I went through several stages starting with the morning exam. The first several problems, i thought i might have been given the wrong test booklet. They were not really core mechanical engineering problems. I panicked a little and thought, "whoa...if there are more like this, i might be in trouble". Then things kind of got back into what I feel are more related to ME stuff. If I were to guess, i'd say I felt good about 65% - 75% of the problems.
In the afternoon, things really seemed to be more in my lane. Problems that you would expect for a mechanical engineer with a little seasoning. There were still several that I made an educated (or even non-educated) guess on, but i'd say I felt good about 75 - 80% of them.
Now that I've passed, I'm just glad and thankful that I don't have to take it over again. It was an experience, that's for sure!