Answer :
Final answer:
The motion of the cam is transferred to the valves through rocker arms, which convert the camshaft's rotation into the linear motion needed to actuate the valve stems.
Explanation:
The motion of the cam is transferred to the valves through b) Rocker arms. In an internal combustion engine, the camshaft is geared to rotate in sync with the crankshaft. As the camshaft rotates, the cams (or lobes) push against the rocker arms, which in turn open and close the valves. These valves control the intake of air and fuel and the expulsion of exhaust gases in the combustion chamber. Rocker arms are therefore crucial mechanical components that translate the rotary motion of the cams into the linear motion required to operate the valve stems.
