MArch Master of Architecture Building Codes & Regulations 2 — Questions and Answers
Question 1: ADA Standards for Accessible Design require a minimum clear floor space diameter of how many inches for a wheelchair turning radius?
- 48 inches
- 60 inches (Correct answer)
- 72 inches
- 36 inches
Correct answer: 60 inches
ADA Standards require a minimum 60-inch (5-foot) diameter clear floor space to allow a wheelchair user to complete a full 360° turn.
Question 2: Under the IBC, what is the maximum travel distance to an exit in a fully sprinklered Group B (office) building?
- 200 feet
- 250 feet
- 300 feet (Correct answer)
- 400 feet
Correct answer: 300 feet
The IBC permits a maximum exit access travel distance of 300 feet in sprinklered Group B occupancies, recognizing the added safety of automatic suppression.
Question 3: Which characteristic distinguishes a fire wall from a fire barrier under the IBC?
- A fire wall must be rated at least 4 hours; a barrier only 2 hours
- A fire wall must be structurally independent and capable of standing if adjacent construction collapses (Correct answer)
- A fire wall is interior only; a fire barrier can be exterior
- A fire wall requires sprinklers on both sides; a barrier does not
Correct answer: A fire wall must be structurally independent and capable of standing if adjacent construction collapses
Fire walls must be structurally independent (self-supporting) and remain in place even if construction on either side collapses, while fire barriers rely on the surrounding structure for support.
Question 4: According to ADA Standards, what is the minimum clear width required for an accessible route?
- 30 inches
- 36 inches (Correct answer)
- 44 inches
- 48 inches
Correct answer: 36 inches
ADA Standards require accessible routes to maintain a minimum clear width of 36 inches to accommodate wheelchair users navigating through the space.
Question 5: Which federal law governs accessibility requirements for privately owned places of public accommodation in the United States?
- Fair Housing Act (FHA)
- Americans with Disabilities Act (ADA) (Correct answer)
- Section 504 of the Rehabilitation Act
- Architectural Barriers Act (ABA)
Correct answer: Americans with Disabilities Act (ADA)
Title III of the ADA governs accessibility for privately owned places of public accommodation and commercial facilities, applying to businesses open to the general public.
Question 6: What is the maximum slope permitted for an accessible ramp under ADA Standards?
- 1:8 (rise:run)
- 1:10 (rise:run)
- 1:12 (rise:run) (Correct answer)
- 1:16 (rise:run)
Correct answer: 1:12 (rise:run)
ADA Standards require ramps to have a maximum slope of 1:12, meaning no more than 1 inch of rise for every 12 inches of horizontal run.
Question 7: Under the IBC, what is the minimum corridor width for a non-residential occupancy serving 50 or more persons?
- 36 inches
- 44 inches (Correct answer)
- 48 inches
- 60 inches
Correct answer: 44 inches
The IBC requires a minimum corridor width of 44 inches in non-residential occupancies serving an occupant load of 50 or more to allow adequate egress flow.
MArch Master of Architecture Building Codes & Regulations 2
ADA Standards for Accessible Design require a minimum clear floor space diameter of how many inches for a wheelchair turning radius?