Test isn't that bad ,, Remember that they are different classification and make sure you take what you need ,, here is the only hard part you must do a hands on inspection and without proper knowledge and hands on experience with a truck your wasting your time books want teach you that . you must be able to point at different parts and explain what your checking for ,, oh yea The air brake test you better do it right or its a automatic fail
hard ,,,,,,,,,, not really passed all of mine first time but I have been around and drove trucks all my life