NFPA 1033 Prep

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Questions and Answers

An investigator entering a structure soon after the fire is believed to be extinguished should:

  • Be alert to the possibility of rekindling
  • Move from area to area of the fire scene as quickly as possible
  • Be aware of the safest and fastest means of egress
  • Both A and C are correct (correct)

Many jurisdictions have enacted statutes requiring that information be released to public officials regarding fires that may have been the result of:

  • A criminal act (correct)
  • Actions of the fire marshal
  • Accidental acts
  • An explosion

The minimum temperature to which a substance must be heated in order to ignite under specific test conditions is known as:

  • Pyrolysis/pyrophoric action
  • Flashover
  • Ignition temperature (correct)
  • Flash point

The preliminary scene assessment of how a fire spreads through a structure is developed by noting the areas of _______ and ________, and attempting to track the fire _______.

<p>Lesser destruction, greater destruction, back to its point of origin (C)</p> Signup and view all the answers

Vapor density is defined as the weight of:

<p>Gas as compared to the weight of air (A)</p> Signup and view all the answers

Heat can travel throughout a burning building by one or more of three methods, which are:

<p>Conduction, radiation, and convection (A)</p> Signup and view all the answers

The transition phase during a compartment fire where all contents reach their ignition temperature and simultaneously ignite is called:

<p>Flashover (A)</p> Signup and view all the answers

The heating of a steel beam that carries heat to an unexpected part of the building and starts another fire would be an example of:

<p>Conduction (A)</p> Signup and view all the answers

Which of the following statements concerning "V" patterns is correct?

<p>The value of these patterns lies in the direction of spread that they depict, NOT what caused them (C)</p> Signup and view all the answers

The upper and lower concentrations of a vapor that will produce a flame at a given pressure and temperature are called:

<p>Flammable and explosive limits (C)</p> Signup and view all the answers

Mechanical heat energy initiated by the movement between objects in contact with one another defines _______ heating.

<p>Frictional (B)</p> Signup and view all the answers

In motor vehicle post-crash situations, the crushing or cutting of the battery or starter cables may cause:

<p>Arcing (A)</p> Signup and view all the answers

Electrical heat energy in the form of an arc between oppositely charged conductors bet defines:

<p>Static-electricity (D)</p> Signup and view all the answers

In conducting a fire investigation where electricity is suspected as the cause, the investigator should examine the service panel for all of the following except:

<p>Color coding of conductors (B)</p> Signup and view all the answers

Combustible dusts present a unique hazard because of their ability to form _______ mixtures within an enclosure.

<p>Explosive (C)</p> Signup and view all the answers

Fire scene sketches should be considered an important supplement to photographs and written notes. Their main importance to the investigation is to:

<p>Portray the accurate location of evidence found at the scene (B)</p> Signup and view all the answers

All of the following can be considered a purpose of structural photographs except to:

<p>Protect the investigator from civil liability (C)</p> Signup and view all the answers

The search of an explosion scene requires that searchers be briefed about the proper procedures for identifying, logging, photographing, _________, and _________ the location of the evidence.

<p>Marking, mapping (A)</p> Signup and view all the answers

The form of arson evidence MOST COMMONLY submitted for analysis is:

<p>Solid debris suspected of containing volatile liquids (D)</p> Signup and view all the answers

The decision regarding what physical evidence to collect at the incident scene rests with the:

<p>Fire investigator (D)</p> Signup and view all the answers

Most contamination of physical evidence occurs during:

<p>Collection (A)</p> Signup and view all the answers

Traces of suspected accelerant liquids can be recovered from concrete by absorbing them into any of the following materials except:

<p>Laundry soap (C)</p> Signup and view all the answers

As a fire investigator, the purpose of an interview is to gather:

<p>Useful and accurate information (B)</p> Signup and view all the answers

While conducting an interview, it is important to remember that privileged communications apply to all of the following persons within a relationship except:

<p>Fire chief and fire marshal (B)</p> Signup and view all the answers

A fire investigator can obtain a copy of a death certificate from the county coroner/medical examiner or the:

<p>Municipal health department (C)</p> Signup and view all the answers

Reports, documents, reference materials, and newspapers are all forms of _______ sources.

