I always find one or two questions frustrating... The questions and information about the menu boards are not always aligned. Some of the pictures of things you have to identify are not real clear. I typically miss one question every time I take the thing and have to figure out which one it is.
Hard work builds character and homework is good for your soul.
I find that some of the questions can only be answered by someone who has already done the shop or by guessing correctly. I do not remember which one it is but the answer is not in the guidelines at all.