Chromatography & Arson

True of False: The typical fire burns in an X pattern and moves upward in search of oxygen.

• True

• False

True or False: When arson investigators begin their work, they are in search of the point of origin of the fire.

• True

• False

True or False: Combustion is the rapid combination of oxygen with another substance, accompanied by production of heat and light.

• True

• False

Tags

NGSS.HS-PS1-5

True or False: Most arson crimes occur when someone tries to conceal a crime.

• True

• False

True or False: Fire evidence is collected and placed in envelopes or plastic bags and is packaged according to the chain of custody.

• True

• False

_____ are trails of accelerant use to carry a fire from one location to another.

• Streamers

• Vapors

• Burn patterns

• Hydrocarbons

Which of the following statement is true of arson investigation?

• A fuel must be present

• Oxygen must be available in sufficient quantity to combine with the fuel

• Hydrogen gas must be transformed into another state of matter

• Heat must be applied to initiate the combustion, and sufficient heat must be generated to sustain the reaction

The burning an unoccupied building such as an empty barn or an unoccupied house or other structure in order to claim insurance on such property is known as _____ degree arson.

• 1st

• 2nd

• 3rd

• 4th

Which of the following is NOT a way that investigators identify accelerants?

• Portable hydrocarbon detectors

• Accelerant sniffing dogs

• Identifiable pour patterns (that are then tested)

• Searching for the smell of gasoline

How many major categories are there for handwriting characteristics?

• 5

• 8

• 10

• 12