Ch38 Fire Cause

  1. List the 3 types of arsonists:
    • 1. Serial - 3+ w/ cooling off.
    • 2. Spree - 3+ different location, no cooling off.
    • 3. Mass - 3+ same location, short time period.
  2. If a fire spreads, flares up or re-kindles when water is applied is a sign of?
    possible use of an ignitable liquid was used.
  3. A fire caused by a person falling asleep with a lit cigarette is an example of a(n) __________ fire
    accidental
  4. A pathological fire setter is termed a(n)
    pyromaniac
  5. A pot left unattended on a stove that catches fire is an example of an act of
    omission
  6. A tiny quantity of physical evidence that is conveyed from one place to another is __________ evidence
    trace or transfer
  7. According to NFPA 921, what is the term for an arsonist who sets three or more fires at separate locations with no emotional cooling-off period between fires
    Spree
  8. According to NFPA statistics, what was the leading cause of fire in residential occupancies in 2011
    Cooking equipment
  9. After investigators have left a fire scene, what is required for them to reenter the site
    A warrant
  10. An arson investigation must determine which item
    Sequence of events
  11. Approximately how many agents are on an ATF team that would respond to assist in fire-cause determination on large-scale incidents
    15
  12. At which point should the fire department hand over control of a fire scene to the property owner
    After the investigator is finished collecting evidence
  13. Combustible materials positioned to spread fire are known as
    trailers
  14. During a fire investigation, which type of search pattern is used to examine a burned area
    Grid
  15. Information used to prove a theory, based on facts observed directly is called __________ evidence
    circumstantial
  16. Fifty-year-old deteriorating wiring is an example of which subtype of electrical fire cause
    Worn-out or defective equipment
  17. Fires that occur without criminal or malicious intent are classified as
    accidental
  18. a fire investigation can provide many ______ , even if the cause and origin are never determined.
    1. lessons
    2. victims
    3. facts
    4. pieces of evidence
    1. lessons
  19. The most important reason for investigating accidental fires is to determine cause to prevent future fires
    True
    False
    True
  20. A cause-and origin investigation determines where, why and how fire originated.
    True
    False
    True
  21. For how long can a fire department maintain control of a fire scene
    As long as needed to complete an investigation of cause
  22. Ideally, when should overhaul operations begin
    After the fire investigator has examined the scene
  23. In general, what is the primary responsibility of fire fighters in fire investigation
    Preservation of evidence
  24. Juvenile fire setters:
    • 1. Under 8 yo
    •     -Curiosity
    •     -near/in home

    • 2. 9-12 (pre-adolescent)
    •     -not far from home
    •     -spite/revenge, disruptive behavior
    •     - readily available fuel/acelerants
    •     schools/churches

    • 3. 13-17 (adolescent)
    •     - similar to adults
  25. Placing an electric heater too close to combustible materials is an example of which subtype of electrical fire cause
    Improper use
  26. Prior to any official statement by his or her department, how should a fire fighter response to an inquiry about the cause of a fire
    "The fire is under investigation"
  27. Removal and inspection of the layers of debris from a fire will most likely result in
    determination of the sequence of items burned
  28. The flow of heated gases from the point of origin is usually
    up and out
  29. The location where an ignition source comes into contact with a fuel supply is the
    point of origin
  30. Two thirds of fires set in vacant buildings are initiated by
    adolescents
  31. Using a light-duty extension cord to connect a heavy-duty appliance is an example of which subtype of electrical fire cause
    Defective installation
  32. What determines when is a fire investigator dispatched to a fire
    Local policy
  33. What does depth of char most reliably indicate
    Intensity and duration of burning
  34. What is indicated by a fire that flares up when water is applied to it
    Presence of an ignitable liquid
  35. What is suggested by an inverted cone burn pattern on a wall
    Ignitable liquid poured along the base of the wall
  36. What is the goal of fire-cause investigation
    To identify how the fire started
  37. What is the primary indicator of the point of origin in a structure fire
    Burn pattern on a wall
  38. What is the term for an ignition source that has enough heat energy to ignite the fuel and remains in contact with it long enough to cause ignition
    Competent
  39. What is the term for materials used to start a fire
    Incendiary device
  40. What is the term for the particular set of circumstances that brought the ignition source into contact with a fuel
    Cause
  41. What is the term for the process of maintaining continuous possession and control of evidence from the time it is discovered until it is used in court
    Chain of custody
  42. When moving inside the building to continue the fire investigation, where should the investigator begin
    The area with the lightest damage
  43. When should a fire building be turned over to the owner
    After the investigation is complete
  44. When should fire fighters begin making observations for use in a fire investigation
    During dispatch and response
  45. When should possible evidence be moved
    When necessary to protect it from damage
  46. Where do most structure fires occur
    Residences
  47. Where does the fire investigation process usually begin
    Exterior
  48. Which action should be taken with the clothing removed from a victim of a fire
    Preserved as evidence
  49. Which agency can provide technical expertise on a fire investigation
    Insurance company
  50. Which federal agency makes individual agents available to assist local jurisdictions with fire investigations
    ATF
  51. Which is the least common cause of residential fire
    Smoking
  52. Which kind of evidence includes facts that can be observed or reported firsthand
    Direct
  53. Which kind of evidence is used to validate a theory or show how something could have occurred
    Demonstrative
  54. Which pattern of char on a wall suggests that the fire spread upward from the base
    V
  55. Which task should be performed first when conducting a fire investigation
    Identify the point of origin
  56. Which term means the process of carefully looking for evidence in the debris following a fire
    Digging out
  57. Which term refers to all of the information gathered and used by an investigator in determining the cause of a fire
    Evidence
  58. Which type of evidence is an empty gasoline can
    Physical
  59. Who has the legal responsibility to determine the cause of fires in most jurisdictions
    Fire chief
  60. Why should fire fighters understand the basic principles of fire investigation
    It will help them to observe and preserve evidence
  61. Why do children younger than 8 years old typically set fires
    Curiosity
Author
M.Sellar
ID
352841
Card Set
Ch38 Fire Cause
Description
CH 38 Fire cause determination
Updated