Fire Detection And Alarm Systems (Mod A) Flashcards
(12 cards)
What are the 4 stages of fire?
Incipient
Smouldering
Flame
High heat
What’s the incipient stage of a fire?
No obvious signs of a fire
Smoke, flame or heat may not be apparent
The NBC(AE) requires this of visual signal devices:
To be installed to that the signal can be seen throughout the entire floor
What are Ancillary equipment?
Components that have a life safety application and are actuated by a fire alarm system but ARE NOT PART OF THE FIRE ALARM SYSTEM
T OR F:
Ancillary equipment must not compromise the operation of the fire alarm system?
True
Door Hold Open devices are also called what?
(Door) Releases
What are four main types of automatic sprinkler systems?
Wet-pipe
Dry-pipe
Pre-action
Deluge
A two-stage manual pull station consists of a single-pole switch activated by a pull mechanism to initiate an alert signal, and a second switch activated by a key to initiate an alarm signal.
True
Ultra Violet flame detectors are sensitive to what?
Flames from:
Burning gasoline
Welding operations &
Mercury Vapor arc lamps
Infrared detectors are sensitive to what?
Burning gasoline
Fuel oil
Naphtha
Or
Wood
A single stage pull station (which is NO) when closed will:
Send an alarm signal to the fire alarm control panel
Smoke alarms must be installed so that they are:
Backed up with a battery
Without a disconnect between the breaker and the device
