I agree with all the comments here. This was my first time taking it and time was a scarcity when you have
so many questions that have so
many possible answers and so much detailed information. It felt more like I was tested on my ability to critically think quickly rather than actually being tested on Grading and Drainage. I found it much more focused on specifications in terms of how they are
organized. Knowing what goes on which type of construction document is key too with different types of plans in a drawing set, and I'm not entirely sure where to find this information. I got the Hopper book, but it scarcely talks about the different types of plans (if anyone happens to know where to find this information it would be greatly appreciated!) My main problem was over checking the math since the flimsy scratched up calculators they give you at pearson could easily fumble you.
My advice would be to read the question thoroughly, but go with your instincts.
Typically your first instinct is the right one, unless of course if you read or misinterpreted the question.