Quiz 2 - typo in question regarding alternate air source - and instead of an.
Quiz 1 - as a Solo Diver Instructor Trainer I take umbrage with the value of a dive buddy question. :P
Navigation was a bit jerky. On first question I clicked submit and it took me back to first question again. On fifth question I hit submit and it paused my test taking me completely out of the quiz. At least it paused my quiz and allowed me to go back in where I left off rather than leaving me with a mark of shame (a 40%, failing) on a basic knowledge quiz. :)