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93-Tall-Mass-Timber-Buildings Question and Answers

93-Tall-Mass-Timber-Buildings

Last Update Sep 22, 2026
Total Questions : 80

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Questions 1

In mass timber construction of Type IV-C, the fire-resistance ratings of bearing walls are permitted to be reduced by _____ where supporting a roof only.

Options:

A.  

30-minutes

B.  

45-minutes

C.  

1-hour

D.  

2-hours

Discussion 0
Questions 2

Calculated mass timber fire resistance can include each of the following except:

Options:

A.  

minimum prescriptive dimensions.

B.  

calculated fire resistance of the wood.

C.  

fire resistance of noncombustible protection.

D.  

combination of calculated fire resistance of the wood and noncombustible protection.

Discussion 0
Questions 3

Refer to the exhibit by clicking on the EXHIBIT button above.

In the detail shown, if the connections at the glulam beam and the steel plate required a fire-resistance rating of one (1) hour and the wood cover is designed per AWC Technical Report 10 to provide the entire one (1) hour of protection, the minimum required thickness for the wood block member providing protection for the bolt connections is _____ inches.

Options:

A.  

1.5

B.  

1.75

C.  

2

D.  

3

Discussion 0
Questions 4

Which of the following provisions for mass timber used for interior exit and elevator hoistway enclosures is true?

Options:

A.  

Type IV-A construction requires at least 80 minutes of the 120-minute fire-resistance rating to be provided by noncombustible protection.

B.  

Type IV-B construction requires at least 40 minutes of the 120-minute fire-resistance rating to be provided by noncombustible protection.

C.  

Type IV-C construction requires at least 40 minutes of the 60-minute fire-resistance rating to be provided by noncombustible protection.

D.  

Type IV-HT construction requires at least 40 minutes of the 60-minute fire-resistance rating to be provided by noncombustible protection.

Discussion 0
Questions 5

The fire-resistance of a protected mass timber assembly is equivalent to the fire resistance time of the:

Options:

A.  

mass timber itself.

B.  

noncombustible protection.

C.  

mass timber itself plus the finish rating time of the noncombustible protection.

D.  

mass timber itself plus the added contribution time attributable to the noncombustible protection.

Discussion 0
Questions 6

In Type IV-C construction, a connection between two members of the primary structural frame supporting a floor is required to be protected to achieve a minimum fire-resistance rating of:

Options:

A.  

1 hour

B.  

1-1/2 hours

C.  

2 hours

D.  

3 hours

Discussion 0
Questions 7

In mass timber construction of Type IV-B, each of the following is suitable for use as fireblocking except:

Options:

A.  

mineral wool.

B.  

one-half-inch gypsum board.

C.  

7/16-inch wood structural panels.

D.  

mass timber complying with IBC Section 2304.11.

Discussion 0
Questions 8

In Type IV-C construction, the fire-resistance rating provided by protection over a connection can be determined by which of the following?

Options:

A.  

Testing the fasteners used in the assembly.

B.  

Testing the protection covering the connection.

C.  

Calculating the temperature rise of the structural element being protected.

D.  

Calculating the temperature rise of the supported member used in the connection.

Discussion 0
Questions 9

The maximum allowable height for a Group E building of Type IV-A construction with an automatic sprinkler system in accordance with Section 903.3.1.1 is _____ stories.

Options:

A.  

3

B.  

5

C.  

6

D.  

9

Discussion 0
Questions 10

Each of the following is true for special inspection of mass timber construction except:

Options:

A.  

continuous special inspection is required for bolted connections.

B.  

periodic special inspection is required for concealed connections.

C.  

periodic special inspection is required for the erection of mass timber construction.

D.  

periodic special inspection is required to verify use of pre-drilled holes for threaded fasteners where required.

Discussion 0
Questions 11

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.

Options:

A.  

100

B.  

200

C.  

500

D.  

750

Discussion 0
Questions 12

All of the following combustible elements may be used in mass timber buildings except:

Options:

A.  

2 x 6 solid-sawn studs.

