The officer test is called the ASTB. This test consists of several subtests: Math Verbal, Mechanical, Spacial, Aeronautical Info + two biographical parts. You can find study books called ARCO Military Aviation Tests. I personally prefer the ASTB gouge off this site. It helped me alot for the ASTB. After reading this go back to this websites home page then scroll down towards the bottom and look for "ASTB GOUGE" this will then give you instruction on where you need to go from there to find and print the gouge. Study all of the info and know how to do each problem, efficiently. Remember you have to hurry through the test. GOOD LUCK!