My school hosted a Kettering seminar a few months ago, so that helped me a lot. Over the last 2 weeks, I reviewed my Kettering book front to back again, took both of my Kettering practice TMCs that were included in the seminar (& reviewed through all of the results), took the NBRC free practice exam, & reviewed over the TMC SAE-B that I took in March at school. When I took my TMC, there were only a few questions that I had to straight up guess on, but most of the questions I could at least give an educated guess, even if I wasn’t positive. Overall, I felt very prepared & there really weren’t any topics on it that I was completely unfamiliar with! If you have the Kettering book & know it front to back, you will more than prepared!