Fifth wheel.
You call it a semi because it pulls a semi trailer.A semi is a type of trailer. A semi-trailer, as opposed to a full trailer, means it only has axles at the rear of the trailer and a full trailer has axles at the front and rear of the trailer. We call these in the UK "drags", as in wagon and drag, where the wagon that pulls the drag can carry a load on its own, whereas the semi-trailer truck, or tractor unit cannot carry anything without a trailer.
That depends on what type of trailer. They range from around $30,000 to over $100,000.
The type of tractor trailer that can hold the heaviest loads is a Semi-Trailer truck. This is the heaviest truck that is allowed on the roads.
A semi accident is a type of road collision involving a semi-trailer truck (also known as a tractor-trailer) and other vehicle(s). Depending on the severity of the incident, semi accidents can be fatal.
A bobtail truck is a tractor-trailer truck where the trailer has been removed, leaving only the cab or tractor portion. This type of truck is often used for short-distance or local deliveries when a full trailer is not needed.
A multi axle truck, refers in most occurrences, to a type of trailer that is being pulled behind a semi. In some instances a semi may be pulling one trailer behind it and other times it may be pulling two trailers. On each trailer there are two axles which attach to the tires. So if you see a sign that says $.50/axle and a semi truck is pulling a trailer, he will have to pay two dollars. One dollar for his own semi truck which has two axles and another dollar for the trailer that he is hauling.
Because the truck alone is only half the unit, not complete with the trailer. Also, because it is based on the type of trailer. A "full" trailer has wheels at the front as well as at the rear. A "simi-trailer" only has wheels at the rear, and its front end is supported by the towing vehicle.
I suggest you purchase a receiver type hitch. They come with complete instructions.
The hitch on my 2002 comes with a 4 pin flat plug. But it really depends on the trailer plug. There are adapters for the 5 pin round plugs but you need a brake controller if your trailer has brakes.
"5th wheel"
Family Feud Answers: Bus Semi Truck Limo Van SUV RV Tractor Trailer
Use a Class III ball hitch (2" ball) as a minimum.