Georgia Low-Voltage Contractor
Examination Practice Exam 2026 | 100
Questions & Answers with Detailed
Rationales | Complete Exam Prep &
Study Guide
1. What is the primary purpose of a low-voltage electrical system?
A. To distribute utility power throughout a building
B. To provide communication, signaling, control, or limited-energy functions
C. To replace the building's service equipment
D. To increase the available utility voltage
Answer: B. To provide communication, signaling, control, or limited-energy
functions
Rationale: Low-voltage systems are generally used for communications,
signaling, control, security, fire alarm, data, and similar limited-energy
applications rather than ordinary branch-circuit power distribution.
2. Which organization publishes the National Electrical Code (NEC)?
A. OSHA
B. ANSI
,C. NFPA
D. IEEE
Answer: C. NFPA
Rationale: The National Fire Protection Association publishes NFPA 70, the
National Electrical Code.
3. What is the main purpose of the NEC?
A. To establish electrical safety requirements
B. To determine contractor profit margins
C. To establish local tax rates
D. To regulate employee wages
Answer: A. To establish electrical safety requirements
Rationale: The NEC establishes requirements intended to protect people and
property from hazards arising from electrical installations.
4. Which NEC article primarily addresses communications circuits?
A. Article 110
B. Article 250
C. Article 725
D. Article 800
Answer: D. Article 800
Rationale: NEC Article 800 covers communications circuits and systems,
including certain communications wiring methods and installation
requirements.
5. Which NEC article covers Class 1, Class 2, and Class 3 remote-control,
signaling, and power-limited circuits?
A. Article 725
B. Article 760
,C. Article 770
D. Article 810
Answer: A. Article 725
Rationale: Article 725 establishes requirements for Class 1, Class 2, and Class 3
circuits and systems.
6. What is the principal difference between power-limited and ordinary power
circuits?
A. Power-limited circuits are subject to limitations on voltage and/or power
B. Power-limited circuits always use AC
C. Power-limited circuits never require protection
D. Power-limited circuits cannot use copper conductors
Answer: A. Power-limited circuits are subject to limitations on voltage and/or
power
Rationale: Power-limited classifications restrict the amount of voltage, current,
or power available to the circuit, depending on the system classification.
7. What is the purpose of a listed electrical product?
A. To indicate that the product has been evaluated by an approved testing
organization or authority
B. To guarantee that the product will never fail
C. To indicate the lowest-priced product
D. To eliminate installation requirements
Answer: A. To indicate that the product has been evaluated by an approved
testing organization or authority
Rationale: Listing indicates that a product has been evaluated according to
applicable standards and is acceptable for identified uses.
8. What does the term “grounding” generally refer to?
, A. Connecting equipment to a communications network
B. Connecting an electrical system or equipment to earth or a grounding
reference
C. Increasing circuit voltage
D. Reducing conductor size
Answer: B. Connecting an electrical system or equipment to earth or a
grounding reference
Rationale: Grounding establishes a connection to earth or another grounding
reference as required by the electrical system.
9. What is the purpose of bonding?
A. To establish electrical continuity between conductive parts
B. To increase resistance
C. To eliminate circuit protection
D. To increase conductor temperature
Answer: A. To establish electrical continuity between conductive parts
Rationale: Bonding connects conductive parts together so they remain at
substantially the same electrical potential and can provide an effective fault-
current path where required.
10.Which device is commonly used to protect low-voltage equipment from
excessive current?
A. Fuse or circuit breaker
B. Antenna
C. Patch panel
D. Terminal block only
Answer: A. Fuse or circuit breaker
Rationale: Overcurrent protective devices limit excessive current and help
protect conductors and equipment from damage.
Examination Practice Exam 2026 | 100
Questions & Answers with Detailed
Rationales | Complete Exam Prep &
Study Guide
1. What is the primary purpose of a low-voltage electrical system?
A. To distribute utility power throughout a building
B. To provide communication, signaling, control, or limited-energy functions
C. To replace the building's service equipment
D. To increase the available utility voltage
Answer: B. To provide communication, signaling, control, or limited-energy
functions
Rationale: Low-voltage systems are generally used for communications,
signaling, control, security, fire alarm, data, and similar limited-energy
applications rather than ordinary branch-circuit power distribution.
2. Which organization publishes the National Electrical Code (NEC)?
A. OSHA
B. ANSI
,C. NFPA
D. IEEE
Answer: C. NFPA
Rationale: The National Fire Protection Association publishes NFPA 70, the
National Electrical Code.
3. What is the main purpose of the NEC?
A. To establish electrical safety requirements
B. To determine contractor profit margins
C. To establish local tax rates
D. To regulate employee wages
Answer: A. To establish electrical safety requirements
Rationale: The NEC establishes requirements intended to protect people and
property from hazards arising from electrical installations.
4. Which NEC article primarily addresses communications circuits?
A. Article 110
B. Article 250
C. Article 725
D. Article 800
Answer: D. Article 800
Rationale: NEC Article 800 covers communications circuits and systems,
including certain communications wiring methods and installation
requirements.
5. Which NEC article covers Class 1, Class 2, and Class 3 remote-control,
signaling, and power-limited circuits?
A. Article 725
B. Article 760
,C. Article 770
D. Article 810
Answer: A. Article 725
Rationale: Article 725 establishes requirements for Class 1, Class 2, and Class 3
circuits and systems.
6. What is the principal difference between power-limited and ordinary power
circuits?
A. Power-limited circuits are subject to limitations on voltage and/or power
B. Power-limited circuits always use AC
C. Power-limited circuits never require protection
D. Power-limited circuits cannot use copper conductors
Answer: A. Power-limited circuits are subject to limitations on voltage and/or
power
Rationale: Power-limited classifications restrict the amount of voltage, current,
or power available to the circuit, depending on the system classification.
7. What is the purpose of a listed electrical product?
A. To indicate that the product has been evaluated by an approved testing
organization or authority
B. To guarantee that the product will never fail
C. To indicate the lowest-priced product
D. To eliminate installation requirements
Answer: A. To indicate that the product has been evaluated by an approved
testing organization or authority
Rationale: Listing indicates that a product has been evaluated according to
applicable standards and is acceptable for identified uses.
8. What does the term “grounding” generally refer to?
, A. Connecting equipment to a communications network
B. Connecting an electrical system or equipment to earth or a grounding
reference
C. Increasing circuit voltage
D. Reducing conductor size
Answer: B. Connecting an electrical system or equipment to earth or a
grounding reference
Rationale: Grounding establishes a connection to earth or another grounding
reference as required by the electrical system.
9. What is the purpose of bonding?
A. To establish electrical continuity between conductive parts
B. To increase resistance
C. To eliminate circuit protection
D. To increase conductor temperature
Answer: A. To establish electrical continuity between conductive parts
Rationale: Bonding connects conductive parts together so they remain at
substantially the same electrical potential and can provide an effective fault-
current path where required.
10.Which device is commonly used to protect low-voltage equipment from
excessive current?
A. Fuse or circuit breaker
B. Antenna
C. Patch panel
D. Terminal block only
Answer: A. Fuse or circuit breaker
Rationale: Overcurrent protective devices limit excessive current and help
protect conductors and equipment from damage.
