You could teach classes pertaining to the written tests, but you couldn't teach the on-road portion or any other portion of the training which involved actually operating the vehicle. CDL students on a permit must be supervised by a fully licensed CDL driver, and you can't even be in actual physical control of a CMV without a CDL.
Yes, you would. Without the trailer, you could operate it with either a Class A or Class B CDL.
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.
Not sure what you mean, exactly. Class A is considered the "higher" classification, yes. If you have a Class A CDL, you can operate vehicles requiring that class of licence or any class below that. You could operate a vehicle requiring a Class B CDL, for example, but a driver with a Class B CDL wouldn't be permitted to operate a combination requiring a Class A CDL.
It can be done.
If you are aware of the laws and have had practice, you can always try to get your CDL without taking a class. It's definitely not recommended though and would be better to help you pass it the first time by taking the class.
When I had my own business, they needed a Class A CDL and hazmat endorsement.
CDL classes are A, B, and C - there is no Class D CDL.
Depends on which Class of CDL. A driver with a Class C CDL is not licensed on that vehicle. A driver with a Class B CDL can drive that combination only if the GVW of the trailer is less than 10,000 lbs. A driver with a Class A CDL can drive it.
Yes.
Class 3 truck with a rollback body? No, it doesn't require a CDL.
All you'd ever need to know about becoming a teacher for CDL certification can be found at www.ctc.ca.gov/credentials/teach.html. In addition, make sure to check out private companies that can help you become certified to teach.
You can obtain a CDL class B license at your local DMV. To obtain a CDL class B license you are required to take several tests before obtaining your license.