I bought the "Aviation Flight Battery Test" study guide that is printed by ARCO. You can find this book at any large bookstore or online. Make sure you do well in the math, mechanics, aviation knowledge, and spatial appreception section. I know that these areas pretty much cover the whole test, but they are important. The ARCO book will give you detailed examples of each section of the test. Remember that if you don't do well you can retest up to 3 times. Be truthfull in the personal profile portion of the test. Many people try to out-think this part and they don't do to well. The Navy/Marines are looking for the aggressive/risk taker type to pilot their aircraft.
Best wishes
Moses Smith