Take it from someone who took it less than 24 hours ago, it is not. The best idea to get you prepared for the question bank is to pick up an SAT prep guide and study the verbal/math stuff in there. Additionally, the officer candidate tests book, also published by ARCO, has more questions (although they're quite easy and not too representative of the actual test) on the verbal analogies section through math knowledge. I bought yet another book put out by ARCO, Mechanical Apptitude and Spatial Relation tests which helped me with the mechanical comprehension, block rotating, block counting, and hidden figures.
So, with all of those books, the only sections of the AFOQT that are left "un-studiable" or havent been covered are the electrical mazes and table/scale reading. Anymore questions (keeping the integrity of the test in mind), feel free to PM me.