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2024 International Building Code
Chapter 6

IBC 2024

2024 International Building Code

Chapter 6Types Of Construction

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Question 1 1.

What is the primary factor that distinguishes the different types of construction in the International Building Code (IBC)?

Occupancy Group and number of stories
Material of construction and required fire-resistance ratings
Building area and seismic design category
Number of exits and sprinkler system type

Question 2 2.

In a Type IA building, what is the minimum required fire-resistance rating for exterior bearing walls?

1 hour
2 hours
3 hours
Not less than 2 hours based on fire separation distance

Question 3 3.

Which of the following elements has a lower minimum fire-resistance rating in Type IB construction compared to Type IIA construction?

Structural frame
Interior bearing walls
Floor construction
None of the above; Type IB generally has higher or equal ratings than Type IIA.

Question 4 4.

A single-story mercantile building is constructed with an unprotected steel frame and noncombustible exterior walls. Which construction type is it most likely classified as?

Type IIA
Type IIB
Type VA
Type VB

Question 5 5.

What is a defining characteristic of Type III construction?

All structural elements are noncombustible.
Exterior walls are of noncombustible materials, and interior elements are of any approved material, often combustible.
All structural elements are heavy timber.
All structural elements are combustible, with 1-hour fire-resistance ratings.

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