The flag button is your friend. Don't spend more than a minute to minute and a half on the problems. There are usually 2 off the wall answers and try to narrow them down to 50/50 if you don't know them, flag it and move on, come back and guess if need be. Remember, this test only calculates the questions you answered, so guessing is a good strategy if you can increase your odds.
Like was previously said, it's not about testing knowledge. The spatial problems just get easier with practice, you really need to be able to sail through those..the aviation questions are basically right out of a Private Pilot's License test book...go find one of those. It's useful for some of the basic things like "What color are taxiway lights?" "What color is a military field's rotating beacon?" "Overtaking an aircraft, pass on the right." etc.. Also just learn the basics of the airplane, what an aileron does, rudder, etc. theory of flight (thrust, drag, gravity, lift), Bournoulli's Principle and just keep it at a basic level.
The reading portion gets people too, you have to learn to skim and be able to pick out the main points to answer the questions. If you read every line carefully in fear of getting it wrong, you'll run short of time.
