For the written expect only 1 or 2 flight plan questions, and a few weight and balance questions. My test was mostly Wx and FAR's with a few performance questions in there. Then it had 1 major flight plan question, and a couple on approach charts. Probably had a few of those pallet weight and balance questions and as well as the % Mac ones as well.
Pretty much the entire test is random. But for the most part the test was mainly FAR's, WX, and Charts with a hand full of the other stuff.
Remember, you only need to get 56 right on the written test to pass with a 70 so don’t stress too much about it.
We had people in our class fail the pratical. They had to take it over...a couple of them had to take it more than twice. But, hey that was over 15 years ago! (I'm getting old...fast!) :0