Fa Flashcards
Two types of panel that are used ?
Addressable and conventional
A device from another protection system that is actuated from the fire alarm is?
Ancillary device
Two types of smoke detectors
Photo electric and ionization.
Bell or horn is an example of
Notification cct
4 devices that would connected to an initiating cct are ?
Heat/smoke detector
Pull station/flow switch
A device used to remotely display signals from a FA panel is known as
Annunciator
3 examples of ancillary devices
Door mag
HVAC shutdown
Elevator shut down
An initiation cct that leaves the fa panel and terminates at the end of line resistor would be ?
Class b cct
A cct that leaves the FACP connects to remote devices and returns to FACP would be ?
Class A cct
Device used with an addressable FA system that will disconnect a portion of the system when a fault occurs is a?
ISO module
An electrical fire would be an example of what class ?
Class c
A ground fault or or open on a cct will be indicated by a ?
Trouble signal at the FACP
Two types of heat detectors are
Rate of rise and fixed temp
Three devices used in conjunction with the sprinkler system would be ?
Flow switch
Gate valve
Pressure switch
Activation of a flow switch would cause what in the FACP?
Alarm
Removing the cover of a flow switch activating the tamper cover switch would be indicated as what in the FACP
Trouble
What must be observed when installing devices addressable fire alarm system ?
Polarity
To control an ancilliary device from from an addressable what must be installed ?
Relay control module
To control an ancilliary device from a conventional system the ancilliary device must be hardwired back to a contact in the ?
Fa panel
A fire alarm system that initiates an alert signal that will be followed by an alarm signal within 5 min if not acknowledged is a ?
2 stage
What is the purpose of a fa system
To protect life and property
What devices are used to warn building occupants of a fire
Notification appliances
What notification appliances is used to warn hearing impaired people ?
Strobes
What notification appliances are audible ?
Horns, bells, sirens
What type of device is used to activate the FA system when abnormal conditions occur
Initiation devices
List 5 initiating devices devices and list if they are manual or automatic
Pull station-manual
Heat detector- auto
Smoke detector -auto
Gate valve - manual
Pressure switch-auto
Flow switch -auto
What is an ancillary device and list 3
A device or system operated from the FA PANEL
doormag
Fan shutdown
Elevators
Why are notification appliances supervised and are they polarity sensitive
To insure no device can be disconnected from cct
Yes they are polarity sensitive
What the main advantage of an addressable system over conventional?
Has exact location on devices instead of zones( more accurate )
Describe the installation of class b cct compared to class a cct
Class b cct leaves panel and terminated at eol
Class a cct leaves panel and comes back to the panel
What are the 3 different states of a FACP
Normal alarm trouble
What devices are connected to monitoring zones in FACP
Gate valve and pressure switch
What device is used with an addressable system to control ancillary equipment
Relay control module (RCM)
Which class of fire is wood ?
class a
What class is flammable liquid/gas
Class b
What class is combustible metal
Class d
What class is cooking under for a fire ?
Class k
What class of fire is electrical
Class c
What’s the diffence between single stage and two stage fa system?
Single goes right into alarm
two stage give you some time to clear the false before it goes into alarm
What is minimum clearance from the corner of a ceiling that a smoke detector can be installed
6”
What is the purpose of an iso module
It disconnected a portion of the doc cct
What are 4 stages of fire
Incipient
Smouldering
Flame
Heat
Which cct contains an end of line resistor
Class b
What determines the spacing of heat detectors
Manufactures info
What type of smoke detectors is better at detecting a wider variety of smoke types ranging from invisible to black
Ionization
What is the most common type of suppression system
Wet sprinkler
Which type of extinguishing system can endanger life and will have a delay/warning before it activates ?
Co2- halon
Indicate what condition would indicated at the FACP for a wire coming off the terminal of a heat detector
Trouble
Indicate what condition would indicated at the FACP for the positive wire touching the metal conduit
Trouble or ground fault
Indicate what condition would be indicated at the FACP for pull station
Alarm
Indicate what condition would be indicated at the FACP for a flow switch
Alarm
Indicate what condition would be indicated at the FACP for a gate valve
Trouble /supervisory
Indicate what condition would be indicated at the FACP for cutting the active initiating cct of a conventional system with side cutter
Alarm
Indicate what condition would be indicated at the FACP for reversing the polarity on a smoke detector
Trouble
Indicate what condition would be indicated at the FACP for removing the cover of a flow switch that has a tamper switch
Trouble
What type of smoke detector would have the least nuisance trippin near a kitchen ?
Photo electric
3 parts of fire triangle
Heat oxygen fuel
In a conventional fire alarm system what device is used to provide cct supervision ?
EOL
What signal condition is caused in a two stage system when initiating device is activated ?
Alert signal
In a conventional fire alarm system which ccts require an EOL resistor ?
Initiating cct and notification appliance
In a conventional system which devices are polarity sensitive
Smoke detectors
In an addressable system which devices are polarity sensitive
All of them ….. notification appliances modules and initiating devices
List 3 types of sprinkler tree devices and the condition each device will initiate through fa panel
Flow switch -alarm
Tamper switch-supervisory
Low pressure switch -supervisory
What type of cable connector must be used for linear heat detector cable ?
Strain relief connector
Reason for an EOL resistor in a fa system
Provide supervision of system
List 3 types of linear heat detector
Stand digital
Confirmed temp initiation
Fiber optic
How shall a stand linear heat detector be tested ?
Measure loop resistance
What type of addressable module can be used to interconnect a conventional cct/device to a addressable system
Monitoring module
