Page 1 of 172
North Carolina Fire Sprinkler Contractor Class I Exam
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST RELEASED
North Carolina Fire Sprinkler Contractor Class I Exam — What It Entails (Summarized Coverage)
1. North Carolina State Board licensing laws for fire sprinkler contractors (Class I scope and
authority)
2. NC Building Code requirements for fire sprinkler system design and installation compliance
3. NFPA 13 standards for sprinkler system layout, design, and installation principles
4. NFPA 25 inspection, testing, and maintenance requirements for sprinkler systems
5. Fire sprinkler system types (wet pipe, dry pipe, pre-action, deluge systems)
6. Water supply basics, hydraulics, and system pressure/flow requirements (K-factor calculations)
7. Sprinkler head types, spacing rules, and temperature ratings (fusible links, quick response)
8. Hazard classification of occupancies and design density requirements
9. Hydraulic calculations and system demand vs water supply analysis
10. Underground fire service mains and backflow prevention requirements
11. Control valves, alarm devices, and supervisory switches operation
12. Fire pump basics (jockey pumps, diesel/electric fire pumps, testing principles)
13. System acceptance testing, commissioning, and inspection procedures
14. NFPA 72 interface basics (alarm activation from sprinkler flow switches)
15. Impairment procedures and system shutdown safety rules
16. Fire stopping, pipe supports, seismic bracing, and structural installation rules
17. Storage occupancy protection (rack storage, high-piled storage concepts)
18. Residential vs commercial sprinkler system differences and limitations
19. Safety codes, OSHA construction safety, and jobsite hazard control
20. Real-world scenario questions: system design selection, troubleshooting, and code compliance
decisions
, Page 2 of 172
1. Which North Carolina licensing classification generally authorizes contractors to install, alter, and
service all types of fire sprinkler systems?
A. Class I Fire Sprinkler Contractor License
B. Residential electrical wiring license
C. Plumbing apprentice registration only
D. Limited roofing contractor permit
Correct Answer: A. Class I Fire Sprinkler Contractor License
Rationale: The Class I license generally authorizes broader commercial fire sprinkler installation and
service activities throughout North Carolina.
2. Which NFPA standard primarily governs the installation and design requirements for automatic fire
sprinkler systems in commercial occupancies?
, Page 3 of 172
A. NFPA 13
B. NFPA 70
C. NFPA 101
D. NFPA 17A
Correct Answer: A. NFPA 13
Rationale: NFPA 13 establishes design, installation, and layout standards for automatic fire sprinkler
systems in many occupancies.
3. Which sprinkler system type constantly contains water within the piping network under normal
operating conditions?
A. Wet pipe sprinkler system
B. Dry pipe sprinkler system
, Page 4 of 172
C. Pre-action sprinkler system
D. Deluge sprinkler system
Correct Answer: A. Wet pipe sprinkler system
Rationale: Wet pipe systems maintain water in the piping at all times for immediate discharge during
sprinkler activation.
4. Which sprinkler system type is commonly installed in areas subject to freezing temperatures because
pipes normally contain pressurized air?
A. Dry pipe sprinkler system
B. Wet pipe sprinkler system
C. Deluge water mist system
D. Foam suppression system
North Carolina Fire Sprinkler Contractor Class I Exam
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST RELEASED
North Carolina Fire Sprinkler Contractor Class I Exam — What It Entails (Summarized Coverage)
1. North Carolina State Board licensing laws for fire sprinkler contractors (Class I scope and
authority)
2. NC Building Code requirements for fire sprinkler system design and installation compliance
3. NFPA 13 standards for sprinkler system layout, design, and installation principles
4. NFPA 25 inspection, testing, and maintenance requirements for sprinkler systems
5. Fire sprinkler system types (wet pipe, dry pipe, pre-action, deluge systems)
6. Water supply basics, hydraulics, and system pressure/flow requirements (K-factor calculations)
7. Sprinkler head types, spacing rules, and temperature ratings (fusible links, quick response)
8. Hazard classification of occupancies and design density requirements
9. Hydraulic calculations and system demand vs water supply analysis
10. Underground fire service mains and backflow prevention requirements
11. Control valves, alarm devices, and supervisory switches operation
12. Fire pump basics (jockey pumps, diesel/electric fire pumps, testing principles)
13. System acceptance testing, commissioning, and inspection procedures
14. NFPA 72 interface basics (alarm activation from sprinkler flow switches)
15. Impairment procedures and system shutdown safety rules
16. Fire stopping, pipe supports, seismic bracing, and structural installation rules
17. Storage occupancy protection (rack storage, high-piled storage concepts)
18. Residential vs commercial sprinkler system differences and limitations
19. Safety codes, OSHA construction safety, and jobsite hazard control
20. Real-world scenario questions: system design selection, troubleshooting, and code compliance
decisions
, Page 2 of 172
1. Which North Carolina licensing classification generally authorizes contractors to install, alter, and
service all types of fire sprinkler systems?
A. Class I Fire Sprinkler Contractor License
B. Residential electrical wiring license
C. Plumbing apprentice registration only
D. Limited roofing contractor permit
Correct Answer: A. Class I Fire Sprinkler Contractor License
Rationale: The Class I license generally authorizes broader commercial fire sprinkler installation and
service activities throughout North Carolina.
2. Which NFPA standard primarily governs the installation and design requirements for automatic fire
sprinkler systems in commercial occupancies?
, Page 3 of 172
A. NFPA 13
B. NFPA 70
C. NFPA 101
D. NFPA 17A
Correct Answer: A. NFPA 13
Rationale: NFPA 13 establishes design, installation, and layout standards for automatic fire sprinkler
systems in many occupancies.
3. Which sprinkler system type constantly contains water within the piping network under normal
operating conditions?
A. Wet pipe sprinkler system
B. Dry pipe sprinkler system
, Page 4 of 172
C. Pre-action sprinkler system
D. Deluge sprinkler system
Correct Answer: A. Wet pipe sprinkler system
Rationale: Wet pipe systems maintain water in the piping at all times for immediate discharge during
sprinkler activation.
4. Which sprinkler system type is commonly installed in areas subject to freezing temperatures because
pipes normally contain pressurized air?
A. Dry pipe sprinkler system
B. Wet pipe sprinkler system
C. Deluge water mist system
D. Foam suppression system
