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NFPA 921 Fire Investigator: Principles and Practice to and 1033, Fourth Edition Exam Questions and Answers 100% Pass $12.99   Add to cart

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NFPA 921 Fire Investigator: Principles and Practice to and 1033, Fourth Edition Exam Questions and Answers 100% Pass

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NFPA 921 Fire Investigator: Principles and Practice to and 1033, Fourth Edition Exam Questions and Answers 100% Pass Accelerant - Any fuel or oxidizer, often an ignitable liquid, used to initiate a fire or increase the rate of growth or speed the spread of fire. Accidental Fires - Fires for w...

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  • October 25, 2024
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NFPA 921 Fire Investigator: Principles

and Practice to and 1033, Fourth Edition

Exam Questions and Answers 100%

Pass


Accelerant - ✔✔Any fuel or oxidizer, often an ignitable liquid, used to

initiate a fire or increase the rate of growth or speed the spread of fire.

Accidental Fires - ✔✔Fires for which the proven cause does not involve an

intentional human act to ignite or spread fire into an area where the fire

should not be.

Accommodation Space - ✔✔A space on a vessel designed for people to

live in.

Active Fire Protection System - ✔✔Any type of fire protection system that

automatically activates upon detection of a fire condition.

Addressable Technology - ✔✔Fire alarm and detection systems in which

devices and system components are assigned a data address, are capable

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
of two-way communication, and can perform certain activities based on

signal input.

Adolescent Firesetters - ✔✔Adolescents, ages 14 to 16 years, who are

often responsible for fires that occur at places other than their homes.

Adrift - ✔✔Loose, not on moorings or towline.

Aerial Fuels - ✔✔All green or dead materials located in the forest canopy.

Affidavit - ✔✔A voluntary written statement of fact or opinion made under

oath and signed by the author.

Afloat - ✔✔Floating in water; not sinking.

Air Drop - ✔✔The aerial application of water, foam, or retardant mixture

directly onto the fire or threatened area or along a strategic position ahead

of the fire.

Air Entrainment - ✔✔The process of air or gases being drawn into a fire,

plume, or jet.

Air Sampling Smoke Detection - ✔✔A method of smoke detection designed

to draw air from the protected area into a detection chamber for analysis.

Alarm Pressure Switch - ✔✔A type of initiating device installed on all types

of wet-based fire suppression systems; the device initiates a fire alarm

signal once a water pressure threshold is met.

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Alarm Signal - ✔✔A warning signal that alerts occupants of a fire

emergency.

Alloying - ✔✔The mixture of two or more metals in which one or more of

the metals is in a liquefied state.

Alternating Current (AC) - ✔✔The voltage varies in time with a sine wave at

60 cycles per second. A sine-wave current results if the load is resistive.

Ambient Temperature - ✔✔Air temperature of the surrounding

environment.

Ampacity - ✔✔The current, in amperes, that a conductor can carry

continuously under the conditions of use without exceeding its temperature

rating.

Amperage - ✔✔The unit of electric current that is equivalent to a flow of

one coulomb per second; one coulomb is defined as 6.24 x 10^18 (18th

power) electrons.

Annunciation Panel - ✔✔A device that uses indicating lamps, alphanumeric

displays, or other means to provide first responders with status, condition,

and location information concerning fire alarm system components and

devices.

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Arc Mapping - ✔✔The analysis of the locations where electrical arcing has

caused damage and the documentation of the involved electrical circuits.

Arc Survey Diagrams - ✔✔Locations of electrical arcing are identified and

plotted on a diagram of the affected area of the structure. The spatial

relationship of the arc sites can create a pattern and help establish the

sequence of damage. This analysis can be used on building circuits and

electrical devices within a compartment to help identify or narrow the area

of origin.

Arc Tube - ✔✔A cylinder of fused silica/quartz with electrodes at either end

that is used in most mercury and metal halide lamps.

Arc - ✔✔A high-temperature luminous electric discharge across a gap

where the conductor is missing or through a medium such as charred

insulation.

Arced and Severed - ✔✔Occurs when wires are arced off on the ends and

possible segmented wires result.

Arc-Fault Circuit Interrupter (AFCI) - ✔✔Designed to protect against fires

caused by arcing faults in home electrical wiring. The circuitry continuously

monitors current flow.

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