CDL Tanker Endorsement Practice Exam

What should you be aware of when driving a tank truck with a high center of gravity?

1. Improved steering control

2. Increased risk of tipping

3. Enhanced braking capability

4. Lower fuel consumption

The correct answer is: Increased risk of tipping

When driving a tank truck that has a high center of gravity, understanding the increased risk of tipping is crucial for safe operation. Tank trucks, particularly those carrying liquid cargo, have a unique design that can make them more prone to rollover incidents than other vehicle types. The liquid inside the tank can shift during maneuvers such as turns or sudden stops, which can further raise the risk of tipping. This design characteristic means that when the truck is turning or navigating curves, the weight distribution and dynamics of the liquid can create a scenario where the center of gravity shifts significantly. If a driver is not cautious—taking turns too quickly or failing to account for this shifting—they could easily lose control of the vehicle, resulting in a rollover. Understanding this risk helps drivers adopt safer driving practices, such as slowing down during turns and assessing road conditions more carefully. Additionally, becoming aware of the implications of a high center of gravity aids in making informed decisions on route planning and vehicle operation. This knowledge is essential for anyone who drives a tank truck, ensuring they prioritize safety on the road.