A used car needs a wheel alignment. Which technician would usually complete this operation?

The correct response identifies the steering and suspension technician as the individual responsible for completing a wheel alignment. This is because wheel alignment is inherently linked to the suspension and steering systems of a vehicle. These systems work together to ensure that the wheels are properly oriented with respect to the vehicle's frame and the road surface, allowing for proper handling, tire wear, and overall performance.

A wheel alignment typically involves adjusting the angles of the wheels, which includes camber, caster, and toe settings. These adjustments are crucial in ensuring that the vehicle drives straight, and the tires wear evenly. The steering and suspension technician possesses the specific skills and knowledge required to diagnose and correct any issues related to these systems.

In contrast, the other technicians listed focus on different areas of automotive repair. An engine technician specializes in the vehicle's engine components, an electrical technician deals with the car’s electrical systems, and a brake technician concentrates on the braking systems. Therefore, while all these roles are essential in vehicle maintenance and repair, only the steering and suspension technician is appropriately trained to carry out wheel alignment tasks.