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NFPA Exam CFPS Topic 5 Question 7 Discussion

Actual exam question for NFPA's CFPS exam

Question #: 7
Topic #: 5

[All CFPS Questions]

For sprinkler design densities of 0.34 gpm/ft* (13.9 mm/min) or less, what minimal standard-response sprinkler nominal orifice coefficient should be used?

AK4.2 (Km=60)

BK 5.6 Km-80)

CK 8.0 (Km=115)

DK11.2(Km=160)

Show Suggested Answer

Suggested Answer: B

by Adolph at Mar 08, 2025, 11:33 PM

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Gregg

2 months ago

I remember studying this, and I think the answer is actually B) K 5.6 Km-80)

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Marvel

2 months ago

Ah, the age-old debate: 'K-factor, Km-factor, or just go with the flow?' *chuckles* I'm sticking with B. K 5.6 (Km=80) - it's the Goldilocks of sprinkler coefficients.

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Gearldine

2 months ago

Woah, this question is making my head spin. I'm just gonna go with A. K4.2 (Km=60) and hope for the best. What's the worst that could happen, right? *nervous laughter*

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Rolland

2 months ago

I'm not sure, but I think it might be D) K11.2(Km=160)

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Jacinta

2 months ago

Hold up, is this a trick question? I'm going with D. K11.2 (Km=160) just to be safe. Gotta cover all my bases, you know?

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Johana

28 days ago

Let's go with D then, better safe than sorry.

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Theodora

1 months ago

I'm not sure, but I would go with D as well.

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Ludivina

1 months ago

I think D is a safe choice too.

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Lavelle

2 months ago

Nah, I'm going with C. K 8.0 (Km=115) - bigger is better, right? Plus, it sounds more badass.

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Glory

2 months ago

User3: I'm not so sure, I think D might be a better option. K11.2 (Km=160) sounds more powerful.

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Trinidad

2 months ago

User2: Yeah, I agree. Bigger is better when it comes to sprinkler design densities.

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Melodie

2 months ago

User1: I think C is the way to go. K 8.0 (Km=115) seems solid.

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Coral

3 months ago

I think the answer is B. K 5.6 (Km=80) because that's the standard for low-density sprinkler systems.

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Leatha

2 months ago

Yes, following the standards ensures the sprinkler system will function properly in case of a fire.

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Quentin

2 months ago

I think we should always refer to the guidelines for sprinkler design densities.

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Jacquline

2 months ago

That makes sense, it's important to use the correct standard-response sprinkler nominal orifice coefficient.

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Reita

2 months ago

I agree, the answer is B. K 5.6 (Km=80) for low-density sprinkler systems.

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Eliz

3 months ago

I disagree, I believe the correct answer is C) K 8.0 (Km=115)

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Kimbery

3 months ago

I think the answer is A) K4.2 (Km=60)

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