Question

mechanical components
the mechanical components that provide power to drive the car can be found in the engine block.

• the pistons close off the combustion chambers at the top of the block/in the cylinder head, from the oil pan. the pistons also transfer the power of the combusted gases to the connecting rods.
• the connecting rods transfer the reciprocating movement of the pistons to rotational movement of the crankshaft.
• the crankshaft transfers rotating movement to the transmission and drive wheels.
• the camshaft(s) open the intake and exhaust valves. the camshaft(s) is/are driven by the crankshaft.
• the intake and exhaust valves open and close off the intake and exhaust ports.
• the flywheel is a large, heavy wheel attached to the rear of the crankshaft. it stores/releases rotational energy to keep the engine rotating smoothly and provides a ring gear for the starter to engage into for starting the vehicle.
• the vibration dampener (harmonic balancer) is attached to the front of the crankshaft. it removes harmonic vibrations throughout rotational movement of the crankshaft.
• the oil pump supplies pressurized oil to the engine.
• the water pump circulates coolant through the engine and radiator.

what is the function of the connecting rod?

• to operate the valves.
• to operate the camshaft.
• to transfer the movement of the crankshaft to the piston.
• to transfer the movement of the piston to the crankshaft.

Explanation:

The text clearly states "The connecting rods transfer the reciprocating movement of the pistons to rotational movement of the crankshaft."

Answer:

To transfer the movement of the piston to the crankshaft.