To my knowledge, the Accuplacer test is a placement test. It tests your present knowledge, so the college can intelligently place you in the best course for you to start in. It is meant to be an "accurate placer", hence the name.
There is no "passing" or "failing" a placement test. The test doesn't "score" you; it measures what you know at the moment. Then the college compares what you know -- where you are mathematically -- with the courses on offer. Your advisor will then let you know the course with which you should begin your studies.
About the only thing you could do "wrong" with a placement test is accidentally guess too many of the multiple-choice questions right, and "place" into a course for which you're utterly unprepared. From experience, I know that the result would not be pretty.
For a discussion of placement tests, try here