Welcome to ExamTopics
ExamTopics Logo
- Expert Verified, Online, Free.

Unlimited Access

Get Unlimited Contributor Access to the all ExamTopics Exams!
Take advantage of PDF Files for 1000+ Exams along with community discussions and pass IT Certification Exams Easily.

Exam CFPS topic 1 question 7 discussion

Actual exam question from NFPA's CFPS
Question #: 7
Topic #: 1
[All CFPS Questions]

The entrainment of air from the surrounding atmosphere in a rising fire plume has the effect of:

  • A. decreasing the total mass/volume of the plume, cooling the plume, concentrating the fire products.
  • B. increasing the total mass/volume of the plume, heating the plume, reducing the concentration of fire products.
  • C. decreasing the total mass/volume of the plume, heating the plume diluting the concentration of fire products.
  • D. increasing the total mass/volume of the plume, cooling the plume, diluting the concentration of fire products.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️

Comments

Chosen Answer:
This is a voting comment (?) , you can switch to a simple comment.
Switch to a voting comment New
KhalidAwan1
6 months, 1 week ago
The turbulent flow at the interface between the hot (buoyant) fire plume and the surrounding cold air creates vortices which entrain fresh air into the plume, controlling the diffusion flame combustion characteristic scales and oscillations.
upvoted 1 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
Loading ...