TFM 12 FIRE ALARM TECHNICAL EXAM
2026 UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
[ITM/Documentation] A deficiency found during inspection that impairs the system's
required operation should be: A) Noted for next year | B) Reported to the owner
promptly, with impairment procedures as needed until corrected | C) Ignored if the
building is occupied | D) Logged without notifying anyone - ANS-Correct answer:
Reported to the owner promptly, with impairment procedures as needed until
corrected (Choice B). Why: Impairments/critical deficiencies are reported to the
owner promptly, and interim measures (e.g., fire watch) are arranged until repair
is verified.
[NEC 760/300 Wiring] Survivability methods to protect circuits during a fire include: A)
Using thinner wire | B) 2-hour rated cable, a 2-hour rated enclosure/pathway, or routing
through fully sprinklered protected areas as allowed | C) Painting the conduit red | D)
Adding more EOL resistors - ANS-Correct answer: 2-hour rated cable, a 2-hour
rated enclosure/pathway, or routing through fully sprinklered protected areas as
allowed (Choice B). Why: Survivability is achieved with listed 2-hour rated
cable/assemblies, rated enclosures, or approved routing methods so the circuit
keeps working while fire damages part of the building.
[Power/Batteries] Reacceptance testing after a modification is intended to verify that: A)
Only the new devices work | B) The change works correctly AND did not adversely
affect existing system functions | C) The battery is new | D) The panel firmware is the
latest - ANS-Correct answer: The change works correctly AND did not adversely
affect existing system functions (Choice B). Why: Reacceptance testing checks
the added/changed components and confirms previously functioning portions
were not impaired by the modification.
[ITM/Documentation] A 'remote supervising station' system reports signals to: A) A
location on the protected premises only | B) A remote facility (such as a fire/police
communications center or remote monitoring point) acceptable to the AHJ | C) Local
bells only | D) A residential homeowner only - ANS-Correct answer: A remote facility
(such as a fire/police communications center or remote monitoring point)
acceptable to the AHJ (Choice B). Why: A remote supervising station system
transmits signals to an approved remote location (e.g., a public safety
communications center or remote monitoring facility) per Chapter 26.
,[NEC 760/300 Wiring] 'Listed' equipment means the equipment: A) Is on a price list | B)
Appears in a list published by an approved testing organization and meets designated
standards for its use | C) Is approved by the installer | D) Is the newest model available -
ANS-Correct answer: Appears in a list published by an approved testing
organization and meets designated standards for its use (Choice B). Why: Listed
means a recognized testing lab has evaluated the product to applicable standards
and published it in a list, confirming suitability for its intended use.
[Signals] An 'initiating device' is best defined as: A) A horn or strobe | B) A system
component that originates transmission of a change-of-state condition (e.g., detector,
pull station, waterflow switch) | C) The control panel | D) The standby battery - ANS-
Correct answer: A system component that originates transmission of a change-
of-state condition (e.g., detector, pull station, waterflow switch) (Choice B). Why:
Initiating devices originate signals (alarm, supervisory) - smoke/heat detectors,
manual stations, waterflow and tamper switches, etc.
[Notification Appliances] A 'notification appliance' is: A) A device that detects fire | B) A
component that provides an output stimulus (audible, visible, tactile, textual) to alert
occupants | C) The supervising station receiver | D) A power supply - ANS-Correct
answer: A component that provides an output stimulus (audible, visible, tactile,
textual) to alert occupants (Choice B). Why: Notification appliances deliver the
output to occupants - horns, bells, speakers, strobes, and tactile/textual
appliances.
[Power/Batteries] 'Survivability' and 'reliability' differ in that survivability specifically
addresses: A) Day-to-day component failure rates | B) Continued operation of circuits
during/after fire attack on the building | C) Battery shelf life | D) Installation cost - ANS-
Correct answer: Continued operation of circuits during/after fire attack on the
building (Choice B). Why: Reliability is general dependable operation;
survivability is the narrower requirement that the system keep functioning while a
fire physically damages part of the building.
[NEC 760/300 Wiring] To calculate total current draw on a NAC, you: A) Subtract the
appliance currents | B) Add the rated current of each appliance on the circuit | C) Use
the panel voltage only | D) Divide voltage by the number of strobes - ANS-Correct
answer: Add the rated current of each appliance on the circuit (Choice B). Why:
Appliances in parallel on a NAC draw additive current; total = sum of each
appliance's rated current. This total (with voltage drop) must stay within the
circuit/power-supply rating.