<p>Written (D)</p> Signup and view all the answers

Safety equipment and clothing should be worn by the investigator on the fire scene:

<p>At all times (D)</p> Signup and view all the answers

To use personal protective equipment or other safety equipment, the investigator needs:

<p>Specialized or appropriate training (A)</p> Signup and view all the answers

Long periods of strenuous labor by investigators on a fire scene can lead to:

<p>Inability to recognize and respond to hazardous conditions (C)</p> Signup and view all the answers

Read the following statements and select your answer from choices A-D:

STATEMENT 1: The investigator should ascertain the basis and extent of his or her authority to conduct the investigation.

STATEMENT 2: The authority to investigate is given to police officers, firefighters, and fire marshals according to the law of the jurisdiction.

STATEMENT 3: Private fire investigators have the same authority to investigate.

<p>Statements 1 &amp; 2 are true; statement 3 is false (B)</p> Signup and view all the answers

The right of entry refers to the legal right to be on a given premise. Such entry can be obtained by:

<p>All of the above pg. 221 (D)</p> Signup and view all the answers

An incendiary fire is:

<p>A fire that is deliberately set (D)</p> Signup and view all the answers

The preservation of evidence at the fire scene should begin with the:

<p>First arriving fire units/police authorities (C)</p> Signup and view all the answers

Read the following statements regarding the securing of a fire or explosion scene then select your answer from the choices A-D.

STATEMENT 1: The size of the perimeter for both fire and explosion scenes may change several times during the incident.

STATEMENT 2: The perimeter for explosions should be established at 450 meters beyond the location of the farthest piece of debris found.

STATEMENT 3: Access to the scene through the perimeter should be strictly monitored, with all persons who enter and leave being required to log in and out.

<p>Statements 1 &amp; 3 are true; statement 2 is false (C)</p> Signup and view all the answers

The presence of a thick, oily soot on glass, including hydrocarbon residues, is proof of the presence of:

<p>Incomplete combustion (B)</p> Signup and view all the answers

Inverted cone patterns are commonly caused by:

<p>Vertical flame plumes not reaching the ceiling (C)</p> Signup and view all the answers

When referring to the L.E.L. of a flammable or combustible liquid, what does L.E.L. mean?

<p>Lower Explosive Limit (C)</p> Signup and view all the answers

Most contamination of physical evidence occurs during:

<p>Collection (C)</p> Signup and view all the answers

The area where a fire began is the:

<p>Area of origin (A)</p> Signup and view all the answers

The common hazard associated with heating appliances is:

<p>Proximity of installation to combustibles (B)</p> Signup and view all the answers

An abnormal connection of low resistance between conductors where the resistance is normally much greater is a(n):

<p>Short circuit (C)</p> Signup and view all the answers

Two major types of explosions are:

<p>Mechanical and chemical (C)</p> Signup and view all the answers

A sketch depicting the general arrangement of the property in reference to sewer, water, electrical distribution, and other important features is a:

<p>Site plan (A)</p> Signup and view all the answers

Fire scene sketches should be considered important supplements to ________ and ________, not replacements for them.

<p>Photographs, written notes (C)</p> Signup and view all the answers

The purpose of providing photographs of a fire scene is to:

<p>Provide an accurate record of the scene (A)</p> Signup and view all the answers

What can be considered a purpose of structural photographs?

