ICC Commercial Combination Inspector
Exam Practice Questions And Correct
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Rationales 2026 Q&A | Instant
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1. A commercial building has a fire alarm system connected to a central
monitoring station. Which code requires this system to be installed
and maintained?
A. International Building Code (IBC)
B. International Fire Code (IFC)
C. NFPA 72
D. NFPA 13
Answer: NFPA 72
Rationale: NFPA 72 governs the installation, maintenance, and testing
of fire alarm systems.
,2. The minimum width of an exit access corridor in a commercial
assembly building with an occupant load of 100 is:
A. 32 inches
B. 36 inches
C. 44 inches
D. 48 inches
Answer: 44 inches
Rationale: IBC Table 1017.2 specifies that corridors serving 50-199
occupants must be at least 44 inches wide.
3. Which type of sprinkler system is most appropriate for a commercial
kitchen with high grease hazards?
A. Wet pipe system
B. Dry pipe system
C. Pre-action system with special suppression
D. Deluge system
Answer: Pre-action system with special suppression
Rationale: Pre-action systems prevent accidental discharge and special
suppression addresses high-hazard areas like commercial kitchens.
4. What is the minimum fire-resistance rating required for structural
steel columns in an unprotected commercial building over 75 feet
high?
A. 1 hour
B. 2 hours
, C. 3 hours
D. 4 hours
Answer: 3 hours
Rationale: IBC Table 601 specifies required fire-resistance ratings for
structural elements based on building height and occupancy.
5. A commercial building’s smoke control system must be tested and
maintained according to:
A. NFPA 13
B. NFPA 92
C. NFPA 72
D. IBC Section 907
Answer: NFPA 92
Rationale: NFPA 92 covers the design, installation, and maintenance of
smoke control systems in buildings.
6. Which type of fire extinguisher is required for a commercial office
space containing computers and paper files?
A. Water-based extinguisher
B. Foam extinguisher
C. Class C extinguisher
D. Class D extinguisher
Answer: Class C extinguisher
Rationale: Class C extinguishers are designed for electrical fires, which
are common in offices.
, 7. In a commercial building, an exit door must swing in the direction of
egress when serving:
A. Any number of occupants
B. Less than 50 occupants
C. 50 or more occupants
D. Only assembly occupancies
Answer: 50 or more occupants
Rationale: IBC Section 1010.1.2 requires exit doors to swing in the
direction of egress when occupant load exceeds 50.
8. Which NFPA standard applies to the inspection, testing, and
maintenance of fire pumps in commercial buildings?
A. NFPA 13
B. NFPA 25
C. NFPA 20
D. NFPA 72
Answer: NFPA 20
Rationale: NFPA 20 covers the design, installation, and maintenance of
fire pumps.
9. What is the maximum allowable travel distance to an exit in a
commercial business occupancy without a sprinkler system?
A. 150 feet
B. 200 feet
C. 250 feet
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. A commercial building has a fire alarm system connected to a central
monitoring station. Which code requires this system to be installed
and maintained?
A. International Building Code (IBC)
B. International Fire Code (IFC)
C. NFPA 72
D. NFPA 13
Answer: NFPA 72
Rationale: NFPA 72 governs the installation, maintenance, and testing
of fire alarm systems.
,2. The minimum width of an exit access corridor in a commercial
assembly building with an occupant load of 100 is:
A. 32 inches
B. 36 inches
C. 44 inches
D. 48 inches
Answer: 44 inches
Rationale: IBC Table 1017.2 specifies that corridors serving 50-199
occupants must be at least 44 inches wide.
3. Which type of sprinkler system is most appropriate for a commercial
kitchen with high grease hazards?
A. Wet pipe system
B. Dry pipe system
C. Pre-action system with special suppression
D. Deluge system
Answer: Pre-action system with special suppression
Rationale: Pre-action systems prevent accidental discharge and special
suppression addresses high-hazard areas like commercial kitchens.
4. What is the minimum fire-resistance rating required for structural
steel columns in an unprotected commercial building over 75 feet
high?
A. 1 hour
B. 2 hours
, C. 3 hours
D. 4 hours
Answer: 3 hours
Rationale: IBC Table 601 specifies required fire-resistance ratings for
structural elements based on building height and occupancy.
5. A commercial building’s smoke control system must be tested and
maintained according to:
A. NFPA 13
B. NFPA 92
C. NFPA 72
D. IBC Section 907
Answer: NFPA 92
Rationale: NFPA 92 covers the design, installation, and maintenance of
smoke control systems in buildings.
6. Which type of fire extinguisher is required for a commercial office
space containing computers and paper files?
A. Water-based extinguisher
B. Foam extinguisher
C. Class C extinguisher
D. Class D extinguisher
Answer: Class C extinguisher
Rationale: Class C extinguishers are designed for electrical fires, which
are common in offices.
, 7. In a commercial building, an exit door must swing in the direction of
egress when serving:
A. Any number of occupants
B. Less than 50 occupants
C. 50 or more occupants
D. Only assembly occupancies
Answer: 50 or more occupants
Rationale: IBC Section 1010.1.2 requires exit doors to swing in the
direction of egress when occupant load exceeds 50.
8. Which NFPA standard applies to the inspection, testing, and
maintenance of fire pumps in commercial buildings?
A. NFPA 13
B. NFPA 25
C. NFPA 20
D. NFPA 72
Answer: NFPA 20
Rationale: NFPA 20 covers the design, installation, and maintenance of
fire pumps.
9. What is the maximum allowable travel distance to an exit in a
commercial business occupancy without a sprinkler system?
A. 150 feet
B. 200 feet
C. 250 feet