[Signals] A blocking diode is used with polarized notification appliances to: A) Increase
brightness | B) Allow supervision in standby (reverse polarity blocks operation) while
permitting activation in alarm (correct polarity) | C) Reduce battery size | D) Change the
audible tone - ANS-Correct answer: Allow supervision in standby (reverse polarity
blocks operation) while permitting activation in alarm (correct polarity) (Choice
B). Why: Basic electricity / NFPA 72: The diode lets a small supervisory current
,flow in reverse polarity (no activation) for monitoring, and full current in alarm
polarity to activate the appliance.
[Circuits/Pathways] If a NAC reads correct standby supervision but no appliances
activate on alarm, a likely cause is: A) The EOL resistor is missing | B) Reversed field
wiring polarity to the polarized appliances | C) Too many EOL resistors | D) The battery
is overcharged - ANS-Correct answer: Reversed field wiring polarity to the
polarized appliances (Choice B). Why: Polarized appliances won't fire if alarm-
polarity wiring is reversed, even though standby supervision (reverse polarity)
looks normal. Verify polarity at the appliances.
[Circuits/Pathways] On a riser diagram, a triangle or specific symbol at a circuit's far end
most often denotes: A) A power transformer | B) An end-of-line device (resistor/relay)
terminating and supervising the circuit | C) A junction to another building | D) A manual
pull station - ANS-Correct answer: An end-of-line device (resistor/relay)
terminating and supervising the circuit (Choice B). Why: Plans typically mark the
EOL device at the last point of a Class B circuit; always confirm via the drawing's
legend, as symbols vary by designer.
[NEC 760/300 Wiring] Reading a point-to-point wiring diagram, the term 'home run'
refers to: A) A device-to-device jumper | B) The conductor run from the control panel out
to the first device/field point | C) The EOL resistor leads | D) A spare conductor - ANS-
Correct answer: The conductor run from the control panel out to the first
device/field point (Choice B). Why: Field/drawing term: A home run is the cable
run from the panel to the field (the start of a circuit). Subsequent device-to-device
segments continue the loop.
[General] On a fire alarm legend, 'FACP' stands for: A) Fire Alarm Circuit Protector | B)
Fire Alarm Control Panel | C) Fire And Carbon Panel | D) Fault Alarm Control Point -
ANS-Correct answer: Fire Alarm Control Panel (Choice B). Why: FACP = Fire
Alarm Control Panel (also FACU, Fire Alarm Control Unit) - the system's brain that
monitors inputs and drives outputs.
[NEC 760/300 Wiring] If two conductors of a NAC are reading near 0 ohms to each
other with power off, that indicates: A) A normal open circuit | B) A short between the
conductors | C) A proper EOL termination | D) A ground fault to earth - ANS-Correct
answer: A short between the conductors (Choice B). Why: Near-zero resistance
between the two conductors means they are shorted together. A normal Class B
circuit reads the EOL resistor value, not zero.
[NEC 760/300 Wiring] Measuring continuity from a circuit conductor to building ground
that shows low resistance indicates: A) A healthy circuit | B) A ground fault (unintended
path to ground) | C) A short between the two circuit conductors | D) A correctly installed
EOL - ANS-Correct answer: A ground fault (unintended path to ground) (Choice
B). Why: Basic electricity / NFPA 72: A low-resistance reading from a conductor
, to ground indicates a ground fault, which must be located and cleared; the panel
reports it as a trouble.
[ITM/Documentation] When interpreting a sequence-of-operations matrix, an 'X' at the
intersection of an input zone and an output typically means: A) That output is disabled |
B) That input activates (maps to) that output | C) The output is on a different panel | D)
Nothing - it is decorative - ANS-Correct answer: That input activates (maps to) that
output (Choice B). Why: A cause-and-effect (input/output) matrix uses a mark
such as 'X' to show that a given input drives a given output - the basis for
verifying programming during testing.
