I felt really confident on the morning portion and fairly confident on half of the afternoon portion. The afternoon portion was definitely more difficult for me, but I was able to narrow it down to atleast 50/50 chances on the problems I wasn't sure of. I don't feel terrible about it, but I don't feel confident about it. I felt pretty dumb after going through the whole morning portion using the fine print psychometric chart in ASHRAE Fundamentals, I didn't notice the blown up one on 11x17 attached at the back of the answer booklet for use until I had already finished all the morning problems and was looking through the remainder of the pages in the answer sheet.