TFM 12 Texas Fire Alarm Technical Exam (Real Exam 2026)
| Complete Questions and Correct Answers | Brand New
Version!
Question 1
Does a fire hood system and a kitchen need to be monitored by the fire
alarm system?
A) No
B) Yes
C) Only the fire hood system
D) Only the kitchen
E) It depends on the local authority having jurisdiction
Correct Answer: B) Yes
Rationale: A fire hood system and a kitchen need to be monitored by
the fire alarm system.
Question 2
What does P.L.F.A stand for?
A) Power Low Fire Alarm
B) Permanent Light Fire Alarm
C) Power Limited Fire Alarm
D) Primary Line Fire Alarm
E) Protected Life Fire Alarm
Correct Answer: C) Power Limited Fire Alarm
Rationale: P.L.F.A stands for Power Limited Fire Alarm.
Question 3
What does N.P.L.F.A stand for?
A) Non-Permanent Light Fire Alarm
B) Not Power Limited Fire Alarm
C) Non-Power Limited Fire Alarm
D) Normal Power Line Fire Alarm
E) New Power Limited Fire Alarm
Correct Answer: C) Non-Power Limited Fire Alarm
Rationale: N.P.L.F.A stands for Non-Power Limited Fire Alarm.
,Question 4
What is a key difference between P.L.F.A and N.P.L.F.A?
A) A P.L.F.A can operate at up to 600v.
B) An N.P.L.F.A has its power output limited.
C) An N.P.L.F.A can operate at up to 600v, and the power output isn't limited.
D) A P.L.F.A does not have voltage limitations.
E) A P.L.F.A is typically used for industrial applications.
Correct Answer: C) an N.P.L.F.A can operate at up to 600v, and the
power output isn't limited
Rationale: The difference is that an N.P.L.F.A can operate at up to
600v, and the power output isn't limited, whereas a P.L.F.A has the
voltage and power limited by a listed power source.
Question 5
What material must N.P.L.F.A circuit conductors be made from?
A) Only aluminum stranded is permitted.
B) Only copper clad aluminum is permitted.
C) ONLY solid stranded copper is permitted.
D) Both solid and stranded copper is permitted.
E) Any conductive metal is permitted.
Correct Answer: C) ONLY solid stranded copper is permitted.
Rationale: N.P.L.F.A circuit conductors must be made from ONLY solid
stranded copper.
Question 6
What does A.W.G stand for?
A) American Wiring Guide
B) Approved Wire Gauge
C) American Wire Gauge
D) Advanced Wiring Grade
E) Automated Wire Generation
,Correct Answer: C) American Wire Gauge
Rationale: A.W.G stands for American Wire Gauge.
Question 7
What size conductors are permitted for Power Limited Fire Alarm (P.L.F.A)
circuits, provided they do not exceed certain capacities?
A) Size 20 A.W.G and 22 A.W.G.
B) Size 18 A.W.G and 16 A.W.G.
C) Size 14 A.W.G and 12 A.W.G.
D) Size 10 A.W.G and 8 A.W.G.
E) Only Size 18 A.W.G.
Correct Answer: B) Size 18 A.W.G and 16 A.W.G are permitted,
provided they do not exceed certain capacities.
Rationale: Size 18 A.W.G and 16 A.W.G conductors are permitted,
provided they do not exceed certain capacities.
Question 8
What is used to protect transformers or other devices supplied from power-
supply conductors?
A) A fuse not rated over 10 amperes.
B) An over-current device not rated over 20 amperes.
C) A circuit breaker rated over 30 amperes.
D) A surge protector.
E) A grounding wire.
Correct Answer: B) An over-current device not rated over 20 amperes.
Rationale: An over-current device not rated over 20 amperes is used
to protect transformers or other devices supplied from power-
supply conductors.
Question 9
When located within 7 feet of the floor, how shall cables be fastened?
A) Loosely tied at intervals of 3 feet.
B) Secured with cable ties every 24 inches.
, C) Cables shall be fastened in an approved manner at intervals of not more
than 18 inches.
D) Taped to the wall.
E) Left unsupported for flexibility.
Correct Answer: C) Cables shall be fastened in an approved manner at
intervals of not more than 18 inches.
Rationale: When located within 7 feet of the floor, cables shall be
fastened in an approved manner at intervals of not more than 18
inches.
Question 10
Single conductors in a Power Limited Fire Alarm (P.L.F.A) system shall not be
smaller than:
A) 22 A.W.G.
B) 20 A.W.G.
C) 18 A.W.G.
D) 16 A.W.G.
E) 14 A.W.G.
Correct Answer: C) 18 A.W.G
Rationale: Single conductors shall not be smaller than 18 A.W.G.
Question 11
Conductors of 28 A.W.G shall only be permitted in which circumstance?
A) For power supply to transformers.
B) As part of a direct burial installation.
C) Spliced with a connector listed as suitable for 26 to 24 A.W.G.
D) In vertical riser runs only.
E) When used as part of a low voltage lighting system.
Correct Answer: C) Spliced with a connector listed as suitable for 26 to
24 A.W.G
Rationale: Conductors of 28 A.W.G shall only be permitted when
spliced with a connector listed as suitable for 26 to 24 A.W.G.
| Complete Questions and Correct Answers | Brand New
Version!
