CFB Building Codes & Standards 2 — Questions and Answers
Question 1: Which edition of the International Building Code (IBC) introduced significant changes to seismic design categories?
- IBC 2000
- IBC 2006
- IBC 2012
- IBC 2018 (Correct answer)
Correct answer: IBC 2018
The IBC 2018 incorporated updated seismic hazard maps and revised seismic design category provisions based on ASCE 7-16.
Question 2: Under the International Residential Code (IRC), what is the minimum ceiling height required for habitable rooms?
- 6 feet 8 inches
- 7 feet 0 inches (Correct answer)
- 7 feet 6 inches
- 8 feet 0 inches
Correct answer: 7 feet 0 inches
The IRC requires a minimum ceiling height of 7 feet for habitable rooms, though beams and girders may project lower.
Question 3: A field builder encounters a load-bearing wall that must be relocated. Which standard governs the minimum header size for the new opening?
- ASTM E119
- IRC Table R602.7 (Correct answer)
- NFPA 13
- OSHA 29 CFR 1926
Correct answer: IRC Table R602.7
IRC Table R602.7 provides prescriptive header sizes based on span and supported load conditions for residential construction.
Question 4: What does the term 'AHJ' mean in the context of building codes?
- Approved Housing Jurisdiction
- Authority Having Jurisdiction (Correct answer)
- Architectural and Housing Journal
- Authorized Home Inspector
Correct answer: Authority Having Jurisdiction
AHJ stands for Authority Having Jurisdiction, the organization or individual responsible for enforcing code requirements.
Question 5: Which NFPA standard covers the installation of sprinkler systems in one- and two-family dwellings?
- NFPA 1
- NFPA 13
- NFPA 13D (Correct answer)
- NFPA 72
Correct answer: NFPA 13D
NFPA 13D is the standard specifically written for sprinkler system installation in one- and two-family dwellings and manufactured homes.
Question 6: When field conditions differ from approved plans, what is the correct first action for a Certified Field Builder?
- Proceed with the closest available material
- Notify the engineer of record or architect (Correct answer)
- Contact OSHA immediately
- Stop all work on the entire project
Correct answer: Notify the engineer of record or architect
The engineer of record or architect must be notified of field condition discrepancies so they can issue a formal revision or field order.
Question 7: Which code section typically addresses egress window requirements for sleeping rooms in residential construction?
- IRC R310 (Correct answer)
- IRC R602
- IBC 1004
- IBC 1209
Correct answer: IRC R310
IRC Section R310 specifies emergency escape and rescue opening requirements, including minimum dimensions for egress windows in sleeping rooms.
CFB Building Codes & Standards 2
Which edition of the International Building Code (IBC) introduced significant changes to seismic design categories?