What is a combination vehicle?

A combination vehicle refers specifically to a vehicle that includes a power unit, such as a truck or tractor, along with one or more trailers that are towed by it. This definition is essential because the operation and handling of combination vehicles differ significantly from other types of vehicles, especially when it comes to driving techniques, braking distances, and weight distribution. Understanding this definition helps drivers recognize the unique skills and knowledge required to operate such vehicles safely.

The other options describe vehicles but do not encompass the specific characteristics that define a combination vehicle. For instance, a vehicle only used for towing does not necessarily imply it has a trailer attached, and a vehicle that can carry passengers does not fit the definition since combination vehicles are primarily focused on transporting goods. Lastly, the option suggesting a maximum weight of 10,000 pounds does not apply, as combination vehicles can have gross weights exceeding that limit, especially when considering commercial use.