NCIDQ Building Codes and Regulations 2 — Questions and Answers
Question 1: What flame spread index (FSI) rating is required for interior finish materials in egress corridors under IBC?
- Class A (FSI 0–25) (Correct answer)
- Class B (FSI 26–75)
- Class C (FSI 76–200)
- Class D (FSI 201–500)
Correct answer: Class A (FSI 0–25)
IBC requires Class A (FSI 0–25) interior finish in exit enclosures and corridors serving high-hazard occupancies to limit flame spread.
Question 2: Under NFPA 101, what is the maximum dead-end corridor length permitted in a sprinklered healthcare occupancy?
- 30 feet (Correct answer)
- 50 feet
- 20 feet
- No dead ends allowed
Correct answer: 30 feet
NFPA 101 limits dead-end corridors in healthcare occupancies to 30 feet even when sprinklered, due to non-ambulatory patient evacuation needs.
Question 3: Which accessibility standard specifies the 1:12 maximum slope for accessible ramps?
- 2010 ADA Standards for Accessible Design (Correct answer)
- IBC Chapter 11 only
- ANSI A117.1 only
- OSHA 29 CFR 1910
Correct answer: 2010 ADA Standards for Accessible Design
The 2010 ADA Standards for Accessible Design require ramp running slopes no steeper than 1:12 (one inch rise per 12 inches of run).
Question 4: What is the minimum required headroom clearance in a means of egress under IBC?
- 7 feet 6 inches (Correct answer)
- 7 feet 0 inches
- 8 feet 0 inches
- 6 feet 8 inches
Correct answer: 7 feet 6 inches
IBC Section 1003.2 requires a minimum ceiling height of 7 feet 6 inches throughout the means of egress.
Question 5: Which code section governs the number of plumbing fixtures required for a commercial tenant buildout?
- International Plumbing Code (IPC) Table 403.1 (Correct answer)
- IBC Chapter 29
- NFPA 5000 Chapter 10
- ASHRAE Standard 62.1
Correct answer: International Plumbing Code (IPC) Table 403.1
IPC Table 403.1 provides minimum fixture count requirements based on occupancy type and occupant load, directly applied during tenant buildouts.
Question 6: What does 'means of egress' legally consist of under the IBC?
- Exit access, exit, and exit discharge (Correct answer)
- Corridors, stairwells, and doors only
- Sprinkler system, alarm, and doors
- Fire-rated walls, exit signs, and emergency lighting
Correct answer: Exit access, exit, and exit discharge
The IBC defines means of egress as a continuous path comprising three parts: exit access, the exit itself, and exit discharge to a public way.
NCIDQ Building Codes and Regulations 2
What flame spread index (FSI) rating is required for interior finish materials in egress corridors under IBC?