Supplemental inspection practice
Interactive Truck Inspection Lab
Choose an inspection area, then touch the numbered markers. Zoom and move the photograph to study each component.
Touch a marker to inspect that component. Drag to move after zooming.
Practice progress0 components reviewed
Image credits and methodology
Main vehicle photographs © Leonardo Corredor, used with permission. Employer, fleet, and plate identifiers have been removed from exterior photographs for privacy. Supplemental component photographs: Panoha, licensed CC BY-SA 3.0 through Wikimedia Commons. Component descriptions are general educational guidance and must be checked against the vehicle manufacturer, employer procedures, current regulations, and the applicable state CDL manual.