NFPA Exam CWBSP Topic 2 Question 12 Discussion

Actual exam question for NFPA's CWBSP exam

Question #: 12
Topic #: 2

After reviewing an existing sprinkler system, it was determined that sprinklers were installed using NFPA 13 using the Ordinary Hazard Pipe Schedule method. The highest elevation of sprinklers is 28 ft (8.53m) and the system is fully monitored as specified by NFPA 13. What is the minimum pressure and flow required?

A500 gpm at 27 psi (1,900 L/min at 1.86 bar)

B850 gpm at 27 psi (3,200 L/min at 1.86 bar)

C500 gpm at 32 psi (1,900 L/min at 2.2 bar)

D850 gpm at 32 psi (3,200 L/min at 2.2 bar)

Show Suggested Answer

Suggested Answer: B

For a warehouse with the described characteristics, a design density of 0.33 gpm/ft is a common requirement to ensure adequate protection for Class III commodities on wooden pallets, taking into account the storage configuration and commodity type.

by Chaya at Mar 19, 2025, 03:11 PM

Limited Time Offer

25%

Off

Get Premium CWBSP Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Zana

1 months ago

I wonder if the sprinklers are installed in a way that they can actually reach the highest elevation. Might need to bring a ladder to check that out.

upvoted 0 times

Tresa

13 days ago

A) 500 gpm at 27 psi (1,900 L/min at 1.86 bar)

upvoted 0 times

...

Jeannetta

2 months ago

Well, this is a real head-scratcher. I'll just close my eyes and point - D, 850 gpm at 32 psi. What could go wrong?

upvoted 0 times

Madalyn

3 days ago

User 3: I agree, D sounds like the correct option based on the information provided.

upvoted 0 times

...

Ollie

6 days ago

Zena: Well, I'm not entirely sure, but that's my best guess.

upvoted 0 times

...

Barrett

10 days ago

User 2: That seems like a reasonable choice. The system must be designed to meet those requirements.

upvoted 0 times

...

Zena

13 days ago

User 2: Are you sure about that? It seems like a high flow rate.

upvoted 0 times

...

Son

18 days ago

User 1: I think the answer is D, 850 gpm at 32 psi.

upvoted 0 times

...

Serina

1 months ago

User 1: I think the answer is D, 850 gpm at 32 psi.

upvoted 0 times

...

German

2 months ago

Ah, the old NFPA 13 Ordinary Hazard Pipe Schedule conundrum. I'm feeling lucky, let's go with B - 850 gpm at 27 psi.

upvoted 0 times

...

Graciela

2 months ago

Hmm, 28 ft elevation and fully monitored system, that sounds like it needs a bit more pressure than the lower pressure options. I'll go with D - 850 gpm at 32 psi.

upvoted 0 times