Alaska Journeyman Electrician Exam Questions
and Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary purpose of the National Electrical Code
(NEC)?
A. To reduce construction costs
B. To establish minimum safety standards for electrical installations
C. To maximize energy efficiency
D. To replace local building codes
Answer: B. To establish minimum safety standards for electrical
installations
Rationale: The NEC is intended to provide practical safeguarding of
persons and property from hazards arising from the use of electricity.
It establishes minimum safety requirements but does not serve as a
design specification or instruction manual.
2. Which organization publishes the National Electrical Code (NEC)?
A. OSHA
,B. IEEE
C. NFPA
D. NEMA
Answer: C. NFPA
Rationale: The National Fire Protection Association (NFPA) develops
and publishes the NEC, updating it every three years through a
consensus process involving industry experts.
3. Electrical equipment must generally be installed and used
according to:
A. Customer preference
B. Manufacturer's instructions and listing
C. Utility company recommendations only
D. Local customs
Answer: B. Manufacturer's instructions and listing
Rationale: NEC requirements mandate that listed or labeled
equipment be installed and used according to any instructions
included in the listing or labeling to ensure safe operation.
4. What does the NEC define as a continuous load?
,A. A load operating for one hour or more
B. A load operating for two hours or more
C. A load operating for three hours or more
D. A permanent load
Answer: C. A load operating for three hours or more
Rationale: A continuous load is expected to operate at maximum
current for three hours or longer. This affects conductor sizing and
overcurrent protection calculations.
5. A branch circuit supplies:
A. Utility transformers
B. Service conductors
C. Final overcurrent devices and connected loads
D. Distribution substations
Answer: C. Final overcurrent devices and connected loads
Rationale: Branch circuits originate at the final overcurrent protective
device and extend to outlets or utilization equipment.
6. Copper conductors are generally preferred over aluminum
because copper:
, A. Costs less
B. Has lower conductivity
C. Has higher conductivity and greater mechanical strength
D. Requires larger conductor sizes
Answer: C. Has higher conductivity and greater mechanical strength
Rationale: Copper offers superior conductivity, durability, flexibility,
and resistance to creep compared to aluminum, making it suitable for
many applications.
7. The grounding electrode conductor connects the electrical system
to:
A. Neutral conductor
B. Equipment grounding conductor
C. Grounding electrode system
D. Branch circuit conductor
Answer: C. Grounding electrode system
Rationale: The grounding electrode conductor connects the grounded
service conductor or equipment to the grounding electrode system,
stabilizing system voltage and facilitating fault current dissipation.
and Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary purpose of the National Electrical Code
(NEC)?
A. To reduce construction costs
B. To establish minimum safety standards for electrical installations
C. To maximize energy efficiency
D. To replace local building codes
Answer: B. To establish minimum safety standards for electrical
installations
Rationale: The NEC is intended to provide practical safeguarding of
persons and property from hazards arising from the use of electricity.
It establishes minimum safety requirements but does not serve as a
design specification or instruction manual.
2. Which organization publishes the National Electrical Code (NEC)?
A. OSHA
,B. IEEE
C. NFPA
D. NEMA
Answer: C. NFPA
Rationale: The National Fire Protection Association (NFPA) develops
and publishes the NEC, updating it every three years through a
consensus process involving industry experts.
3. Electrical equipment must generally be installed and used
according to:
A. Customer preference
B. Manufacturer's instructions and listing
C. Utility company recommendations only
D. Local customs
Answer: B. Manufacturer's instructions and listing
Rationale: NEC requirements mandate that listed or labeled
equipment be installed and used according to any instructions
included in the listing or labeling to ensure safe operation.
4. What does the NEC define as a continuous load?
,A. A load operating for one hour or more
B. A load operating for two hours or more
C. A load operating for three hours or more
D. A permanent load
Answer: C. A load operating for three hours or more
Rationale: A continuous load is expected to operate at maximum
current for three hours or longer. This affects conductor sizing and
overcurrent protection calculations.
5. A branch circuit supplies:
A. Utility transformers
B. Service conductors
C. Final overcurrent devices and connected loads
D. Distribution substations
Answer: C. Final overcurrent devices and connected loads
Rationale: Branch circuits originate at the final overcurrent protective
device and extend to outlets or utilization equipment.
6. Copper conductors are generally preferred over aluminum
because copper:
, A. Costs less
B. Has lower conductivity
C. Has higher conductivity and greater mechanical strength
D. Requires larger conductor sizes
Answer: C. Has higher conductivity and greater mechanical strength
Rationale: Copper offers superior conductivity, durability, flexibility,
and resistance to creep compared to aluminum, making it suitable for
many applications.
7. The grounding electrode conductor connects the electrical system
to:
A. Neutral conductor
B. Equipment grounding conductor
C. Grounding electrode system
D. Branch circuit conductor
Answer: C. Grounding electrode system
Rationale: The grounding electrode conductor connects the grounded
service conductor or equipment to the grounding electrode system,
stabilizing system voltage and facilitating fault current dissipation.
