Mechanical aptitude tests assess your ability to learn and determine the level ofcommon sense that you possess. Some people hate hearing the phrase “common sense” because it’s a subject that’s not taught in school. Common sense applies more to mechanical aptitude than any other type of aptitude tests. We should mention that mechanical aptitude often involves math. If your math skills are rusty, you might want to first try our free online Math Aptitude Tests. A typical mechanical aptitude question might state that a bolt has 20 threads per inch and ask how many times you would have to turn a wrench to move the bolt one inch. If there are 20 threads per inch, you would have to turn the wrench 20 times. That’s common sense with a little applied mathematics. Below are the Mechanical Aptitude Tests that we currently offer.