CID Space Planning and Building Codes 2 — Questions and Answers
Question 1: In a business occupancy, what is the minimum clear width required for a corridor serving an occupant load of 50 or more per the IBC?
- 36 inches
- 44 inches (Correct answer)
- 48 inches
- 60 inches
Correct answer: 44 inches
The IBC requires a minimum 44-inch corridor width when the occupant load served is 50 or more.
Question 2: When two exits are required, what is the minimum separation distance between them in a non-sprinklered building?
- One-third the diagonal of the space
- One-half the diagonal of the space (Correct answer)
- One-quarter the diagonal of the space
- The full diagonal of the space
Correct answer: One-half the diagonal of the space
Exits must be separated by at least one-half the maximum overall diagonal dimension of the area served in non-sprinklered buildings.
Question 3: What is the standard minimum ceiling height for habitable rooms under the IBC?
- 6 feet 8 inches
- 7 feet
- 7 feet 6 inches (Correct answer)
- 8 feet
Correct answer: 7 feet 6 inches
Habitable spaces generally require a minimum ceiling height of 7 feet 6 inches.
Question 4: A dead-end corridor in a non-sprinklered business occupancy may not exceed what length?
- 10 feet
- 20 feet (Correct answer)
- 35 feet
- 50 feet
Correct answer: 20 feet
Dead-end corridors are generally limited to 20 feet in non-sprinklered buildings.
Question 5: Which factor is used to calculate occupant load for a space?
- Number of doors
- Floor area divided by occupant load factor (Correct answer)
- Number of windows
- Ceiling height
Correct answer: Floor area divided by occupant load factor
Occupant load equals the floor area divided by the occupant load factor assigned to that use.
Question 6: What is the maximum travel distance to an exit in a sprinklered business occupancy?
- 150 feet
- 200 feet
- 250 feet
- 300 feet (Correct answer)
Correct answer: 300 feet
Sprinklered business occupancies typically allow up to 300 feet of exit travel distance.
Question 7: In space planning, what does an anthropometric analysis primarily inform?
- Structural loads
- Human body dimensions and clearances (Correct answer)
- Fire ratings
- HVAC capacity
Correct answer: Human body dimensions and clearances
Anthropometrics studies human body measurements to determine appropriate clearances and furniture sizing.
CID Space Planning and Building Codes 2
In a business occupancy, what is the minimum clear width required for a corridor serving an occupant load of 50 or more per the IBC?