CPACC Built Environment Accessibility 5 — Questions and Answers
Question 1: Which international standard provides comprehensive guidance on the accessibility of the built environment beyond the ADA, covering outdoor environments and transportation?
- ISO 9241
- ISO 21542 (Correct answer)
- EN 301 549
- WCAG 2.1
Correct answer: ISO 21542
ISO 21542 'Building construction — Accessibility and usability of the built environment' provides international guidance covering a broader scope than the ADA, including outdoor spaces.
Question 2: A museum installs an audio description wand system for exhibits. This primarily benefits visitors with which disability?
- Mobility impairments
- Visual impairments (Correct answer)
- Hearing impairments
- Cognitive disabilities
Correct answer: Visual impairments
Audio description systems narrate visual content, making exhibit information accessible to visitors who are blind or have low vision.
Question 3: Under ADA Standards, at least what percentage of accessible parking spaces in a lot must be van-accessible?
- 10%
- 20%
- One in every six accessible spaces (Correct answer)
- One in every eight accessible spaces
Correct answer: One in every six accessible spaces
ADA requires that at least one in every six (approximately 1/6) accessible parking spaces be van-accessible, with an 8-foot access aisle.
Question 4: What is the primary accessibility concern with revolving doors as the sole entrance to a building?
- They require too much lighting
- They are inaccessible for wheelchair users and people with mobility impairments (Correct answer)
- They create acoustic barriers for people with hearing aids
- They violate fire codes universally
Correct answer: They are inaccessible for wheelchair users and people with mobility impairments
Revolving doors are inaccessible for most wheelchair users and people with mobility devices; ADA requires that an accessible door (swing or automatic) be provided adjacent to any revolving door.
Question 5: Which concept describes designing buildings and spaces so they are usable by all people to the greatest extent possible without the need for adaptation?
- Accessible design
- Barrier-free design
- Universal design (Correct answer)
- Assistive design
Correct answer: Universal design
Universal design aims to create environments usable by all people, regardless of age or ability, without requiring adaptation or specialized design.
Question 6: A restroom has a lavatory with a knee clearance of 27 inches high. Under ADA, is this compliant?
- Yes, 27 inches is the minimum required knee clearance height (Correct answer)
- No, the minimum knee clearance height is 29 inches
- No, the minimum knee clearance height is 34 inches
- Yes, any clearance over 24 inches is acceptable
Correct answer: Yes, 27 inches is the minimum required knee clearance height
ADA Standards require a minimum knee clearance of 27 inches high, 25 inches deep, and 30 inches wide under accessible lavatories to accommodate wheelchair users.
Question 7: When designing emergency egress for people with disabilities, which feature is required by the IBC (International Building Code) in multi-story buildings?
- Wheelchair storage rooms on each floor
- Areas of refuge adjacent to exit stairways (Correct answer)
- Elevator evacuation systems in all buildings
- Dedicated emergency-only ramps
Correct answer: Areas of refuge adjacent to exit stairways
The IBC requires areas of refuge — protected spaces adjacent to exit stairways where people unable to use stairs can await evacuation assistance.
CPACC Built Environment Accessibility 5
Which international standard provides comprehensive guidance on the accessibility of the built environment beyond the ADA, covering outdoor environments and transportation?