Although the exact proper time varies with engine design, ignition must occur_____.
A)just before the end of the compression stroke
B)just after the beginning of the power stroke
C)just before the beginning of the exhaust stroke
D)just at the end of the intake stroke

Question

Quizplus · Accepted Answer

Ignition in an internal combustion engine must occur just before the end of the compression stroke to allow the fuel-air mixture to reach its maximum combustion pressure at the right moment for efficient power generation.

Although the Exact Proper Time Varies with Engine Design, Ignition