CFI CFI Fire Investigation & Documentation 2 — Questions and Answers
Question 1: What is 'burn pattern analysis' used for in fire investigation?
- To trace the fire's path and help determine its origin (Correct answer)
- To calculate the fire load of a compartment
- To test adequacy of sprinkler coverage
- To classify building construction type
Correct answer: To trace the fire's path and help determine its origin
Burn pattern analysis examines charring, smoke, and heat damage to trace fire movement and identify the area of origin.
Question 2: Which investigative approach does NFPA 921 require for determining fire cause?
- The scientific method, including hypothesis formation and testing (Correct answer)
- Visual examination only
- Witness interview as primary evidence
- Insurance company guidelines
Correct answer: The scientific method, including hypothesis formation and testing
NFPA 921 requires using the scientific method — forming and testing hypotheses — to objectively determine fire cause.
Question 3: What does 'fire load' refer to in fire inspection and investigation?
- The total amount of combustible material in a given space (Correct answer)
- The weight of firefighting equipment carried
- The electrical load on a circuit breaker panel
- The number of occupants permitted in a building
Correct answer: The total amount of combustible material in a given space
Fire load is the total quantity of combustible materials in a space, expressed in BTUs per square foot, affecting potential fire severity.
Question 4: A 'V-pattern' on a wall typically indicates what about fire origin?
- The point of origin is likely located below the base of the V (Correct answer)
- The ceiling above that area collapsed
- A backdraft event occurred at that location
- Water damage from suppression created the pattern
Correct answer: The point of origin is likely located below the base of the V
A V-pattern points toward the area of fire origin below its base, as flames and heat naturally spread upward and outward from the source.
Question 5: What may 'low burn' indicators near floor level suggest during a fire investigation?
- Possible accelerant use or intentional fire setting (Correct answer)
- Poor ventilation in the compartment
- The fire was extinguished very quickly
- An electrical fault in the floor system
Correct answer: Possible accelerant use or intentional fire setting
Low burn indicators below normal ignition height may suggest accelerant use or deliberate fire setting, as fires naturally burn upward.
Question 6: Which agency publishes the fire and explosion investigation methodology guide used across the US?
- NFPA (Correct answer)
- FEMA
- OSHA
- ICC
Correct answer: NFPA
NFPA publishes NFPA 921, the standard guide for fire and explosion investigation methodology used throughout the United States.
CFI CFI Fire Investigation & Documentation 2
What is 'burn pattern analysis' used for in fire investigation?