[Power/Batteries] A multimeter set to DC volts placed across a fully charged 24V
standby battery pair should read approximately: A) 12V | B) Around 24-27V | C) 120V |
D) 0V - ANS-Correct answer: Around 24-27V (Choice B). Why: Two 12V batteries
in series for a 24V system read about 24-27V depending on charge/float voltage.
A reading near 0V or 12V suggests a failed battery or connection.
[Signals] A commercial kitchen hood suppression system, when it discharges, must
typically: A) Do nothing to the fire alarm | B) Signal the fire alarm system
(alarm/supervisory per design) and shut down cooking appliances/fuel | C) Only sound
a local horn | D) Reset automatically - ANS-Correct answer: Signal the fire alarm
system (alarm/supervisory per design) and shut down cooking appliances/fuel
(Choice B). Why: NFPA 17A / : Wet-chemical kitchen systems interlock to
shut off fuel/power to appliances and signal the fire alarm system upon
discharge.
[Interfaces/Other Standards] Door hold-open devices released by smoke detection are
intended to: A) Keep doors open during a fire | B) Release fire/smoke doors to the
closed position on detection, maintaining compartmentation | C) Lock all exit doors | D)
Disable the HVAC - ANS-Correct answer: Release fire/smoke doors to the closed
position on detection, maintaining compartmentation (Choice B). Why: Door hold-
open magnets release on alarm or required detection so rated doors can close
and maintain smoke/fire compartmentation. This is an NFPA 72 emergency-
control function topic.
[NEC 760/300 Wiring] Smoke control system interfaces (stairwell pressurization, smoke
exhaust) are coordinated under: A) NEC Article 760 only | B) NFPA 72 Chapter 21
emergency control functions (with the mechanical smoke-control design) | C) NFPA 13
only | D) The local plumbing code - ANS-Correct answer: NFPA 72 Chapter 21
emergency control functions (with the mechanical smoke-control design) (Choice
B). Why: Smoke-control interfaces are NFPA 72 Chapter 21 emergency control
functions coordinated with the building mechanical/smoke-control design.
[NEC 760/300 Wiring] Surge protection on fire alarm circuits leaving a building primarily
protects against: A) Voltage drop | B) Lightning-induced and other transient surges on
exposed conductors | C) Battery overcharge | D) Excessive standby time - ANS-
2026 UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
[ITM/Documentation] A deficiency found during inspection that impairs the system's
required operation should be: A) Noted for next year | B) Reported to the owner
promptly, with impairment procedures as needed until corrected | C) Ignored if the
building is occupied | D) Logged without notifying anyone - ANS-Correct answer:
Reported to the owner promptly, with impairment procedures as needed until
corrected (Choice B). Why: Impairments/critical deficiencies are reported to the
owner promptly, and interim measures (e.g., fire watch) are arranged until repair
is verified.
[NEC 760/300 Wiring] Survivability methods to protect circuits during a fire include: A)
Using thinner wire | B) 2-hour rated cable, a 2-hour rated enclosure/pathway, or routing
through fully sprinklered protected areas as allowed | C) Painting the conduit red | D)
Adding more EOL resistors - ANS-Correct answer: 2-hour rated cable, a 2-hour
rated enclosure/pathway, or routing through fully sprinklered protected areas as
allowed (Choice B). Why: Survivability is achieved with listed 2-hour rated
cable/assemblies, rated enclosures, or approved routing methods so the circuit
keeps working while fire damages part of the building.
[Power/Batteries] Reacceptance testing after a modification is intended to verify that: A)
Only the new devices work | B) The change works correctly AND did not adversely
affect existing system functions | C) The battery is new | D) The panel firmware is the
latest - ANS-Correct answer: The change works correctly AND did not adversely
affect existing system functions (Choice B). Why: Reacceptance testing checks
the added/changed components and confirms previously functioning portions
were not impaired by the modification.
[ITM/Documentation] A 'remote supervising station' system reports signals to: A) A
location on the protected premises only | B) A remote facility (such as a fire/police
communications center or remote monitoring point) acceptable to the AHJ | C) Local
bells only | D) A residential homeowner only - ANS-Correct answer: A remote facility
(such as a fire/police communications center or remote monitoring point)
acceptable to the AHJ (Choice B). Why: A remote supervising station system
transmits signals to an approved remote location (e.g., a public safety
communications center or remote monitoring facility) per Chapter 26.