Question 1
Does a fire hood system and a kitchen need to be monitored by the fire
alarm system?
A) No
B) Yes
C) Only the fire hood system
D) Only the kitchen
E) It depends on the local authority having jurisdiction
Correct Answer: B) Yes
Rationale: A fire hood system and a kitchen need to be monitored by
the fire alarm system.
Question 2
What does P.L.F.A stand for?
A) Power Low Fire Alarm
B) Permanent Light Fire Alarm
C) Power Limited Fire Alarm
D) Primary Line Fire Alarm
E) Protected Life Fire Alarm
Correct Answer: C) Power Limited Fire Alarm
Rationale: P.L.F.A stands for Power Limited Fire Alarm.
Question 3
What does N.P.L.F.A stand for?
A) Non-Permanent Light Fire Alarm
B) Not Power Limited Fire Alarm
C) Non-Power Limited Fire Alarm
D) Normal Power Line Fire Alarm
E) New Power Limited Fire Alarm
Correct Answer: C) Non-Power Limited Fire Alarm
Rationale: N.P.L.F.A stands for Non-Power Limited Fire Alarm.
,Question 4
What is a key difference between P.L.F.A and N.P.L.F.A?
A) A P.L.F.A can operate at up to 600v.
B) An N.P.L.F.A has its power output limited.
C) An N.P.L.F.A can operate at up to 600v, and the power output isn't limited.
D) A P.L.F.A does not have voltage limitations.
E) A P.L.F.A is typically used for industrial applications.
Correct Answer: C) an N.P.L.F.A can operate at up to 600v, and the
power output isn't limited
Rationale: The difference is that an N.P.L.F.A can operate at up to
600v, and the power output isn't limited, whereas a P.L.F.A has the
voltage and power limited by a listed power source.
Question 5
What material must N.P.L.F.A circuit conductors be made from?
A) Only aluminum stranded is permitted.
B) Only copper clad aluminum is permitted.
C) ONLY solid stranded copper is permitted.
D) Both solid and stranded copper is permitted.
E) Any conductive metal is permitted.
Correct Answer: C) ONLY solid stranded copper is permitted.
Rationale: N.P.L.F.A circuit conductors must be made from ONLY solid
stranded copper.
Question 6
What does A.W.G stand for?
A) American Wiring Guide
B) Approved Wire Gauge
C) American Wire Gauge
D) Advanced Wiring Grade
E) Automated Wire Generation
,Correct Answer: C) American Wire Gauge
Rationale: A.W.G stands for American Wire Gauge.
Question 7
What size conductors are permitted for Power Limited Fire Alarm (P.L.F.A)
circuits, provided they do not exceed certain capacities?
A) Size 20 A.W.G and 22 A.W.G.
B) Size 18 A.W.G and 16 A.W.G.
C) Size 14 A.W.G and 12 A.W.G.
D) Size 10 A.W.G and 8 A.W.G.
E) Only Size 18 A.W.G.
Correct Answer: B) Size 18 A.W.G and 16 A.W.G are permitted,
provided they do not exceed certain capacities.
Rationale: Size 18 A.W.G and 16 A.W.G conductors are permitted,
provided they do not exceed certain capacities.
Question 8
What is used to protect transformers or other devices supplied from power-
supply conductors?
A) A fuse not rated over 10 amperes.
B) An over-current device not rated over 20 amperes.
C) A circuit breaker rated over 30 amperes.
D) A surge protector.
E) A grounding wire.
Correct Answer: B) An over-current device not rated over 20 amperes.
Rationale: An over-current device not rated over 20 amperes is used
to protect transformers or other devices supplied from power-
supply conductors.
Question 9
When located within 7 feet of the floor, how shall cables be fastened?
A) Loosely tied at intervals of 3 feet.
B) Secured with cable ties every 24 inches.
, C) Cables shall be fastened in an approved manner at intervals of not more
than 18 inches.
D) Taped to the wall.
E) Left unsupported for flexibility.
Correct Answer: C) Cables shall be fastened in an approved manner at
intervals of not more than 18 inches.
Rationale: When located within 7 feet of the floor, cables shall be
fastened in an approved manner at intervals of not more than 18
inches.
Question 10
Single conductors in a Power Limited Fire Alarm (P.L.F.A) system shall not be
smaller than:
A) 22 A.W.G.
B) 20 A.W.G.
C) 18 A.W.G.
D) 16 A.W.G.
E) 14 A.W.G.
Correct Answer: C) 18 A.W.G
Rationale: Single conductors shall not be smaller than 18 A.W.G.
Question 11
Conductors of 28 A.W.G shall only be permitted in which circumstance?
A) For power supply to transformers.
B) As part of a direct burial installation.
C) Spliced with a connector listed as suitable for 26 to 24 A.W.G.
D) In vertical riser runs only.
E) When used as part of a low voltage lighting system.
Correct Answer: C) Spliced with a connector listed as suitable for 26 to
24 A.W.G
Rationale: Conductors of 28 A.W.G shall only be permitted when
spliced with a connector listed as suitable for 26 to 24 A.W.G.
