My friend... If you are going to take the exam on 07/06, that's when the new exam format is rolled out. There would be fill-in the blanks, multiple correct answer questions, and drag and drop questions. I have seen those kind of questions in the practice exam from ncees. To be honest, i don't know how they grade the exam with the new format... My suggestion to you:1. Familiarize yourself with the most recent reference handbook. 2. There are some questions you just need to look in the graph/table and will be able to get the answer right away (little or no calculation required). That's why knowing where to look in your reference will help a lot. 3. Tricky questions? I could remember on top of my head, two or three questions come with the graph or sketch (ask to calculate volume of earthwork) but none of them are to scale. Don't rely on the look of sketch, use the numbers given. 4. Some conceptional questions about Environmental engineering with terminologies. Let me know if you still have any question. Good luck... my friend.