The ARCO Military Flight Aptitude Test book, which can be found at most libraries and bookstores, is also a valuable asset, especially for the Spatial Apperception section. It is highly recommended that applicants obtain a copy.
Below are several links that will aid in you preparation for the test. The aviation and nautical terms are a common problem for test takers not familiar with the Navy/Marine Corps, so use some of these links to lean about Naval and aeronautical terminology.