B.  

cross-laminated timber (CLT).

C.  

parallel-strand lumber (PSL).

D.  

dowel-laminated timber (DLT).

Discussion 0
Questions 13

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?

Options:

A.  

When connections do not integrate full mass timber member bearing on other mass timber elements

B.  

When connection fire resistance is provided by a fire resistance rated joint system in accordance with Section 715

C.  

When connection fire resistance is provided by wood cover calculated to meet the requirements of Section 2304.10.1

D.  

When connections are made without additional noncombustible protection beyond what is required for the connected elements

Discussion 0
Questions 14

Refer to the figure by clicking on the EXHIBIT button above.

The exterior wall section shown in the Figure provides the prescribed noncombustible protection required by which Construction Type?

Options:

A.  

Type IV-A

B.  

Type IV-B

C.  

Type IV-C

D.  

Type IV-HT

Discussion 0
Questions 15

Adhesives used to resist passage of air in construction Type IV-C, shall be in accordance with which of the following standards?

Options:

A.  

UL 263

B.  

ASTM A653

C.  

ASTM D3498

D.  

ASTM F1575

Discussion 0
Questions 16

Which of the following products is not included in the definition of mass timber?

Options:

A.  

Solid sawn lumber

B.  

Prefabricated wood I-joists

C.  

Glued laminated timber

D.  

Cross-laminated timber

Discussion 0
Questions 17

Given: A building of Type IV-B construction is designed to be greater than six stories above grade plane.

At least one layer of required noncombustible protection shall be installed on all of the following building elements except _____ on all floor levels more than four levels below active mass timber construction before erecting additional floor levels during construction.

Options:

A.  

mezzanines

B.  

shafts and vertical exit enclosures

C.  

floors as required by IBC Section 602.4

D.  

wall and ceilings as required by IBC Section 602.4

Discussion 0
Questions 18

The building owner shall be responsible for each of the following for fire safety during construction except:

Options:

A.  

completion of a daily fire safety inspection at the project site by the site safety director.

B.  

documentation and maintenance on-site of each inspection’s results until a certificate of occupancy has been issued.

C.  

securing documentation in a fire- and water-resistant safe until a certificate of occupancy has been issued.

D.  

making documentation immediately available on-site for presentation to the fire code official upon request.

Discussion 0
Questions 19

Which of the following construction Types permit concealed spaces to be protected by completely filling the concealed space with noncombustible insulation?

Options:

A.  

Type IV-A

B.  

Type IV-B

C.  

Type IV-C

D.  

Type IV-HT

Discussion 0
Questions 20

Materials acceptable for use in fire-protecting connections in Type IV-A construction includes each of the following except:

Options:

A.  

steel plates.

B.  

gypsum board.

C.  

a coating approved for the required fire endurance time.

D.  

additional wood cover applied over the connection.

Discussion 0
Questions 21

For a sprinklered Business Occupancy (Group B) in a 15-story building of Type IV-A construction, the maximum allowable building area is:

Options:

A.  

54,000 sq. ft.

B.  

648,000 sq. ft.

C.  

972,000 sq. ft.

D.  

unlimited.

Discussion 0
Questions 22

Where Type X gypsum board serves as noncombustible protection for interior surfaces of wall and ceiling assemblies, all of the following code provisions are correct except:

Options:

A.  

Screws shall penetrate at least 1 in. into mass timber.

B.  

Screws shall be spaced 12 in. on center in both directions.

C.  

Panel edges of any layer shall be offset 18 inches from those of the previous layer.

D.  

Panel edges of the base layer shall be taped and finished with joint compound.

Discussion 0
Questions 23

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.

Options:

A.  

60

B.  

120

C.  

180

D.  

270

Discussion 0
Questions 24

The fire-resistance of a protected mass timber assembly is equivalent to the fire resistance time of the:

Options:

A.  

mass timber itself.

B.  

noncombustible protection.

C.  

mass timber itself plus the finish rating time of the noncombustible protection.

D.  

mass timber itself plus the added contribution time attributable to the noncombustible protection.

Discussion 0