Chapter 26 Fire Detection, Suppression, and Smoke Control Systems Flashcards
A fire detector that detects either abnormally high temperature or rate of temperature rise or both
Heat detector
A measure of the percentage of light transmission that is blocked between a sender and a receiver unit
Obscuration rate
A device that responds when the temperature rises at a rate exceeding a predetermined value
Rate of rise heat detector
A fixed fire protection system that discharges very fine water mist particles through specialized nozzles that extinguish by displacing oxygen, cooling, and blocking radiant heat
Water mist system
A device with components made from two distinct metals that respond differently to heat. When heated, the metals will bend or change shape.
Bimetallic strip
A fire alarm system that sounds an alarm only in the building where it was activated; that is, no signal is sent out of the building
Protected premises fire alarm system
Any fire alarm device or system or fire-extinguishing device or system, or combination thereof, that is designed and installed for detecting, controlling, or extinguishing a fire or otherwise alerting occupants, or the fire department, or both
Fire protection system
A sprinkler control valve that is mounted on the outside wall of a building. The position of the indicator tells whether the valve is open or shut.
Wall post indicator valve
A standard fire alarm audible signal for alerting occupants of a building.
Temporal- 3 pattern
A fire suppression system designed to protect either a single room or series of rooms by flooding the area with carbon dioxide
Carbon dioxide extinguishing system
The working ends of a sprinkler system that serve to activate the system and to apply water to the fire.
Automatic sprinkler heads
A sprinkler that is mounted on a wall and discharges water horizontally into a room
Sidewall sprinkler head
A standpipe system containing water at all times that is attached to a water supply capable of supplying the system demand and that requires no action other than opening a hose valve to provide water at hose connections
Automatic wet standpipe system
A manual fire alarm activation device in which the user takes a single step—such as moving a lever, toggle, or handle—to activate the alarm
Single-action pull station
A device that detects visible and invisible products of combustion and sends a signal to a fire alarm control unit
Smoke detector
A manual fire alarm activation device that requires two steps to activate the alarm. The user must push in a flap, lift a cover, or break a piece of glass before activating the alarm
Double action pull station
A mechanical system that can create positive or negative pressure to control, alter, and limit the spread of smoke and gases
Smoke control system
A self-contained extinguishing system that expels an electrically nonconducting, volatile, or gaseous fire extinguishant that does not leave a residue upon evaporation
Clean agent extinguishing system
A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire extinguishment to supplement existing water supplies
Fire department connection
A sprinkler head designed to react quickly and suppress a fire in its early stages.
Early suppression fast response sprinkler head
