Discuss NFPA CFPS Exam Topic 3 Question 28

What is the occupancy factor used by the Insurance Services Office (ISO) for computing required fire flow for C-3 (Combustible)?

A0.75

B0.85

C1.00

D1.15

Suggested Answer: B

The occupancy factor used by the Insurance Services Office (ISO) for computing required fire flow for C-3 (Combustible) is 0.85. This means that the combustible occupancy has a moderate fire load and requires 85% of the fire flow calculated for the same building with an ordinary occupancy. The occupancy factor reflects the influence of the contents and activities within the building on the potential fire severity.The ISO assigns different occupancy factors for different types of occupancies, ranging from 0.60 for low fire load to 1.75 for high fire load12

Guide For Determination Of Required Fire Flow 06-06-20141

Guide For Determination Of Required Fire Flow 07-20052

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12 comments · newest first

Brandon 1 month ago

I feel like it’s A) 0.75. Lower factor for less risk, right?

Romana 1 month ago

I’m leaning towards C) 1.00. Full occupancy makes sense for fire flow.

Buddy 1 month ago

I think it's B) 0.85. Seems reasonable for combustible materials.

Raylene 2 months ago

I agree, 1.00 makes sense for combustible materials.

Sophia 2 months ago

Wait, are you sure? That seems high.

Evangelina 2 months ago

Definitely 1.00, that's standard.

Rodrigo 2 months ago

I thought it was 0.85!

Elroy 2 months ago

It's 1.00 for C-3, right?

Altha 2 months ago

I remember discussing the different occupancy factors, and I think C-3 was 1.00. It just makes sense for combustible materials.

Bethanie 3 months ago

I honestly can't recall the exact number. I thought it was either 0.75 or 1.15, but I’m not confident.

Veronika 3 months ago

I feel like I practiced a question similar to this, and it might have been 0.85. That seems familiar.

Yolande 3 months ago

I think the occupancy factor for C-3 is 1.00, but I'm not entirely sure. I remember it being a standard value.

NFPA CFPS Exam - Topic 3 Question 28 Discussion