A tandem truck is a truck with two drive axles.
It could be either. Tandem simply means that the power unit has two drive axles which operate in tandem. It's common in both articulated and straight trucks.
A Class 8 truck is a vehicle with a Gross Vehicle Weight Rating of over 33,000 lbs. Single axle trucks with an additional lift axle, tandem axle trucks, tandem axle trucks with additional lift axles, and tractor-trailer dumps are all Class 8 trucks.
They come in many sizes and configurations. They could be single axle trucks, tandem axle trucks, tandem axle truck with additional lift axles, tandem axle trucks with a twin steer setup (and these may also have additional lift axles, as well), and even tractor-trailers with mixer trailers. You'd have to be a little more specific as to which one you had in mind.
As many as it was built with. Peterbilt manufactures a wide range of trucks.. everything from single axle straight trucks to tandem axle straight trucks and truck tractors, heavy haulers with additional tag axles, etc.
The meaning of TA on the 207 trucks is tandem axle. To find the horsepower of the 207 trucks the information can be found online, but it is listed that the horsepower of a 207 truck is 207.
Depends on the specifications of the collection trucks, as well as the dimensions of the trailer, and tare weight of the vehicle. Weight wise, a transfer truck, at best, could legally haul the weight of the payload of three tandem axle collection trucks - collection trucks are quite heavy, so transfer trailers often are, as well.
This is typical for tandem axle trucks. Two axles are live axles, and the driveshaft goes into a power divider. The power divider supplies power to both axles.
Tandem Trunk is a trunk circuit which connects a tandem switch to another tandem switch or to a telephone company central office.
Even though a lot of the Lowe's trucks don't require a CDL (single axle box trucks), they typically require delivery drivers to have a CDL, so that they can be flexible enough to do deliveries in either type of truck (either the single axle box truck or the tandem axle flatbed trucks).
Dump trucks come in many sizes and configurations. Additionally, vehicle weight laws vary greatly between countries. We would have to have some idea of what configuration and jurisdiction you had in mind. Configurations of dump trucks would include single axle, tandem axle, tandem axle with twin steer, tri-axle, quad axle, quint axle, centipede, tractor-trailer end dump, etc.
The length from the middle of the steer wheels to the center point between the drive tandems (for a tandem truck) or center of the single drive axle (on a single axle truck).
Dump trucks come in many shapes and sizes, and the same holds true with dump bodies. For a tandem, 13 - 15 tons is typical.