Fire Officer p336

The purpose of interpreting fire patterns in fire investigation is to:

• Determine the origin and cause of the fire

• Identify the type of materials burned

• Estimate the time of the fire

• Assess the damage caused by the fire

Which of the following is a step in the scientific method as shown in FIGURE 13-1?

• Develop a hypothesis

• Ignore the data

• Skip the analysis

• Avoid defining the problem

According to FIGURE 13-2, where is the point of a V-shaped pattern typically located?

• At the top of the wall

• At the base of the V

• In the middle of the room

• Near the ceiling

The depth of char can assist in determining the direction of fire spread by:

• indicating the intensity of the fire in different areas.

• showing the wind direction during the fire.

• revealing the moisture content of the materials burned.

• demonstrating the speed of the fire spread.

What is the first step in the scientific method as shown in FIGURE 13-1?

• Observation

• Hypothesis

• Experiment

• Conclusion

What type of pattern is often the point of a fire's origin, as shown in FIGURE 13-2?

• V-pattern

• U-pattern

• Circular pattern

• Linear pattern

Which of the following is NOT a source of information for determining the area of origin of a fire?

• A) Physical marks

• B) Witness accounts

• C) Electrical arcing

• D) Weather conditions

The significance of deep charring in fire investigation is:

• It indicates the presence of an accelerant.

• It shows the fire was extinguished quickly.

• It suggests the fire was accidental.

• It means the fire was caused by electrical faults.