When parking on an incline, which wheel chock arrangement is correct?

• A. Place only in front of one wheel
• B. Use chocks only on inclines
• C. Place on both sides of the wheels to prevent movement when parked.
• D. Do not use chocks on incline

Answer: (C)

When you park on a slope, the main safety goal is to stop the vehicle from rolling. Wheel chocks work by pressing against the wheel to hold it in place, but only one chock isn’t enough to block motion in all directions. Placing chocks on both sides of the wheels creates a barrier that resists movement whether the wheel tries to roll forward or backward. This is the most effective way to keep the vehicle stationary on an incline, especially if the slope or surface shifts a bit. If possible, position the chocks on the downhill side and against both sides of the wheel to maximize stability.