Detectors
Compare Ionization and photoelectric detectors
ionization is activated by smaller,invisible products of combustion while photoelectric is activated by larger, visible products of combustion
What is different about a Deluge head?
It has no cap or release mechanism.
What extinguishing system uses a liquid class K extinguishing agent and is used in new commercial kitchens?
Wet-chemical extinguishing system
What is the recommendation for when a smoke alarm/detector should be replaced?
Every 10 years
What detector projects a beam of light to a receiving unit
Beam detector
What is the set amount in a given period of time that the temp needs to change for the Rise-of-Rate detector to go off?
greater than 12 degrees per minute
Which head uses a small chemical plunger to hold the cap in place?
Chemical-Pellet Sprinkler Head
What suppression system is installed with computers or sensitive electronic equipment.
Gaseous Suppression System
What is the temperature rating for RED color code
325-375 degrees
Describe a Class I standpipe
Only for fire department use. Each outlet should have a valve to control the flow of water and a 2 1/2 inch male coupling for the fire hose
What detector is installed in air ducts of a building to sample the air moving through the air distribution system?
Duct Detector
Which sprinkler head is activated by the bulb being heated, the liquid vaporizes which increases the pressure until the glass breaks, releasing the cap?
Frangible-Bulb Sprinkler Head.
What suppression system displaces the oxygen in the room and smothers the fire.
Carbon Dioxide Extinguishing Systems
What notification system sends a signal directly to a station via a telephone line or radio signal?
Remote supervising station alarm system
What fire alarm requires activation of two separate detection devices before initiating the alarm
Cross-zoned system
Wire or tubing strung along the ceiling of large open areas to detect an increase in heat.
Line detector
What is the typical rating for sprinkler heads in a light-hazard occupancy?
135°F to 175°F
Which Suppression agent uses one or more different systems
Clean Agent Systems
What smoke control uses building features such as fire-rated walls and automatic fire doors.
Passive Smoke Control
What is a trouble signal
A signal initiated by a dispatch system or device.
What are the two components of a beam detector?
-receiving unit
A glass bulb is Yellow to help identify the temperature rating. What is the Maximum Ceiling Temperature and Temperature rating?
Ceiling temp: 150°F
Temp rating: 175-225°F
What suppression system is installed at self-service gasoline filling stations
Dry-Chemical
What detector is specialized in detecting electromagnetic waves produced by a flame
Flame detectors
What detection device responds when the temperature rises at a rate exceeding a predetermined value.
Rate-of-rise heat detector