CFM Cheat Sheet 2026

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

1. Which of the following is a key responsibility in fire investigation? → Determining cause and origin
2. Under NFPA 13, which occupancy hazard classification would typically apply to a woodworking shop with heavy combustible materials? → Extra hazard Group 2
3. What is the recommended FIRST step when a safety concern is identified in a Certified Fire Marshal setting? → Document the concern and notify the appropriate supervisor
4. Which quality is MOST important for professionals conducting incident investigation & analysis in Certified Fire Marshal? → Objectivity and attention to detail
5. 'Rollover' or 'flameover' during a structure fire refers to: → Flames rolling across the ceiling as unburned gases ignite
6. Which type of fire extinguisher is best for electrical fires? → Class C
7. Which factor is MOST important when evaluating the effectiveness of risk mitigation strategies measures in Certified Fire Marshal? → Reduction in incident rates over time
8. Who is typically involved in fire investigations? → Law enforcement and forensic specialists
9. What factor MOST affects the validity of incident investigation & analysis outcomes in Certified Fire Marshal? → The consistency and appropriateness of assessment methods used
10. Under NFPA 13, what is the minimum distance a standard sprinkler head must be located from a wall? → 4 inches
11. In Certified Fire Marshal, what role does employee training play in hazard identification & assessment? → It ensures all personnel can recognize, report, and respond to hazards
12. Which documentation is MOST critical when implementing environmental health & safety protocols in Certified Fire Marshal? → Incident response plans and emergency procedures
13. Which competency is MOST essential for professionals working in workplace ergonomics & health in Certified Fire Marshal? → Critical thinking combined with practical application of knowledge
14. The phenomenon where all combustible materials in a confined space simultaneously ignite due to accumulated radiant heat is called: → Flashover
15. Areas of refuge in high-rise buildings are intended to provide a temporary safe area for: → Occupants with disabilities who cannot use stairways without assistance
16. Which factor is MOST important when evaluating the effectiveness of environmental health & safety measures in Certified Fire Marshal? → Reduction in incident rates over time
17. Which factor determines the appropriate personal protective equipment replacement schedule in Certified Fire Marshal? → Performance data, safety records, and total cost of ownership analysis
18. When should incident investigation & analysis be conducted in Certified Fire Marshal? → At regular intervals and whenever significant changes occur
19. In Certified Fire Marshal, how does workplace ergonomics & health contribute to professional credibility? → By demonstrating competence, maintaining standards, and delivering consistent results
20. What is pyrolysis in the context of fire behavior? → The thermal decomposition of materials producing combustible gases
21. The upper explosive limit (UEL) of a flammable gas or vapor refers to: → The maximum concentration above which the mixture is too fuel-rich to ignite
22. What is required for a facility to pass a fire inspection? → Compliance with all applicable fire codes.
23. A dry pipe sprinkler system is most appropriate in which of the following environments? → Unheated warehouses or freezer areas where pipes could freeze
24. What is a primary concern when storing hazardous chemicals? → Ventilation and containment
25. In Certified Fire Marshal, what is the PRIMARY purpose of regular personal protective equipment maintenance? → To ensure reliability, safety, and extend useful service life
26. A pre-action sprinkler system requires which condition before water is released into the piping? → Detection of a fire event by a separate detection system
27. In Certified Fire Marshal, what is the PRIMARY purpose of conducting regular hazard identification & assessment assessments? → To identify potential hazards before incidents occur
28. What is the primary goal of fire prevention inspections? → To ensure compliance and reduce fire risks.
29. A deluge sprinkler system differs from a standard wet pipe system in that it uses: → Open sprinkler heads that all discharge simultaneously when the deluge valve opens
30. Which factor most significantly affects the rate of fire spread within a structure? → Fuel load, arrangement, and combustibility of materials present