A slight …….. in lean mixture makes the engine operation irregular and intermittent.
A. increase
B. reduction
C. heat
D. none of the mentioned
Answer:A
A slight …….. in lean mixture makes the engine operation irregular and intermittent.
A. increase B. reduction C. heat D. none of the mentioned
Explanation: Very lean and very rich mixtures give non-knocking operations, and as a reason a slight reduction in lean mixture makes the engine operation irregular and intermittent.