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These International Code Council 93-Tall-Mass-Timber-Buildings Exam questions help you practice theoretical and practical skills in different aspects, making problem-solving easier. Our International Code Council 93-Tall-Mass-Timber-Buildings questions PDF is a complete bundle of problems presenting the versatility and correlativity of questions observed in past exam papers. These questions are bundled into International Code Council 93-Tall-Mass-Timber-Buildings PDF Questions following the official study guide.
| Section | Objectives |
|---|---|
| Special Inspection Requirements | - Inspector duties and responsibilities - Special inspection procedures for tall mass timber buildings - Inspection of connections and protective materials |
| Construction Fire Safety | - International Fire Code requirements - Protection of mass timber during construction - Construction-phase fire safety requirements |
| Code Compliance and Related Requirements | - Documentation and verification of compliance - Energy code requirements applicable to mass timber buildings - Sound transmission requirements |
| Fire Protection and Fire-Resistance | - Noncombustible protection and protection of mass timber elements - Fire-resistance requirements - Fire protection systems and related provisions |
| Tall Mass Timber Building Code Provisions | - Types IV-A, IV-B and IV-C construction - International Building Code requirements for tall mass timber construction - Mass timber materials and construction requirements |
| Structural Inspection | - Mass timber structural elements - Structural loads and related code requirements - Connections and fastening systems |
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NEW QUESTION # 43
The maximum allowable height for a Group I-4 building of Type IV-B construction provided with an automatic sprinkler system in accordance with Section 903.3.1.1 is _____ ft.
Answer: A
Explanation:
The applicable requirement is found in 2021 IBC Section 504.3 and Table 504.3. The table regulates building height in feet above grade plane by occupancy, construction type, and sprinkler condition. For a Group I-4 occupancy equipped throughout with a Section 903.3.1.1 sprinkler system, the applicable row is the sprinklered "S" row.
Reading across that row to Type IV-B construction gives a maximum building height of 120 feet. Therefore, option B is correct. The 180-foot value applies to Type IV-A construction for the same occupancy and sprinkler condition. The 85-foot value, which is not offered, applies to Type IV-C and Type IV-HT. The 270- foot value generally appears for certain lower-hazard occupancies-such as Groups A, B, E, F, M, S and U- when constructed as sprinklered Type IV-A, but it is not permitted for Group I-4.
This distinction reflects the additional life-safety considerations associated with custodial-care occupancies. A special inspector should verify that the approved construction documents identify both the correct occupancy classification and construction type because either classification directly changes the permitted height.
References/Topics: 2021 IBC Section 504.3; Table 504.3, Group I-4, sprinklered Type IV-B construction; Section 903.3.1.1.
NEW QUESTION # 44
Refer to the figure by clicking on the EXHIBIT button above.
In Type IV-B construction, unprotected portions of mass timber as shown in the Figure is limited to an area equal to not more than what percentage of the base floor area?
Answer: C
Explanation:
The highlighted exposed surfaces in this figure are mass timber wall surfaces . Under 2021 IBC Section
602.4.2.2.2, Exception 1.2, unprotected portions of Type IV-B mass timber walls, including attached columns, are permitted up to an area equal to 40 percent of the floor area in the applicable dwelling unit or fire area.
Option D is therefore correct.
This should be distinguished from the corresponding ceiling limitation. Unprotected mass timber ceilings, including attached beams, are limited to 20 percent of floor area. The larger 40-percent allowance applies specifically to wall exposure.
Where only wall surfaces are exposed, the allowable wall area is calculated directly from the base floor area.
For example, a 1,000-square-foot fire area would permit up to 400 square feet of exposed wall surface under this exception. However, Section 602.4.2.2.4 additionally requires unprotected wall portions to maintain the prescribed 15-foot separation from other applicable exposed wall or ceiling portions.
Where exposed walls and exposed ceilings occur together, the individual 40- and 20-percent limits cannot simply be maximized simultaneously; the mixed-exposure equation in Section 602.4.2.2.3 governs.
