CDL Tanker Endorsement Practice Exam

What is likely to happen if the front wheels of a tank truck begin to skid?

1. You will reverse direction immediately

2. You will continue in a straight line

3. The truck will spin out of control

4. You will suddenly stop moving

The correct answer is: You will continue in a straight line

When the front wheels of a tank truck begin to skid, the vehicle is likely to continue traveling in a straight line. This happens due to the loss of steering control, which occurs when the front tires lose traction with the road surface. As a result, even when the driver attempts to steer, the truck follows the path determined by the rear wheels and the momentum of the vehicle. In the context of a tank truck, which has a high center of gravity and is often loaded with liquid that can shift, maintaining straight-line stability can be particularly challenging when skidding occurs. This can lead to potential hazards like jackknifing or rolling over if not managed properly. Understanding this behavior is crucial for tanker operators to take corrective actions effectively, such as easing off the accelerator and avoiding abrupt steering movements to regain traction.