BM: Looking for clarification on problem 151. Why do you use the full length of the room (12.8m) when the strobe is centered on that wall (6.4m)? Wouldn’t this make the farther distance for the sound to travel be the 9.2m? Yielding answer b, 34cd?

BM: ​Problem 174 I also believe should not include Type V (000) per NFPA 101 Table 12.1.6. 1-story is not permitted for the given occupant load.

MF: ​Sorry I should have combined this with the previous email. For problem 174 when I look at the table Type V (000) construction 1 story non-sprinklered is only allowed for 300 or less people. If its sprinklered then 1story is allowed for less than 1000 people and 2 stories for less than 300 people. Am I looking at this wrong?

BM: Submitted Comment: Problem 172 (I think) should use a coefficient of 8.7 m^/g per NCEES 3.6.20 for flaming plastic fuels. See equation 33.28 in HFPE 5th pg 1081.