,[NEC 760/300 Wiring] 'Listed' equipment means the equipment: A) Is on a price list | B)
Appears in a list published by an approved testing organization and meets designated
standards for its use | C) Is approved by the installer | D) Is the newest model available -
ANS-Correct answer: Appears in a list published by an approved testing
organization and meets designated standards for its use (Choice B). Why: Listed
means a recognized testing lab has evaluated the product to applicable standards
and published it in a list, confirming suitability for its intended use.
[Signals] An 'initiating device' is best defined as: A) A horn or strobe | B) A system
component that originates transmission of a change-of-state condition (e.g., detector,
pull station, waterflow switch) | C) The control panel | D) The standby battery - ANS-
Correct answer: A system component that originates transmission of a change-
of-state condition (e.g., detector, pull station, waterflow switch) (Choice B). Why:
Initiating devices originate signals (alarm, supervisory) - smoke/heat detectors,
manual stations, waterflow and tamper switches, etc.
[Notification Appliances] A 'notification appliance' is: A) A device that detects fire | B) A
component that provides an output stimulus (audible, visible, tactile, textual) to alert
occupants | C) The supervising station receiver | D) A power supply - ANS-Correct
answer: A component that provides an output stimulus (audible, visible, tactile,
textual) to alert occupants (Choice B). Why: Notification appliances deliver the
output to occupants - horns, bells, speakers, strobes, and tactile/textual
appliances.
[Power/Batteries] 'Survivability' and 'reliability' differ in that survivability specifically
addresses: A) Day-to-day component failure rates | B) Continued operation of circuits
during/after fire attack on the building | C) Battery shelf life | D) Installation cost - ANS-
Correct answer: Continued operation of circuits during/after fire attack on the
building (Choice B). Why: Reliability is general dependable operation;
survivability is the narrower requirement that the system keep functioning while a
fire physically damages part of the building.
[NEC 760/300 Wiring] To calculate total current draw on a NAC, you: A) Subtract the
appliance currents | B) Add the rated current of each appliance on the circuit | C) Use
the panel voltage only | D) Divide voltage by the number of strobes - ANS-Correct
answer: Add the rated current of each appliance on the circuit (Choice B). Why:
Appliances in parallel on a NAC draw additive current; total = sum of each
appliance's rated current. This total (with voltage drop) must stay within the
circuit/power-supply rating.
[Signals] A blocking diode is used with polarized notification appliances to: A) Increase
brightness | B) Allow supervision in standby (reverse polarity blocks operation) while
permitting activation in alarm (correct polarity) | C) Reduce battery size | D) Change the
audible tone - ANS-Correct answer: Allow supervision in standby (reverse polarity
blocks operation) while permitting activation in alarm (correct polarity) (Choice
B). Why: Basic electricity / NFPA 72: The diode lets a small supervisory current
,flow in reverse polarity (no activation) for monitoring, and full current in alarm
polarity to activate the appliance.
[Circuits/Pathways] If a NAC reads correct standby supervision but no appliances
activate on alarm, a likely cause is: A) The EOL resistor is missing | B) Reversed field
wiring polarity to the polarized appliances | C) Too many EOL resistors | D) The battery
is overcharged - ANS-Correct answer: Reversed field wiring polarity to the
polarized appliances (Choice B). Why: Polarized appliances won't fire if alarm-
polarity wiring is reversed, even though standby supervision (reverse polarity)
looks normal. Verify polarity at the appliances.
[Circuits/Pathways] On a riser diagram, a triangle or specific symbol at a circuit's far end
most often denotes: A) A power transformer | B) An end-of-line device (resistor/relay)
terminating and supervising the circuit | C) A junction to another building | D) A manual
pull station - ANS-Correct answer: An end-of-line device (resistor/relay)
terminating and supervising the circuit (Choice B). Why: Plans typically mark the
EOL device at the last point of a Class B circuit; always confirm via the drawing's
legend, as symbols vary by designer.
[NEC 760/300 Wiring] Reading a point-to-point wiring diagram, the term 'home run'
refers to: A) A device-to-device jumper | B) The conductor run from the control panel out
to the first device/field point | C) The EOL resistor leads | D) A spare conductor - ANS-
Correct answer: The conductor run from the control panel out to the first
device/field point (Choice B). Why: Field/drawing term: A home run is the cable
run from the panel to the field (the start of a circuit). Subsequent device-to-device
segments continue the loop.
