Is there a 50 question version?
We are going to be developing that early in 2016. For now, if you have a 50-question test, you can create a two-part test. I have created an answer sheet template for you here: http://get.quickkeyapp.com/wp-content/uploads/2015/12/30Q-Quick-Ticket-2-Sections.pdf
To use this, you would create two quizzes, one for the first 30 questions, and one for the remaining questions, up to another 30, for 60 questions in total. You will need to combine the results reports, of course, which you can do in Excel by creating "Itemization Export Report" which is available in the Reports button in the Quizzes list in your user dashboard in the Web app.
this is a bit of a workaround, but you'll only have to use it until we release the 50-question Quick Ticket in early 2016. I hope this helps!
Please let me know if you have any questions!