First, take a pre-test. You can buy books at the bookstore or likely find one on-line. Just knowing what the format looks like is valuable. Next, practice going at a decent pace. This is a timed test. It's not very aggressive timing, but if you try to be extra, extra careful and triple check every answer, you will run out of time. Third, don't be afraid to guess. If you can narrow a problem down to two or three possible answers, pick one.