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The _____ is/are the connecting link that transfers the up-and-down motion from the lifter to the rocker arm.

A. Camshaft
B. Crankshaft
C. Piston rings
D. Rocker arm

Answer :

Final answer:

The a) camshaft is the component in a gasoline car's engine responsible for transferring the up-and-down motion from the lifter to the rocker arm, which is part of the engine's mechanism for operating the valves.

Explanation:

The connecting link that transfers the up-and-down motion from the lifter to the rocker arm is the camshaft. In a gasoline car's engine, mechanical linkages transform one type of motion into another. For example, a connecting rod changes the linear motion of the piston into circular motion of the crankshaft.

Similarly, the camshaft's rotation, synchronized with the crankshaft via gears, specifically targets the operation of the engine's valves through the use of followers. These followers, acted upon by the camshaft, push on the valves or, via pushrods, act on the rocker arms to open and close the intake and exhaust valves in time with the engine's operation.

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