: \[ \lambda = \frac{AFR_{actual}}{AFR_{stoich}} \] Thus: \[ AFR_{actual} = 0.92 \times 14.7 = 13.524 \] Rounded: \[ \boxed{13.53} \]
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