NCARB Practice Test - Fire wall vs Building Height

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Guga

August 03, 2025 16:28

In the question above, if I were to check this in the real world,

• ✕ B. I wouldn't look for separation in a single-occupancy building
• ✕ E. I wouldn't  (initially) look for column size in a warehouse project 
• ✓ C. I would check which building elements need to be fire-resistant.
• ✓ F. I would check if the floor area is code-compliant.

I was left with deciding between A and D

• A: I wouldn't check a single-story building height, as Table 504.3 has 40ft as the lowest overall height. I understand that, to know this, I would have to check the table. But....
• D: I would check firewall requirements, as it may be needed due to the flammable nature of the stored products

What am I missing here?

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  dmsylves August 03, 2025 17:28

  I'm definitely not a subject matter expert here... But I would guess that one of the key words in the problem is "preliminary?" To me, that says "what are the first things you're going to asses? Where do you start?" I can understand why you'd assume that a single-story warehouse shouldn't exceed 40 ft, but I think you also sort of answered yourself in your own question :) You wouldn't know that unless you checked the table, or already had the table memorized (which, why would you?) As far as why not D, I would think that based on the building typology, there wouldn't be many, or any fire walls within the building itself. It doesn't say there are multiple occupancies, so no need for separating fire barriers or partitions (which are different from fire walls). It's single story, so there's no circulation core that needs to be fire rated. Which only leaves exterior walls that need to be fire rated based on separation distance to other buildings. Since the question didn't specify anything like that, I think it's safe to assume that's not relevant to the question. I think it's also helpful to understand the difference between Fire Walls, Fire Barriers, and Fire Partitions. That's probably the real reason. Though I feel like that's really getting into the weeds. Hopefully, that's about as tricky/difficult as they come? 

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  Guga August 03, 2025 21:40

  Thanks,
  
  You are right. What got me confused was the distractor info about storing plastic products. In real world though, I would still go to the code to check what all that plastic stuff might require

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