Applied for M.T. position and was called in for a mechanical aptitude test. The test consisted of 51 questions and a 70% was required to pass to the next step. There was also electrical and electronics on the test, but was only required if applying for the maintenance engineering technician position. Following the aptitude test, there was an interview with the skilled trades group, which consisted on a written portion and a practical portion. Very laid back since they know it's intimidating to sit in front of 8 very skilled workers. They work through the questions and see how much you know, then they walk through the training center and ask if you know how certain parts work/what they are. Definitely need to know pneumatic diagrams, at least a general understanding. Bearings are also a must know. They decided at the skilled trades group interview if you got the job or not.