you are sweating the written test way too much. If you want something to look at, there are probably 4 or 5 questions on Jepp's. Really nothing to specific, just the gamit of IFR knowledge. I studied Jepp's, and the ATP written and just browsed through what people has said on gouges and apparently did fine because I'm here. Nothing to lose sleep over, the people are very nice and its a very relaxed interview process. The best advice I read was to take some practice wonderlic tests. It'll give you a heads up and may save you some time on a very brief test. Just come in relaxed and without an attitude and you'll be fine.