Which of the following components should have no corrosion during an inspection?

Battery terminals should have no corrosion during an inspection because corrosion can hinder the electrical connections between the battery and the vehicle. Corroded terminals can lead to poor performance of the vehicle's electrical systems, which may result in starting issues or malfunctioning accessories. It's crucial for the battery terminals to maintain a clean and corrosion-free connection to ensure the reliable operation of the vehicle's electrical components.

In contrast, while wipers, wheel rims, and suspension components can be subject to wear and may require maintenance, they are not as critical as the electrical connections provided by clean battery terminals. For instance, wipers may need to be inspected for wear or streaking but do not require a corrosion-free condition for their basic function. Similarly, wheel rims may be painted or coated to resist corrosion, but some surface rust could be acceptable as long as it does not compromise the structural integrity. Lastly, suspension components may have protective coatings, and minor rust can often occur without immediate concern, as long as it does not affect the performance or safety of the vehicle.