How to Prepare for Testing Upon Entering Electrician Apprenticeship Program

Hi, I'm interested in entering the electrician field due to my extreme interest in renewable(alternative) energy and low-voltage and communication applications. My basic question is as follows: prior to taking the "placement/compass" test for consideration to be allowed into the program, what are some pointers or guide lines that someone could offer/suggest to help prepare me better for the test. I wouldn't want to walk into the test "blindly" and do poor therefore placing myself further down the list for acceptance into the program. I recently purchased "basic electricity" (prepared by the bureau of naval personel) and plan on getting back into calculus and trigonometry. I have been out of college for years and feel quite rusty in all directions. Any suggestions would be greatly appreciated on what kinds of questions/problems I might be facing once i go to take this test. Thank you so much for your time and help (in advance)