TFM 12 FIRE ALARM TECHNICAL
CERTIFICATION EVALUATION EXAM 2026
QUESTIONS GRADED A+
◉ What does P.L.F.A stand for? Answer: Power Limited Fire Alarm
◉ What does N.P.L.F.A stand for? Answer: Non-Power Limited Fire
Alarm
◉ What is the difference between P.F.L.A and N.P.F.L.A? Answer: 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?
Answer: ONLY solid stranded copper is permitted.
◉ What does A.W.G stand for? Answer: American Wire Gauge
◉ What size conductors are permitted? Answer: Size 18 A.W.G and 16
A.W.G are permitted, provided they do not exceed certain capacities.
,◉ What is used to protect transformers or other devices supplied from
power-supply conductors? Answer: An over-current device not rated
over 20 amperes.
◉ When located within 7 feet of the floor, how shall cables be fastened?
Answer: 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? Answer: 18
◉ Conductors of 28 A.W.G shall only be permitted in which
circumstance? Answer: Spliced with a connector listed as suitable for 26
to 24 A.W.G
◉ How shall P.F.L.A conductors NOT be installed? Answer: P.F.L.A
conductors shall not be strapped, taped, or attached to the exterior of any
conduit or raceway.
◉ What is Plenum cable? Answer: Cable that can be installed in ducts,
plenums, or other spaces used for environmental air.
◉ What is a Riser cable? Answer: 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? Answer: 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?
Answer: Power Limited Fire Alarm Plenum (F.P.L.P) C.M.P can be
substituted.
◉ Why 'type' shall riser cable be? What substitutions are allowed?
Answer: Power Limited Fire Alarm Riser (F.P.L.R) C.M.P, F.P.L.P.
C.M.R can be substituted.
◉ What 'type' shall general purpose wire be? What substitutions are
permitted? Answer: Power Limited Fire Alarm (F.P.L) C.M.P, F.P.L.P,
C.M.R, F.P.L.R, C.M.G
CM can be substituted (all types)
CERTIFICATION EVALUATION EXAM 2026
QUESTIONS GRADED A+
◉ What does P.L.F.A stand for? Answer: Power Limited Fire Alarm
◉ What does N.P.L.F.A stand for? Answer: Non-Power Limited Fire
Alarm
◉ What is the difference between P.F.L.A and N.P.F.L.A? Answer: 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?
Answer: ONLY solid stranded copper is permitted.
◉ What does A.W.G stand for? Answer: American Wire Gauge
◉ What size conductors are permitted? Answer: Size 18 A.W.G and 16
A.W.G are permitted, provided they do not exceed certain capacities.
,◉ What is used to protect transformers or other devices supplied from
power-supply conductors? Answer: An over-current device not rated
over 20 amperes.
◉ When located within 7 feet of the floor, how shall cables be fastened?
Answer: 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? Answer: 18
◉ Conductors of 28 A.W.G shall only be permitted in which
circumstance? Answer: Spliced with a connector listed as suitable for 26
to 24 A.W.G
◉ How shall P.F.L.A conductors NOT be installed? Answer: P.F.L.A
conductors shall not be strapped, taped, or attached to the exterior of any
conduit or raceway.
◉ What is Plenum cable? Answer: Cable that can be installed in ducts,
plenums, or other spaces used for environmental air.
◉ What is a Riser cable? Answer: 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? Answer: 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?
Answer: Power Limited Fire Alarm Plenum (F.P.L.P) C.M.P can be
substituted.
◉ Why 'type' shall riser cable be? What substitutions are allowed?
Answer: Power Limited Fire Alarm Riser (F.P.L.R) C.M.P, F.P.L.P.
C.M.R can be substituted.
◉ What 'type' shall general purpose wire be? What substitutions are
permitted? Answer: Power Limited Fire Alarm (F.P.L) C.M.P, F.P.L.P,
C.M.R, F.P.L.R, C.M.G
CM can be substituted (all types)
