I took this exam on Monday too. I thought the electrical was pretty easy. In the dwelling unit demand feeder question it did have sort of a calculation question because if you didn't know that a 10kw range calculates as 8kw then you would have gotten the wrong answer. Also, you had to have known that a clothes dryer calculates as 5kw. No there weren't questions like, what's the demand factor on a service for (20) 16kw oven-ranges nor were the any questions concerning demand factors for 4 or more appliances fastened in place. I was well prepared and did well.
The fire alarms was a bit of pita for me. One question I could not find the answer to was: Given: 4 story warehouse where people will be working during the day, where will smoke detectors, or Fire Alarms (I do not remember which one it was), need to be located?
A) On every other level
B) On every level
C) On every level that has more than 10,000 square feet of work space
D) On every level less than 10,000 square feet of work space
The answers given were something like that and I chose B, on every level, because it just made sense to me.