Architecture Interior Architecture and Space Planning 2 — Questions and Answers
Question 1: Per the 2010 ADA Standards for Accessible Design, the minimum clear width required for accessible doorways is:
- 28 inches
- 32 inches (Correct answer)
- 36 inches
- 40 inches
Correct answer: 32 inches
ADA requires a minimum 32-inch clear opening width for accessible doorways, typically achieved with a 34- or 36-inch door measured in the 90-degree open position.
Question 2: The maximum allowable slope for an accessible ramp per ADA Standards is:
- 1:8 (12.5% grade)
- 1:10 (10% grade)
- 1:12 (8.33% grade) (Correct answer)
- 1:20 (5% grade)
Correct answer: 1:12 (8.33% grade)
ADA Standards require a maximum slope of 1:12, meaning one inch of rise for every 12 inches of horizontal run, ensuring ramps are manageable for wheelchair users.
Question 3: Per ADA Standards, the minimum diameter of clear floor space required to allow a wheelchair user to make a 360-degree turn is:
- 48 inches
- 54 inches
- 60 inches (Correct answer)
- 72 inches
Correct answer: 60 inches
ADA requires a 60-inch (5-foot) diameter clear floor circle to allow a wheelchair to complete a full 360-degree turning maneuver.
Question 4: In full-service restaurant space planning, the approximate net area allocated per seat, including server circulation, typically ranges from:
- 8–10 sq ft per seat
- 12–14 sq ft per seat
- 15–20 sq ft per seat (Correct answer)
- 25–35 sq ft per seat
Correct answer: 15–20 sq ft per seat
Full-service restaurants typically allocate 15–20 sq ft per seat to accommodate tables, chairs, and server circulation aisles comfortably.
Question 5: In ergonomic workstation design, the recommended seated desk height for the average adult is approximately:
- 24–26 inches
- 28–30 inches (Correct answer)
- 32–34 inches
- 36–38 inches
Correct answer: 28–30 inches
The standard ergonomic seated desk height of 28–30 inches is designed to keep forearms roughly parallel to the floor when typing, reducing musculoskeletal strain.
Question 6: In healthcare facility planning, the key distinction between a 'clean utility room' and a 'soiled utility room' is:
- Clean utility rooms are larger; soiled utility rooms are smaller
- Clean utility rooms store unused supplies; soiled utility rooms handle used or contaminated materials (Correct answer)
- Clean utility rooms are accessible to patients; soiled utility rooms are restricted to staff
- Clean utility rooms contain HVAC equipment; soiled utility rooms contain plumbing fixtures
Correct answer: Clean utility rooms store unused supplies; soiled utility rooms handle used or contaminated materials
Clean utility rooms store clean and sterile supplies before use, while soiled utility rooms are designated for used or contaminated materials, maintaining critical infection control separation.
Question 7: Per the International Building Code (IBC) Table 1004.5, the occupancy load factor used to calculate egress requirements for general business (office) use is:
- 50 gross sq ft per occupant
- 100 gross sq ft per occupant (Correct answer)
- 150 gross sq ft per occupant
- 200 gross sq ft per occupant
Correct answer: 100 gross sq ft per occupant
IBC assigns a load factor of 100 gross sq ft per occupant for business occupancies, used to calculate the number of occupants a space is assumed to hold for egress design.
Architecture Interior Architecture and Space Planning 2
Per the 2010 ADA Standards for Accessible Design, the minimum clear width required for accessible doorways is: