After you pass your CDL written test, you will have to pass a Road Skills Test. This webpage will help you do that.
The instructors have a sheet of paper which they record your results on. You can view both sides of it here front back.
To further assist you in passing this test, I offer this drill. If you listen to the drill several times, you can pound it into your brain. The drill is an audio book on CD which you can listen to over and over until you memorize it. By hearing it many times, you will understand the drill and what the instructors are trained to look for and grade you on. You can download an mp3 or order an actual CD that you can pop into your CD player and listen to. The cost is only $5.00 including shipping.