Wisconsin Journeyman Electrician Exam
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary purpose of the National Electrical Code
(NEC)?
A. To guarantee perfect electrical installations
B. To provide minimum safety standards for electrical installations
C. To replace local building codes
D. To establish electrical product prices
Rationale: The NEC establishes the minimum requirements necessary
to safeguard people and property from electrical hazards. It is not
intended to guarantee flawless installations or replace local
regulations that may be more stringent.
2. According to the NEC, electrical equipment shall be installed and
used in accordance with:
,A. Customer preference
B. Utility company recommendations only
C. Listing and labeling instructions
D. Manufacturer advertising materials
Rationale: Listed and labeled equipment must be installed according
to the manufacturer's instructions and its listing. This ensures the
equipment performs safely under intended operating conditions.
3. A continuous load is defined as a load expected to operate for:
A. 30 minutes or more
B. 1 hour or more
C. 3 hours or more
D. 8 hours or more
Rationale: The NEC defines a continuous load as one expected to
continue for three hours or longer. This affects conductor sizing,
overcurrent protection, and equipment ratings.
4. Branch-circuit conductors supplying continuous loads must
generally be sized to not less than:
A. 100% of the load
,B. 125% of the continuous load
C. 150% of the load
D. 175% of the load
Rationale: Continuous loads require conductors to have an ampacity
of at least 125% of the continuous load to prevent overheating during
prolonged operation.
5. Which NEC chapter covers wiring methods and materials?
A. Chapter 1
B. Chapter 2
C. Chapter 3
D. Chapter 5
Rationale: NEC Chapter 3 contains requirements for wiring methods,
raceways, cable assemblies, boxes, fittings, and conductors used in
electrical installations.
6. The grounded conductor is commonly identified by which color?
A. Green
B. Red
C. White or gray
, D. Blue
Rationale: The grounded (neutral) conductor is identified by white or
gray insulation or approved marking methods. Green is reserved for
equipment grounding conductors.
7. Which conductor is permitted to be bare?
A. Ungrounded conductor
B. Equipment grounding conductor
C. Neutral conductor
D. Traveler conductor
Rationale: Equipment grounding conductors may be bare, covered, or
insulated. Bare grounding conductors are commonly used in NM cable
assemblies.
8. Electrical equipment intended to interrupt fault current must have
an interrupting rating:
A. Lower than available fault current
B. Equal to or greater than available fault current
C. Equal to circuit voltage only
D. Equal to conductor ampacity
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 guarantee perfect electrical installations
B. To provide minimum safety standards for electrical installations
C. To replace local building codes
D. To establish electrical product prices
Rationale: The NEC establishes the minimum requirements necessary
to safeguard people and property from electrical hazards. It is not
intended to guarantee flawless installations or replace local
regulations that may be more stringent.
2. According to the NEC, electrical equipment shall be installed and
used in accordance with:
,A. Customer preference
B. Utility company recommendations only
C. Listing and labeling instructions
D. Manufacturer advertising materials
Rationale: Listed and labeled equipment must be installed according
to the manufacturer's instructions and its listing. This ensures the
equipment performs safely under intended operating conditions.
3. A continuous load is defined as a load expected to operate for:
A. 30 minutes or more
B. 1 hour or more
C. 3 hours or more
D. 8 hours or more
Rationale: The NEC defines a continuous load as one expected to
continue for three hours or longer. This affects conductor sizing,
overcurrent protection, and equipment ratings.
4. Branch-circuit conductors supplying continuous loads must
generally be sized to not less than:
A. 100% of the load
,B. 125% of the continuous load
C. 150% of the load
D. 175% of the load
Rationale: Continuous loads require conductors to have an ampacity
of at least 125% of the continuous load to prevent overheating during
prolonged operation.
5. Which NEC chapter covers wiring methods and materials?
A. Chapter 1
B. Chapter 2
C. Chapter 3
D. Chapter 5
Rationale: NEC Chapter 3 contains requirements for wiring methods,
raceways, cable assemblies, boxes, fittings, and conductors used in
electrical installations.
6. The grounded conductor is commonly identified by which color?
A. Green
B. Red
C. White or gray
, D. Blue
Rationale: The grounded (neutral) conductor is identified by white or
gray insulation or approved marking methods. Green is reserved for
equipment grounding conductors.
7. Which conductor is permitted to be bare?
A. Ungrounded conductor
B. Equipment grounding conductor
C. Neutral conductor
D. Traveler conductor
Rationale: Equipment grounding conductors may be bare, covered, or
insulated. Bare grounding conductors are commonly used in NM cable
assemblies.
8. Electrical equipment intended to interrupt fault current must have
an interrupting rating:
A. Lower than available fault current
B. Equal to or greater than available fault current
C. Equal to circuit voltage only
D. Equal to conductor ampacity
