Limited Energy Technician State
Licensing Exam With Actual Questions
& Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. What is the maximum allowable voltage for a limited energy
system under most state codes?
A. 24 V
B. 50 V
C. 60 V
D. 120 V
Rationale: Most limited energy systems are defined as operating at 60
volts or less to reduce the risk of electric shock.
2. Which type of cable is commonly used for fire alarm systems?
A. RG-6 coaxial
B. FPL (Fire Power Limited) cable
C. NM-B (Nonmetallic sheathed cable)
D. THHN
Rationale: FPL cable is rated for power-limited circuits in fire alarm
systems and meets fire safety standards.
3. In a structured cabling system, what is the standard color for a
network backbone cable?
, A. Green
B. Blue
C. Orange
D. Yellow
Rationale: Orange is commonly used for fiber optic backbone cabling
to distinguish it from horizontal cabling.
4. What is the primary purpose of a conduit in low-voltage
installations?
A. To conduct electricity
B. To protect and route cables
C. To increase voltage
D. To ground equipment
Rationale: Conduits protect limited energy cables from physical
damage and help organize wiring.
5. Which tool is used to measure cable continuity?
A. Clamp meter
B. Voltmeter
C. Multimeter
D. Oscilloscope
Rationale: A multimeter can check continuity, resistance, and voltage,
making it essential for limited energy systems.
6. How often should fire alarm systems be tested according to NFPA
72?
A. Monthly
B. Annually
C. Weekly
D. Biannually
, Rationale: NFPA 72 requires weekly testing of certain fire alarm
functions, such as notification appliances.
7. Which grounding method is recommended for low-voltage
systems?
A. Isolated ground
B. Common grounding point
C. No grounding
D. Floating ground
Rationale: Using a common grounding point helps prevent ground
loops and ensures system reliability.
8. In CCTV installations, what type of cable is typically used for long-
distance video transmission?
A. Twisted pair
B. Coaxial cable
C. NM-B cable
D. Fiber cable
Rationale: Coaxial cable can transmit video signals over longer
distances with minimal interference compared to twisted pair.
9. Which device converts a high-voltage AC supply to low-voltage DC
for limited energy systems?
A. Rectifier
B. Transformer
C. Power supply unit
D. Inverter
Rationale: A power supply unit steps down AC voltage and converts it
to DC suitable for low-voltage equipment.
10. What is the typical operating voltage for a security access
control system?
Licensing Exam With Actual Questions
& Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. What is the maximum allowable voltage for a limited energy
system under most state codes?
A. 24 V
B. 50 V
C. 60 V
D. 120 V
Rationale: Most limited energy systems are defined as operating at 60
volts or less to reduce the risk of electric shock.
2. Which type of cable is commonly used for fire alarm systems?
A. RG-6 coaxial
B. FPL (Fire Power Limited) cable
C. NM-B (Nonmetallic sheathed cable)
D. THHN
Rationale: FPL cable is rated for power-limited circuits in fire alarm
systems and meets fire safety standards.
3. In a structured cabling system, what is the standard color for a
network backbone cable?
, A. Green
B. Blue
C. Orange
D. Yellow
Rationale: Orange is commonly used for fiber optic backbone cabling
to distinguish it from horizontal cabling.
4. What is the primary purpose of a conduit in low-voltage
installations?
A. To conduct electricity
B. To protect and route cables
C. To increase voltage
D. To ground equipment
Rationale: Conduits protect limited energy cables from physical
damage and help organize wiring.
5. Which tool is used to measure cable continuity?
A. Clamp meter
B. Voltmeter
C. Multimeter
D. Oscilloscope
Rationale: A multimeter can check continuity, resistance, and voltage,
making it essential for limited energy systems.
6. How often should fire alarm systems be tested according to NFPA
72?
A. Monthly
B. Annually
C. Weekly
D. Biannually
, Rationale: NFPA 72 requires weekly testing of certain fire alarm
functions, such as notification appliances.
7. Which grounding method is recommended for low-voltage
systems?
A. Isolated ground
B. Common grounding point
C. No grounding
D. Floating ground
Rationale: Using a common grounding point helps prevent ground
loops and ensures system reliability.
8. In CCTV installations, what type of cable is typically used for long-
distance video transmission?
A. Twisted pair
B. Coaxial cable
C. NM-B cable
D. Fiber cable
Rationale: Coaxial cable can transmit video signals over longer
distances with minimal interference compared to twisted pair.
9. Which device converts a high-voltage AC supply to low-voltage DC
for limited energy systems?
A. Rectifier
B. Transformer
C. Power supply unit
D. Inverter
Rationale: A power supply unit steps down AC voltage and converts it
to DC suitable for low-voltage equipment.
10. What is the typical operating voltage for a security access
control system?
