Yes you do need a CDL License to drive a bucket truck.
No, just to drive it.
It depends on the model. You need a CDL to drive one that bends in the middle or is over a certain length
If it's a truck which anyone else would be required to have a CDL to drive, then yes.
If the vehicle requires a CDL in service, it'll require a CDL for the test drive.
If the truck has air brakes, for instance, that will require a CDL to legally operate it. The knowledge about air brake systems, pressures, and testing those systems before driving away is crucial to their operation and safety of others.
You only need a cdl license while driving a box truck if the gross weight of the truck is 26,001 or more. Most uhaul rental boxes are able to be driven without a cdl.
Well that depends what kind of truck you want to drive. For huge eighteen wheelers you do need a CDL. You can take classes at your local community college for a CDL license.
You would need a Class A CDL for Dump Truck. It's not as intense as more restrictive classes of CDL.
Yes
Depends. You can drive up to a Class 6 truck (up to 26,000 lbs. GVWR) without a CDL. Class 7 or Class 8 trucks require a CDL.
You can haul one without it.... so long as the GCWR of the truck/trailer combination doesn't exceed 26,000 lbs. with the trailer having a GVWR in excess of 10,000 lbs., a CDL isn't necessary.