Fire Investigator: Principles and Practice to NFPA 921 and 1033, Fourth Edition.

Accelerant -Answer 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 -Answer 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 -Answer A space on a vessel designed for people to live in. Active Fire Protection System -Answer Any type of fire protection system that automatically activates upon detection of a fire condition. Addressable Technology -Answer Fire alarm and detection systems in which devices and system components are assigned a data address, are capable of two-way communication, and can perform certain activities based on signal input. Adolescent Firesetters -Answer Adolescents, ages 14 to 16 years, who are often responsible for fires that occur at places other than their homes. Adrift -Answer Loose, not on moorings or towline. Aerial Fuels -Answer All green or dead materials located in the forest canopy. Affidavit -Answer A voluntary written statement of fact or opinion made under oath and signed by the author. Afloat -Answer Floating in water; not sinking. Air Drop -Answer 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 -Answer The process of air or gases being drawn into a fire, plume, or jet. Air Sampling Smoke Detection -Answer A method of smoke detection designed to draw air from the protected area into a detection chamber for analysis. Alarm Pressure Switch -Answer 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. Alarm Signal -Answer A warning signal that alerts occupants of a fire emergency.