Now, if you want, you can sit in the room with the screen on the last question and just... sit there... while you wait for the time to run out. But I wouldn't recommend it.
Once you commit on the last answer, the test will immediately ask if you want your 10 minute break. If you take it, you have to leave the room. If you don't take it, you start the next section immediately.
It should go without saying but I'll say it anyway: TAKE THE BREAK!












