Yes
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.
No.
Yes, but there is a caveat - if you do this, the state of Wisconsin will put an "E" restriction on your license, which restricts you to CMVs equipped with automatic transmissions.
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.
The class of the Commercial Drivers License , A, B or C refers to the weight of the vehicle. When a person gets a CDL, they take the General Knowledge test.
If it's just the power unit, with no trailer attached, they can do it with a Class B. But they must have a CDL to take that vehicle on a public roadway.
Take the written air brakes test, and perform a road test in a combination requiring a Class A CDL which is equipped with air brakes.
Take and pass the written passenger test, and do a road test in a passenger vehicle. If you take your road test in a bus under 26,000 GVWR, you'll be restricted to passenger vehicles requiring a Class C CDL. If you take your road test in a single vehicle over 26,000 GVWR, you'll be restricted to operating passenger vehicles requiring a Class B or Class C CDL. You're really not going to find any Class A CDL passenger vehicles.
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.
A K restriction on a Commercial Driver's License (CDL) in Illinois indicates that the driver is only permitted to operate a vehicle that is equipped with an automatic transmission. This restriction is applied to ensure that the driver is not required to operate manual transmission vehicles, which may require different skills and training. If a driver with a K restriction wishes to operate manual transmission vehicles, they would need to take and pass the appropriate tests to have the restriction removed.
Class 3 truck with a rollback body? No, it doesn't require a CDL.