CDL Vehicle Combination Practice Test

Limited visibility and increased blind spots are significant hazards when reversing a combination vehicle. These vehicles, such as tractor-trailers or large buses, have a longer wheelbase and larger size compared to standard vehicles, which inherently creates challenges in visibility. The driver often cannot see directly behind them due to the size of the trailer and the configuration of the vehicle.

Additionally, the placement of mirrors may not adequately provide a full view of the areas to the sides and rear, leading to blind spots that increase the risk of collisions with unseen obstacles, pedestrians, or other vehicles. This makes it crucial for drivers to be extra cautious, use observation techniques, and rely on aides like spotters when reversing to minimize risks.

The other potential answers, such as faster reversing speed, increased tire wear, and excessive lighting from the trailer, do not directly address the immediate and inherent risks present when maneuvering a large combination vehicle in reverse. Recognizing and managing these hazards effectively is essential for safe operation.