TFM 12 FIRE ALARM TECHNICAL ACTUAL
EXAM QUESTIONS WITH VERIFIED ANSWERS
2026 | Practice Questions | A+ Verified
• What is PLFA an abbreviation for? -✓✓Power Limited Fire Alarm system.
• What does NPLFA stand for? -✓✓Non-Power Limited Fire Alarm system.
• Difference between PLFA and NPLFA? -✓✓NPLFA can operate at up to 600V, while
PLFA has voltage and power limited by a listed power source.
• Material for NPFLA Circuit Conductors? -✓✓Only solid and/or stranded copper is
permitted.
• What does AWG stand for? -✓✓American Wire Gauge used for measuring wire sizes.
• Permitted size conductors for NPLFA system? -✓✓18 AWG or larger, meeting specific
ampacities and installation requirements.
• Size of conductors for PLFA system? -✓✓26 AWG for multi-conductor cable, 18 AWG
for single conductor.
• Protection for transformers in PLFA and NPLFA systems? -✓✓Over-current device
not exceeding 20A for PLFA, 7A for 18 AWG in NPLFA, refer to NFPA 70 for larger
sizes.
• How to fasten cables within 7 feet of the floor? -✓✓Cables should be fastened at
intervals of not more than 18 inches in an approved manner.
• Minimum AWG for single conductors? -✓✓18 AWG is the smallest permitted size.
• When are 26 AWG conductors permitted? -✓✓When used in a multi-conductor cable.
• How should PFLA conductors be installed? -✓✓PFLA conductors shall not be
strapped, taped, or attached to the exterior of any conduit or raceway.
• Define Plenum cable. -✓✓Cable that can be installed in ducts, plenums, or other
spaces used for environmental air, with fire-resistant and low smoke-producing
characteristics.
• What is a Riser cable used for? -✓✓Vertical wire runs in shafts between floors,
preventing fire spread between floors.
, • What is the purpose of general purpose cable? -✓✓For general fire alarm use,
resistant to fire spread.
• Type requirement for Plenum cable and allowed substitutions. -✓✓FPLP; CMP can be
substituted.
• Type requirement for Riser cable and allowed substitutions. -✓✓FPLR; CMR, FPLP,
and CMP can be substituted.
• Type requirement for general purpose wire and substitutions. -✓✓FPL; CMG, CM,
CMP, FPLP, CMR, FPLR, can be substituted.
• Maximum voltage for multi-conductor NPFLA cables. -✓✓150 volts
• Voltage rating of PFLA cables. -✓✓Not less than 300 volts
• Shall the Voltage Rating be Marked on PFLA Cables? -✓✓No, the voltage rating is
not marked on PFLA cables.
• What is a Rate Compensation Detector? -✓✓A device that responds when the
temperature reaches a set level, regardless of the rate of temperature increase.
• What is a Smoke Detector? -✓✓A device that detects both visible and invisible
combustion particles.
• Which Detector is Best at Detecting Invisible Particles? -✓✓Ionization detectors are
best at detecting invisible particles.
• Which Detector is Better at Detecting Visible Smoke Particles? -✓✓Photoelectric
detectors are better at detecting visible smoke particles.
• What is a Spot Type Detector? -✓✓A device that concentrates detecting elements at
a specific location.
• What is a Digital Alarm Communicator Transmitter (DACT)? -✓✓A system component
at the protected premises that connects to initiating devices to transmit signals to a
DACR.
• What is a Digital Alarm Communicator Receiver (DACR)? -✓✓A system component
that accepts and displays signals from a DACT over the public phone network.
• What is an Alarm Signal? -✓✓A signal triggered by manual or automatic detection of
an alarm condition.
EXAM QUESTIONS WITH VERIFIED ANSWERS
2026 | Practice Questions | A+ Verified
• What is PLFA an abbreviation for? -✓✓Power Limited Fire Alarm system.
• What does NPLFA stand for? -✓✓Non-Power Limited Fire Alarm system.
• Difference between PLFA and NPLFA? -✓✓NPLFA can operate at up to 600V, while
PLFA has voltage and power limited by a listed power source.
• Material for NPFLA Circuit Conductors? -✓✓Only solid and/or stranded copper is
permitted.
• What does AWG stand for? -✓✓American Wire Gauge used for measuring wire sizes.
• Permitted size conductors for NPLFA system? -✓✓18 AWG or larger, meeting specific
ampacities and installation requirements.
• Size of conductors for PLFA system? -✓✓26 AWG for multi-conductor cable, 18 AWG
for single conductor.
• Protection for transformers in PLFA and NPLFA systems? -✓✓Over-current device
not exceeding 20A for PLFA, 7A for 18 AWG in NPLFA, refer to NFPA 70 for larger
sizes.
• How to fasten cables within 7 feet of the floor? -✓✓Cables should be fastened at
intervals of not more than 18 inches in an approved manner.
• Minimum AWG for single conductors? -✓✓18 AWG is the smallest permitted size.
• When are 26 AWG conductors permitted? -✓✓When used in a multi-conductor cable.
• How should PFLA conductors be installed? -✓✓PFLA conductors shall not be
strapped, taped, or attached to the exterior of any conduit or raceway.
• Define Plenum cable. -✓✓Cable that can be installed in ducts, plenums, or other
spaces used for environmental air, with fire-resistant and low smoke-producing
characteristics.
• What is a Riser cable used for? -✓✓Vertical wire runs in shafts between floors,
preventing fire spread between floors.
, • What is the purpose of general purpose cable? -✓✓For general fire alarm use,
resistant to fire spread.
• Type requirement for Plenum cable and allowed substitutions. -✓✓FPLP; CMP can be
substituted.
• Type requirement for Riser cable and allowed substitutions. -✓✓FPLR; CMR, FPLP,
and CMP can be substituted.
• Type requirement for general purpose wire and substitutions. -✓✓FPL; CMG, CM,
CMP, FPLP, CMR, FPLR, can be substituted.
• Maximum voltage for multi-conductor NPFLA cables. -✓✓150 volts
• Voltage rating of PFLA cables. -✓✓Not less than 300 volts
• Shall the Voltage Rating be Marked on PFLA Cables? -✓✓No, the voltage rating is
not marked on PFLA cables.
• What is a Rate Compensation Detector? -✓✓A device that responds when the
temperature reaches a set level, regardless of the rate of temperature increase.
• What is a Smoke Detector? -✓✓A device that detects both visible and invisible
combustion particles.
• Which Detector is Best at Detecting Invisible Particles? -✓✓Ionization detectors are
best at detecting invisible particles.
• Which Detector is Better at Detecting Visible Smoke Particles? -✓✓Photoelectric
detectors are better at detecting visible smoke particles.
• What is a Spot Type Detector? -✓✓A device that concentrates detecting elements at
a specific location.
• What is a Digital Alarm Communicator Transmitter (DACT)? -✓✓A system component
at the protected premises that connects to initiating devices to transmit signals to a
DACR.
• What is a Digital Alarm Communicator Receiver (DACR)? -✓✓A system component
that accepts and displays signals from a DACT over the public phone network.
• What is an Alarm Signal? -✓✓A signal triggered by manual or automatic detection of
an alarm condition.
