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Exam CFPS topic 1 question 43 discussion

Actual exam question from NFPA's CFPS
Question #: 43
Topic #: 1
[All CFPS Questions]

Fire burns in three dimensional space, with flames attaching to inclined surfaces leading to a number of observed behaviors. Flames from a fire burning in a channel inclined at 10° above the horizontal will behave in a manner similar to:

  • A. A pool fire
  • B. A trench fire
  • C. A wall fire
  • D. A ceiling fire
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Suggested Answer: C 🗳️
by Saurabhootara at April 13, 2023, 4:47 p.m.

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lengocho
4 months ago
ANS: A. FPH 2-25
upvoted 1 times
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lengocho
4 months ago
ANS: C
upvoted 1 times
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Saurabhootara
1 year ago
C correct answer
upvoted 1 times
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Saurabhootara
1 year ago
Selected Answer: C
Flames attach to upward-facing burning surfaces inclined more than 15° from horizontal, making flame spread and heat flow along the incline much more like that on a vertical surface than on a horizontal one.
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Saurabhootara
1 year ago
Selected Answer: A
If the upward-facing burning surface is inclined less than 15°, flames are detached and much thicker, with the appearance and high heat transfer rates typical of pool fire flames.
upvoted 1 times
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