<p>Show damage to the structure and burn patterns (B)</p> Signup and view all the answers

The proper recording of a fire scene requires:

<p>Photographs (A)</p> Signup and view all the answers

The establishment of the cause and manner of death is the responsibility of the:

<p>Coroner or medical examiner (C)</p> Signup and view all the answers

When collecting physical evidence for examination and testing, it is often necessary to also collect:

<p>Comparison samples (D)</p> Signup and view all the answers

Suspected chemical incendiary mixtures may be packaged in which of the following containers:

<p>Glass jars (D)</p> Signup and view all the answers

If an investigator suspects that mechanical or electrical equipment is the course of ignition, they should:

<p>Choose a comparison sample using the same make and model (B)</p> Signup and view all the answers

Records of transfer of evidence from person to person is:

<p>Chain of custody (B)</p> Signup and view all the answers

Which is true regarding the disposition of evidence after the completion of an investigation?

<p>A written record of authorization to dispose of the evidence should be kept (C)</p> Signup and view all the answers

While preparing to conduct an interview, you should always:

<p>Develop questions ahead of time (D)</p> Signup and view all the answers

The two most common methods of documenting an interview are to:

<p>Tape record and take written notes (D)</p> Signup and view all the answers

While correlating data and evaluating source information, a credible source that should be considered is:

<p>Public records maintained by the fire department (C)</p> Signup and view all the answers

A hypothesis must withstand the test of deductive reason or the investigator should:

<p>Discard it as not proveable (A)</p> Signup and view all the answers

The predominant service that a laboratory provides to fire investigators is the analysis of fire debris to:

<p>Identify suspected volatile accelerants (C)</p> Signup and view all the answers

What should be included in the summary section of an investigation report?

<p>Conclusions about the origin and cause of the fire (C)</p> Signup and view all the answers

A goal of every fire investigation is to produce ________ documents, samples, statements, information, data, and ________.

<p>Reliable, conclusions (B)</p> Signup and view all the answers

When testifying in legal proceedings, a witness should testify:

<p>In a clear, firm voice using understandable language and terms (A)</p> Signup and view all the answers

A fire investigator qualified as an expert should provide:

<p>Information to aid the judge and jury in understanding the facts at issue (C)</p> Signup and view all the answers

To qualify as an expert witness you must:

<p>Possesses special knowledge, training, and experience in the area of expertise (D)</p> Signup and view all the answers

Flashcards

Fire Spread Assessment

Areas showing less damage and more damage help trace the fire's path back to where it started.

Ignition Temperature

The temperature a substance needs to reach to start burning under specific conditions.

Vapor Density

Weight of a gas compared to the weight of air.

Heat Transfer Methods

Conduction, radiation and convection.

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Flashover

The point when everything in a room gets hot enough to burst into flames at once.

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Conduction (Heat Transfer)

Heat moving through a material to start a fire elsewhere.

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"V" Patterns

These point towards the direction the fire spread, not what caused it.

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Flammable/Explosive Limits

Lowest and highest amounts of a gas that will burn.

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Frictional Heating

Heat from things rubbing together.

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Arcing (Vehicle Fires)

Sparks from damaged car battery cables.

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Static Electricity (Heat)

Arc between charged things.

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Combustible Dust

Dust that can explode when mixed with air.

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Fire Scene Sketches

Where evidence was located at a fire scene.

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Structural Photographs

To show damage, locate burn patterns

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Explosion Scene Search

Identifying, logging, photographing, marking and mapping.

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Arson Evidence

Solid debris

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Evidence Collection Decision

The fire investigator

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Contamination of Evidence

During the collection process.

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Interview Purpose

To gather accurate information.

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Death Certificate Source

Municipal health department.

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Written source

Reports, documents, reference materials, and newspapers.

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PPE on Fire Scene

At all times.

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Safety equipment training

Specialized or appropriate training.

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Strenuous labor

Inability to recognize and respond to hazardous conditions.

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Right of Entry

All of the above.

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Incendiary Fire

A fire that is deliberately set.

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Preservation start

First arriving fire units/police authorities.

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Oily Soot

Incomplete combustion.

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Inverted Cone Pattern

Vertical flame plumes not reaching the ceiling.

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The area where a fire began is the:

Area of origin.

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