Only if the Gross Vehicle Weight Rating is over 26,000 lbs. (18,000 lbs. in New York State), or if it's either hauling hazardous materials, or else is designed to transport more than 15 passengers (including the driver).
Yes, you will need insurance to drive with a CDL license.
It depends on the model. You need a CDL to drive one that bends in the middle or is over a certain length
If the vehicle requires a CDL in service, it'll require a CDL for the test drive.
Yes you do need a CDL License to drive a bucket truck.
No
no
No
No, just to drive it.
If it's a truck which anyone else would be required to have a CDL to drive, then yes.
CDL... Commercial driver license.. Think about it.
No... to drive a bus unsupervised, you need an unrestricted, full-on CDL license, with a passenger endorsement. You may not legally operate a bus - loaded or empty - otherwise.
Anything defined as a CMV will require a CDL, regardless. So if it's pulling a trailer, yes, it will require a CDL.