Answer:  Let us understand the basic rules of the game. It is my job to coerce you into studying all the material I think is important. If I don't consider a topic important, then I don't waste our limited time on it. Therefore anything I spend time on I consider important. It is also my task to determine whether you have learned the material. I do this by giving exams in which I ask a representative set of questions. (I don't have time to ask every possible question.) If you have learned all the important material, you should be able to answer the representative questions. If I tell you in advance which questions are on the exam, it

a) spoils the surprise (akin to spoiling Xmas)

b) tempts you to study only the material on the exam. (As hard as it is to believe, given the opportunity, some less motivated individuals will actually do this.)

c) effectively decreases the content of the course.

This amounts to robbing you of the full content of the course for which you paid. I would never do this. To see that you get your (and the taxpayers') money's worth, I will not disclose the detailed contents of any exam. To do so would cheat you of the full measure of your tuition.