Getting closer to my exam on May 20th, I've compiled this list of sites that have free sample questions. A couple are full-blown 200 question exams. They are free to use - I hope they help you!
PMP Sample/Mock Exam List
Note: I am not affiliated with any of the above mentioned sites, and therefore cannot verify the validity of the responses. Use your best judgment. However, I found them to be VERY helpful for my own use. I hope they are for you, too. Now let’s pass that exam! J