[General] On a fire alarm legend, 'FACP' stands for: A) Fire Alarm Circuit Protector | B)
Fire Alarm Control Panel | C) Fire And Carbon Panel | D) Fault Alarm Control Point -
ANS-Correct answer: Fire Alarm Control Panel (Choice B). Why: FACP = Fire
Alarm Control Panel (also FACU, Fire Alarm Control Unit) - the system's brain that
monitors inputs and drives outputs.
[NEC 760/300 Wiring] If two conductors of a NAC are reading near 0 ohms to each
other with power off, that indicates: A) A normal open circuit | B) A short between the
conductors | C) A proper EOL termination | D) A ground fault to earth - ANS-Correct
answer: A short between the conductors (Choice B). Why: Near-zero resistance
between the two conductors means they are shorted together. A normal Class B
circuit reads the EOL resistor value, not zero.
[NEC 760/300 Wiring] Measuring continuity from a circuit conductor to building ground
that shows low resistance indicates: A) A healthy circuit | B) A ground fault (unintended
path to ground) | C) A short between the two circuit conductors | D) A correctly installed
EOL - ANS-Correct answer: A ground fault (unintended path to ground) (Choice
B). Why: Basic electricity / NFPA 72: A low-resistance reading from a conductor
, to ground indicates a ground fault, which must be located and cleared; the panel
reports it as a trouble.
[ITM/Documentation] When interpreting a sequence-of-operations matrix, an 'X' at the
intersection of an input zone and an output typically means: A) That output is disabled |
B) That input activates (maps to) that output | C) The output is on a different panel | D)
Nothing - it is decorative - ANS-Correct answer: That input activates (maps to) that
output (Choice B). Why: A cause-and-effect (input/output) matrix uses a mark
such as 'X' to show that a given input drives a given output - the basis for
verifying programming during testing.
[Power/Batteries] A multimeter set to DC volts placed across a fully charged 24V
standby battery pair should read approximately: A) 12V | B) Around 24-27V | C) 120V |
D) 0V - ANS-Correct answer: Around 24-27V (Choice B). Why: Two 12V batteries
in series for a 24V system read about 24-27V depending on charge/float voltage.
A reading near 0V or 12V suggests a failed battery or connection.
[Signals] A commercial kitchen hood suppression system, when it discharges, must
typically: A) Do nothing to the fire alarm | B) Signal the fire alarm system
(alarm/supervisory per design) and shut down cooking appliances/fuel | C) Only sound
a local horn | D) Reset automatically - ANS-Correct answer: Signal the fire alarm
system (alarm/supervisory per design) and shut down cooking appliances/fuel
(Choice B). Why: NFPA 17A / : Wet-chemical kitchen systems interlock to
shut off fuel/power to appliances and signal the fire alarm system upon
discharge.
[Interfaces/Other Standards] Door hold-open devices released by smoke detection are
intended to: A) Keep doors open during a fire | B) Release fire/smoke doors to the
closed position on detection, maintaining compartmentation | C) Lock all exit doors | D)
Disable the HVAC - ANS-Correct answer: Release fire/smoke doors to the closed
position on detection, maintaining compartmentation (Choice B). Why: Door hold-
open magnets release on alarm or required detection so rated doors can close
and maintain smoke/fire compartmentation. This is an NFPA 72 emergency-
control function topic.
[NEC 760/300 Wiring] Smoke control system interfaces (stairwell pressurization, smoke
exhaust) are coordinated under: A) NEC Article 760 only | B) NFPA 72 Chapter 21
emergency control functions (with the mechanical smoke-control design) | C) NFPA 13
only | D) The local plumbing code - ANS-Correct answer: NFPA 72 Chapter 21
emergency control functions (with the mechanical smoke-control design) (Choice
B). Why: Smoke-control interfaces are NFPA 72 Chapter 21 emergency control
functions coordinated with the building mechanical/smoke-control design.
[NEC 760/300 Wiring] Surge protection on fire alarm circuits leaving a building primarily
protects against: A) Voltage drop | B) Lightning-induced and other transient surges on
exposed conductors | C) Battery overcharge | D) Excessive standby time - ANS-
