I got 98%. The only one I got wrong was the governor, because I assumed
the ring was fixed and the shaft could move.

A lot of the questions were ambiguous though, and could have multiple
interpretations. I got lucky there, because the alternate (or more
correct) answer wasn't one of the options.

One of the lever questions was just plain wrong, IMHO.

--
-Ed Falk,
http://thespamdiaries.blogspot.com/