CFI Cheat Sheet 2026

The 30 highest-yield CFI facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What does deeper charring depth at a specific location indicate? → The fire burned longer or more intensely in that area
2. What is the primary purpose of fire investigation documentation? → To preserve evidence and establish the origin and cause of the fire
3. According to NFPA 10, how often must portable fire extinguishers receive an annual maintenance inspection? → Once per year
4. In Hazardous Materials Storage, what is the FIRST step a CFI professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
5. A fire extinguisher labeled '2-A:10-B:C' — what does the '2-A' rating indicate? → It can extinguish twice the fire as a 1-A unit
6. What is the purpose of a fire-rated wall? → To contain fire for a certain duration
7. What is the PRIMARY purpose of continuing education requirements in Fire Protection Systems Inspection for CFI professionals? → Maintaining current knowledge and competency as the field evolves
8. Which code section typically addresses fire alarm systems? → NFPA 72
9. What does 'fire load' refer to in fire inspection and investigation? → The total amount of combustible material in a given space
10. When a conflict arises between standard procedures and a unique situation in Sprinkler System Requirements, what should a CFI professional prioritize? → Safety and ethical obligations while seeking expert consultation
11. According to NFPA 10, what is the maximum travel distance to a Class A fire extinguisher in a light-hazard occupancy? → 75 feet
12. Who has authority to enforce the provisions of the fire code? → Local fire code official (AHJ)
13. Where does the NEC require GFCI protection? → Bathrooms, kitchens, garages, outdoors, and other wet or damp locations
14. A halon 1211 extinguisher is discovered during an inspection. What should the inspector document regarding this unit? → Existing units may remain in service but cannot be recharged after discharge
15. What is the PRIMARY purpose of continuing education requirements in Sprinkler System Requirements for CFI professionals? → Maintaining current knowledge and competency as the field evolves
16. A fire inspector observes that the inspection tag on an extinguisher shows the last inspection was 13 months ago. What is the correct action? → Document the finding and require immediate annual maintenance
17. Which fire extinguisher class is rated for fires involving energized electrical equipment? → Class C
18. When a conflict arises between standard procedures and a unique situation in Fire Alarm & Detection Systems, what should a CFI professional prioritize? → Safety and ethical obligations while seeking expert consultation
19. Which fire protection system requires annual inspection by qualified personnel? → Sprinkler systems
20. What is the purpose of a fire extinguisher rating? → Its fire type effectiveness
21. What is the PRIMARY purpose of continuing education requirements in Hazardous Materials Storage for CFI professionals? → Maintaining current knowledge and competency as the field evolves
22. What is the main function of a fire alarm system? → To alert occupants during a fire
23. When a conflict arises between standard procedures and a unique situation in Building Construction Classifications, what should a CFI professional prioritize? → Safety and ethical obligations while seeking expert consultation
24. In Plan Review & Permitting, what is the FIRST step a CFI professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
25. What is the minimum clearance required in front of an electrical panel per the NEC? → 36 inches
26. What is the main goal of a fire inspection? → Ensure fire safety and code compliance
27. Which agency publishes the fire and explosion investigation methodology guide used across the US? → NFPA
28. What fire hazard is created by using extension cords as permanent wiring? → Overheating from loads exceeding the cord's rating or insulation damage
29. What is the minimum duration emergency lighting must function during a power outage? → 90 minutes
30. Which document should a fire inspector complete to record violations after each inspection visit? → Inspection report