Looking to sell unused copies of PPI's:
Mechanical PE Practice Exam ($75) - http://www.amazon.com/Mechanical-PE-Practice-Examination-3rd/dp/1591264170?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
Practice problems for the Mechanical PE Exam...
You won't ever pass by memorizing question types. Learn and memorize the first principles behind the concepts that are tested, and become proficient in modifying them for a variety of question types.