NCARB Project-Planning-Design Exam - Topic 5 Question 4 Discussion

Actual exam question for NCARB's Project-Planning-Design exam

Question #: 4
Topic #: 5

When considering the IBC requirements, an architect can increase the number of options from which to select structural materials for an office building by doing which one of the following?

AIncreasing the occupant capacity

BIncreasing the efficiency ratio

CLimiting the area of the building

DOmitting 2-hour fire ratings

Show Suggested Answer

Suggested Answer: C

Comprehensive and Detailed Explanation From Exact Extract:

Limiting the building area within allowable maximums based on occupancy and type increases the range of acceptable structural materials because larger buildings have stricter fire and structural requirements.

Increasing occupant capacity (A) increases code stringency.

Increasing efficiency ratio (B) is not an IBC classification.

Omitting 2-hour fire ratings (D) is not permitted and would reduce material options.

Thus, reducing building area allows more flexibility in structural material choices under IBC.

ARE 5.0 PPD -- Codes and Regulations, Building Materials and Fire Ratings

The Architect's Handbook of Professional Practice, 15th Edition -- Building Codes

by Celestine at Oct 06, 2025, 03:26 AM

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Shaun

17 hours ago

D) makes sense too. Fire ratings can restrict options significantly.

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Darell

6 days ago

I feel like A) is the best choice. It aligns with IBC flexibility.

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Clemencia

11 days ago

C) Limiting the area seems safer. Less risk with fewer materials.

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Chantell

16 days ago

I disagree, I lean towards D) Omitting 2-hour fire ratings. It opens up material choices.

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Venita

21 days ago

I think it's A) Increasing the occupant capacity. More people means more options.

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Micaela

27 days ago

C) Limiting the area seems counterproductive to me.

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Bulah

1 month ago

Wait, omitting fire ratings? That sounds risky!

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Velda

1 month ago

I recall that increasing efficiency ratios can sometimes lead to more material choices, but I can't remember if that's relevant here. Is it B?

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Wayne

1 month ago

Omitting fire ratings sounds risky, but could it really open up more material options? I’m leaning towards D, but I’m not confident.

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Marylin

2 months ago

I feel like we've seen a question like this before in practice exams. Limiting the area seems like it would restrict options, so maybe C is the answer?

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Enola

2 months ago

I think I remember something about how occupant capacity affects material choices, but I'm not entirely sure if it's A or not.

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Rodolfo

2 months ago

Forget the building, let's just build a giant hamster wheel and call it a day. Unlimited structural options!

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James

2 months ago

I think B) Increasing the efficiency ratio could also work.

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Arlene

2 months ago

Totally agree, more occupants means more options!

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Hannah

2 months ago

A) Increasing the occupant capacity is the right choice!

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Glenn

3 months ago

But B) Increasing the efficiency ratio could also work. More efficient designs can use diverse materials.

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Wava

3 months ago

Increasing the occupant capacity? Isn't that just asking for trouble? I'll stick with option C and keep things nice and compact.

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Teddy

3 months ago

Omitting 2-hour fire ratings? Yikes, that's a hard pass from me. Safety first, my dude.

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Selma

4 months ago

Limiting the area? Sounds like a recipe for a cramped, inefficient office space. I'd rather go with option B and maximize that efficiency ratio.

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Arlyne

4 months ago

Option C seems like the way to go. Smaller building, more material choices - what's not to love?

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Mila

4 months ago

I'm a bit confused by this question. The IBC requirements can be complex, and I'm not sure how they relate to the number of structural material options. I'll need to think this through step-by-step.

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Jacki

4 months ago

Okay, I've got a strategy for this. I'll carefully consider each option and think about how the IBC requirements might influence the available structural materials. Eliminating the less likely choices should help me narrow it down.

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Audria

4 months ago

Increasing the occupant capacity or efficiency ratio doesn't seem like it would directly affect the structural material options. I'm leaning towards C or D as the most likely answers here.

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Tresa

5 months ago

Hmm, this is a tricky one. I'm not entirely sure about the relationship between the IBC requirements and the number of structural material options. I'll need to review the IBC guidelines more closely.

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Franklyn

5 months ago

I think the key here is to focus on the IBC requirements and how they impact the selection of structural materials. Limiting the building area or omitting fire ratings could potentially open up more options.

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Jacklyn

3 months ago

Efficiency ratio might be the safest bet for options.

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