TFM 12 FIRE ALARM TECHNICAL
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Does a fire hood system and a kitchen need to be monitored by the fire alarm system? -
ANS Yes
What does P.L.F.A stand for? - ANS Power Limited Fire Alarm
What does N.P.L.F.A stand for? - ANS Non-Power Limited Fire Alarm
What is the difference between P.F.L.A and N.P.F.L.A? - ANS an N.P.L.F.A can operate at up to
600v, and the power output isn't limited
a P.L.F.A has the voltage and power limited by a listed power source.
What material must N.P.F.L.A circuit conductors be made from? - ANS ONLY solid stranded
copper is permitted.
What does A.W.G stand for? - ANS American Wire Gauge
What size conductors are permitted? - ANS Size 18 A.W.G and 16 A.W.G are permitted,
provided they do not exceed certain capacities.
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, What is used to protect transformers or other devices supplied from power-supply conductors?
- ANS An over-current device not rated over 20 amperes.
When located within 7 feet of the floor, how shall cables be fastened? - ANS Cables shall be
fastened in an approved manner at intervals of not more than 18 inches.
Single conductors shall not be smaller than ___ A.W.G? - ANS 18
Conductors of 28 A.W.G shall only be permitted in which circumstance? - ANS Spliced with a
connector listed as suitable for 26 to 24 A.W.G
How shall P.F.L.A conductors NOT be installed? - ANS P.F.L.A conductors shall not be strapped,
taped, or attached to the exterior of any conduit or raceway.
What is Plenum cable? - ANS Cable that can be installed in ducts, plenums, or other spaces
used for environmental air.
What is a Riser cable? - ANS Cable to be used in vertical wire runs in shafts between floors.
Not to be used where Plenum cable is required.
It is capable of preventing fire from rising from floor to floor.
What is general purpose cable? - ANS Cable for general purpose fire alarm use. Not to be
used where plenum cable or riser cable is required.
It is resistant to the spread of fire.
Why 'type' shall plenum cable be? What substitutions are allowed? - ANS Power Limited Fire
Alarm Plenum (F.P.L.P) C.M.P can be substituted.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Does a fire hood system and a kitchen need to be monitored by the fire alarm system? -
ANS Yes
What does P.L.F.A stand for? - ANS Power Limited Fire Alarm
What does N.P.L.F.A stand for? - ANS Non-Power Limited Fire Alarm
What is the difference between P.F.L.A and N.P.F.L.A? - ANS an N.P.L.F.A can operate at up to
600v, and the power output isn't limited
a P.L.F.A has the voltage and power limited by a listed power source.
What material must N.P.F.L.A circuit conductors be made from? - ANS ONLY solid stranded
copper is permitted.
What does A.W.G stand for? - ANS American Wire Gauge
What size conductors are permitted? - ANS Size 18 A.W.G and 16 A.W.G are permitted,
provided they do not exceed certain capacities.
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, What is used to protect transformers or other devices supplied from power-supply conductors?
- ANS An over-current device not rated over 20 amperes.
When located within 7 feet of the floor, how shall cables be fastened? - ANS Cables shall be
fastened in an approved manner at intervals of not more than 18 inches.
Single conductors shall not be smaller than ___ A.W.G? - ANS 18
Conductors of 28 A.W.G shall only be permitted in which circumstance? - ANS Spliced with a
connector listed as suitable for 26 to 24 A.W.G
How shall P.F.L.A conductors NOT be installed? - ANS P.F.L.A conductors shall not be strapped,
taped, or attached to the exterior of any conduit or raceway.
What is Plenum cable? - ANS Cable that can be installed in ducts, plenums, or other spaces
used for environmental air.
What is a Riser cable? - ANS Cable to be used in vertical wire runs in shafts between floors.
Not to be used where Plenum cable is required.
It is capable of preventing fire from rising from floor to floor.
What is general purpose cable? - ANS Cable for general purpose fire alarm use. Not to be
used where plenum cable or riser cable is required.
It is resistant to the spread of fire.
Why 'type' shall plenum cable be? What substitutions are allowed? - ANS Power Limited Fire
Alarm Plenum (F.P.L.P) C.M.P can be substituted.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
