CDL Vehicle Combination Practice Test

To prevent rollovers while driving, what is a key strategy?

1. Accelerate through turns

2. Keep the load centered

3. Use higher ground clearance

4. Increase speed on straight roads

The correct answer is: Keep the load centered

Keeping the load centered is crucial in preventing rollovers while driving a combination vehicle. When the load is distributed evenly and positioned at the vehicle's center of gravity, the vehicle maintains better stability during maneuvers, particularly during turns. An off-center load can lead to an imbalance, causing one side of the vehicle to lift and potentially result in a rollover. In a combination vehicle, the dynamics of both the truck and the trailer come into play. A centered load helps ensure that the trailer follows the tractor effectively, minimizing the risk of swaying or tipping. Properly securing and positioning the cargo plays a significant role in safe driving, as it directly influences how weight shifts during acceleration, braking, and turning. Other strategies like reducing speed while turning and maintaining a lower center of gravity through proper loading are also effective, but keeping the load centered is fundamental to ensuring overall vehicle stability and safety.