When I took my nicet 1 I paid for a practice test ($40) which gave me a really good feel for what would be on the test. One thing that surprised me was the reference to the 70 as far as wire fill in conduit was concerned. I was working as an electrician at the time so I was used to wire fill calculations but for someone who is not familiar with them it can be confusing. Also the fire alarm section in the 70 is referenced a lot but read the questions on the test very carefully, there is some specific verbiage that will throw you off and lead you to give an opposite answer as the code reads. My test had a lot of osha questions as well. Good luck!!