References/Topics: 2021 IBC Sections 602.4.2.2.2 through 602.4.2.2.4; Type IV-B wall exposure.
NEW QUESTION # 45
Regarding water supply for the protection of buildings under construction, when combustible building materials of the building under construction are delivered to a site, the minimum fire flow provided shall be
_____ gpm.
Answer: C
Explanation:
The required minimum fire flow is 500 gallons per minute , making option C correct.
2021 IFC Section 3313.1 requires an approved temporary or permanent water supply for fire protection to become available at specified stages of construction, including when combustible building materials arrive on the site. Section 3313.2 then establishes the specific requirement: when combustible building materials for the building under construction are delivered, a minimum fire flow of 500 gpm must be provided.
The hydrant supplying this flow must be located within 500 feet of the combustible building materials as measured along an approved fire apparatus access lane. If a single hydrant cannot provide the required coverage because of site configuration, additional hydrants are required.
The 500-gpm value in this question is the construction-stage minimum associated with combustible-material delivery. It should not be mistaken for the final required fire flow of the completed building. Depending on construction type, fire separation distance, building area, and subsequent phases of vertical construction, the required available water supply can be greater.
For mass timber projects, verifying this water supply before large timber packages arrive is a critical construction-phase fire-safety control.
References/Topics: 2021 IFC Sections 3313.1 and 3313.2; combustible building materials; minimum construction fire flow.
NEW QUESTION # 46
Which of the following best describes circumstances for which a separate inspection by a building official would be required for the fire protection of structural connections in buildings of Type IV-B construction?
Answer: A
Explanation:
A separate inspection by the building official is required where the fire resistance of a structural connection in Type IV-A, IV-B, or IV-C construction is provided by wood cover calculated in accordance with Section
2304.10.1. Therefore, option C is correct.
The required inspection occurs after the calculated wood cover has been installed but before additional coverings or finishes conceal the connection. This sequencing allows the building official to verify the actual cover thickness, geometry, continuity, fit, fastening, and correspondence with the approved fire-resistance design.
The requirement is distinct from routine Chapter 17 special inspection. Although a qualified special inspector may observe connection installation and mass timber erection, Section 110.3.5 expressly identifies a required building-department inspection for this calculated wood-cover condition. The inspection cannot be bypassed merely because the connection was observed during structural installation.
A rated joint system under Section 715 is governed by its tested or listed assembly requirements but is not the circumstance identified by this specific inspection provision. The other options do not state the code trigger.
Inspectors should therefore coordinate notification before the connection is enclosed because subsequent destructive exposure may otherwise be necessary.
References/Topics: 2021 IBC Sections 110.3.5 and 2304.10.1; inspection of calculated wood cover protecting mass timber connections.
NEW QUESTION # 47
Combustible construction forming concealed spaces shall be protected with noncombustible protection with an assigned time of 40 minutes in which construction type?
Answer: D
Explanation:
The requirement applies to Type IV-C construction. Under the 2021 IBC provisions governing Type IV-C, combustible construction forming concealed spaces must be protected with noncombustible protection having an assigned protection time of not less than 40 minutes. Therefore, option C is correct.
The assigned protection time is determined using the protection-time values prescribed by the code, including the applicable values for gypsum board and other approved noncombustible materials. The provision is intended to delay ignition and involvement of combustible mass timber surfaces located within concealed spaces, where fire growth might otherwise remain undetected and become difficult for fire-suppression personnel to access.
Type IV-A and Type IV-B are subject to more extensive noncombustible protection requirements because those construction types support taller buildings and require greater protection of mass timber elements. Type IV-HT uses the traditional heavy-timber concealed-space provisions and may employ alternative methods, such as complete filling with noncombustible insulation.
During inspection, the special inspector must confirm that the installed layers, thicknesses, fastening patterns, joints, penetrations, and transitions collectively provide the required 40-minute assigned protection time.
References/Topics: 2021 IBC Section 602.4.3.5; Table 722.7.1(1); Type IV-C concealed-space protection.
NEW QUESTION # 48
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