Commercial Driver License (CDL) Class B Practice Test

What can happen if you do not have enough weight on the front axle?

1. It can cause the vehicle to fishtail while turning

2. It can make the steering axle too light to steer safely

3. It can improve fuel efficiency

4. It can lead to a tire blowout

The correct answer is: It can make the steering axle too light to steer safely

Having insufficient weight on the front axle, also known as a light steering axle, can significantly impair the vehicle's handling and safety. A properly loaded front axle is crucial for maintaining control and steering precision; if it's too light, the driver may struggle with steering responsiveness, making it harder to navigate turns and maintain straight-line stability. This condition can lead to increased difficulty when trying to steer, particularly in adverse road conditions or during sudden maneuvers. With a steering axle that lacks adequate weight, the tires may not have enough ground contact, reducing traction. This can cause issues such as drifting or swerving and making it harder to control the vehicle effectively. The importance of proper loading is highlighted in safety regulations and best practices for commercial driving to ensure optimal handling and safety on the road. In contrast, the other choices either inaccurately describe the effects of a light front axle or relate to outcomes not directly linked to axle weight, such as fuel efficiency. For example, weight distribution does not guarantee improved fuel efficiency and a blowout is typically related to tire wear or damage, rather than being directly caused by axle weight.