Just took the ASTB this morning, scored a 50 on the OAR. I'll be getting the rest of my results on Monday. didn't really put much time into studying except for the Aviation/Nautical stuff but studying for the math mechanical portions more definitely would have helped.
Math: The math portion was basically all fractions, averages, and time/distance stuff. No geometry, probability, or percentages. I don't know how I did on this portion, I really wasn't prepared.
Reading: Super easy, skim through the answers and see what matches the text, have a basic understanding of what the passage is trying to say. Use deductive reasoning
Mechanical: Lots of questions about leverage and weight distribution. Didn't get any questions for gears, mechanical advantage, or electricity. There was one question for the Bernoulli effect which I got incorrect because I accidentally clicked on the wrong answer
Aviation/Nautical: There were some questions on here that I had never seen on the gouges. One asked about what kind of ship wasn't a "boat/ship", kinda confused me. The rest consisted of airplane functions and many questions about boats. Only one or two questions relating to Naval history.
UAV: This one is extremely easy if you know how to use a compass. I drew out a little compass and just rotated it whichever way I needed to. Got em all down pretty fast.
Stick/Throttle: This portion was fun...
Dichotic listening was pretty easy. If you wanna practice for this, put some headphones on and watch this video:
then open a word doc on your computer and type the letter A with your left hand when you hear a word with an M and type the letter L with your right hand when you hear a word with a P.
If you've played flying video games or simulators before, the targeting exercise shouldn't be too bad. Unfortunately I spent half of the first exercise figuring out the sensitivity. Just focus on getting used to the stick sensitivity during the practice portion.
Something that helped me for the simultaneous targeting exercise was sitting back to get a better overall view, relaxing the muscles (I found that I started to tense up if I started to get off target) and using peripherals for the throttle portion.
For the emergency procedures, I just wrote them down beforehand and stuck em right below the screen so I didn't have to take my eyes off the screen.