You only have to study the last chapter or so (maybe 20 pages). It's all complete non-sense and has nothing at all to do with safely driving a 26,000+ pound RV. The written test is the same non-sense like in what year did they require tail lights, how far off the ground must lights be installed, if you are driving a farm tractor on the highway, are headlights required, what color lights are required on the read roof of a vehicle? Then you take the road test which is driving down some side streets, going on and off and on ramp and backing the RV 40 feet in a straight line. I have heard that some required that you parallel park the RV but that was not a requirement when I took the drive.
What I post is my 2 cents and nothing more. Please don't read anything into my post that's not there. If you disagree, that's OK.
Can't we all just get along?