CDL Vehicle Combination Practice Test

When making a right turn with a long trailer, what should a driver be wary of?

1. Hitting the curb

2. Understeering into the adjacent lane

3. Oversteering and losing control

4. Other vehicles staying too close to the trailer

The correct answer is: Hitting the curb

When making a right turn with a long trailer, a driver needs to be particularly cautious about hitting the curb. This is because long trailers have a wide turning radius and can easily swing out as the front of the vehicle makes the turn. The longer the trailer, the further it extends beyond the truck on the right side. If the driver does not judge the turn correctly, the rear wheels of the trailer may cut the corner too closely, leading to the possibility of striking the curb. In addition to being aware of the proximity to the curb, drivers should also consider other factors, such as the space around the trailer. Understeering into an adjacent lane can be a concern if the turning path is miscalculated. Oversteering can also lead to a loss of control if the driver misjudges the angle of the turn. Other vehicles staying too close to the trailer is another safety issue, as it can create a dangerous scenario during the turning process. However, the primary concern during a right turn remains the risk of hitting the curb, making it essential for the driver to use caution and ensure proper positioning when navigating tight turns with a long trailer.