Christi and I both took our Class B Non Commercials just recently after waiting almost a year because of scheduling issues. We had Arkansas licenses which were valid and Arkansas allows motorhomes to be driven on a regular Class C license without any other restrictions.
We had taken the written test, which is only across one chapter, maybe 14 or 15, last year, but could not get a driver's test in Livingston. Since they could not take our licenses, we were still legal and drove on, to test another day. However, the written test is only valid for 90 days.
So we returned through Amarillo this fall and retook the written. However, they could not schedule driver's tests, it was first come, first served, and we did not particularly want to stuff the rig in Amarillo traffic in rush hour traffic to take driver's tests.
We found that the DPS in Dimmit would allow us to schedule the tests which we did. Amarillo told us do not show up driving the rig, but did not realize we had valid Arkansas licenses and were not illegal. Had we had Texas licenses looking for an upgrade we would have been.
In Dimmit, TX, which was not much bigger than some Sam's Club parking lots, we had to do a air brake leak down test, have all the lights and wipers working, (I was not asked about license plate lights), and off we went. She wanted lots of head movement looking for traffic so I just do what I do on FAA flight exams, explained all my movements as I made them. When questioned about speed, I explained we drive no faster than 62, generally, and can more easily retain control and react to traffic at that speed.
I had points taken off for not signaling a turn before getting to a stop sign and for making a turn one handed with the spinning wheel on the steering wheel. She told us we would not be required to parallel park which makes a lot of sense to me since a parking spot is far too short for a motorhome anyway. And while we were towing when we got there, I unhitched before I went to get the examiner.
So there you go - you pays your money and you takes your chances! Piece of cake and over in less than 30 minutes ( the amount of time between appointments).
Based on my knowledge of driver's exams as a police officer and flight exams as a pilot, the examiner is typically looking for you to be confident and in control at all times. He/she has their points list, but if you drive like you know what you are doing, you should be fine. Another tip - take your test in the morning before your examiner has had a bad day and remember there is an expectation that a certain number of examinees will fail. Increase your odds! 8)