One thing to keep in mind is that every time you save your quiz, after submission, it goes back to the end of the line. If you are a 'fiddler' who can't resist going in and just tweaking a bit, you may be slowing down the acceptance of your quiz.
Another thing to check is that you have actually resubmitted a quiz. I have gotten notes from authors, asking if their corrected quiz will EVER get online, who never resubmitted. Editors won't go looking for your quiz - if it is not submitted, it won't go anywhere.
You could also keep in mind that, on the whole, if a quiz has already been looked at by a specific editor, other editors in that category will not edit that quiz. This is by no means a hard and fast rule, but is very much a general trend.
Something else that slows down quiz acceptance is if a quiz is hard to categorize, or takes an unconventional approach to a subject. We sometimes need to discuss where to put a quiz, or how to fit a unique approach into our needs. Discussion takes time, due to time zones, and real life interfering with editing.
So, knowing just where your quiz is in the queue doesn't really give you all that much information after all. Double check that you did in fact submit it, and then just sit tight.