Question

It is necessary to have centrifugal advance of the spark timing since the lean mixtures require an earlier spark timing than the rich mixtures.

(a) True

(b) False

I got this question in an interview for internship.

I need to ask this question from Spark Advance Mechanism in division Ignition of IC Engine

Answer 1

Correct option is (b) False

The best explanation: Actually, it is necessary to have vacuum advance of the spark timing since the lean mixtures require an earlier spark timing than the rich mixtures.