100+ Free NASCLA Journeyman Electrician Practice Questions

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According to NEC Article 90, what is the primary purpose of the National Electrical Code?

To provide design specifications for electrical systems

The practical safeguarding of persons and property from hazards arising from the use of electricity

To establish efficient methods of construction

To set energy efficiency standards for electrical equipment

to track

2026 Statistics

Key Facts: NASCLA Journeyman Electrician Exam

100

Total Questions

NASCLA

70%

Passing Score

70 of 100 correct

$65

Application Fee

NED system

Open Book

Exam Format

NEC + approved references

Member States Accept

Current NASCLA list

100-150 hrs

Recommended Study

Industry estimate

The NASCLA Journeyman Electrician exam has 100 questions and requires 70 correct (70%) to pass. The $65 application fee is submitted via the NASCLA National Examination Database (NED). The exam is open-book using the NEC and NASCLA-approved references. NASCLA-recognized states currently include Alabama, Arkansas, Louisiana, Mississippi, North Carolina, Oregon, Tennessee, Utah, and Virginia (verify the current list at nascla.org).

Sample NASCLA Journeyman Electrician Practice Questions

Try these sample questions to test your NASCLA Journeyman Electrician exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to NEC Article 90, what is the primary purpose of the National Electrical Code?

A.To provide design specifications for electrical systems

B.The practical safeguarding of persons and property from hazards arising from the use of electricity

C.To establish efficient methods of construction

D.To set energy efficiency standards for electrical equipment

Explanation: NEC 90.1(A) states the purpose of the Code is the practical safeguarding of persons and property from hazards arising from the use of electricity. The NEC is a minimum-safety standard, not a design specification or instruction manual.

2Per NEC 90.4, who has the responsibility for interpreting the rules, deciding on the approval of equipment and materials, and granting special permission?

A.The licensed electrical contractor

B.The authority having jurisdiction (AHJ)

C.The National Fire Protection Association (NFPA)

D.The state electrical licensing board

Explanation: NEC 90.4 places the authority for interpretation, equipment approval, and granting special permission with the authority having jurisdiction (AHJ). The AHJ is typically the local electrical inspector or building official.

3Per NEC Article 100, what is the definition of 'qualified person'?

A.Anyone employed by a licensed electrical contractor

B.One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved

C.A licensed journeyman or master electrician

D.Any person over 18 years of age with electrical training

Explanation: NEC Article 100 defines a qualified person as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved. This definition is critical because many Code rules permit work or access only by qualified persons.

4Per NEC Article 100, the difference between 'accessible' and 'readily accessible' is best described as:

A.There is no functional difference between the two terms

B.Readily accessible requires no tools, ladders, or removal of obstacles to reach the equipment

C.Accessible refers only to wiring; readily accessible refers only to equipment

D.Readily accessible means visible from floor level

Explanation: Per Article 100, 'readily accessible' means capable of being reached quickly without those to whom ready access is requisite to climb over or remove obstacles or resort to portable ladders. 'Accessible' (as applied to equipment) only requires that it be capable of being reached without disturbing the building structure.

5Per NEC 110.26(A)(1), what is the minimum depth of the working space in front of 480Y/277V switchgear with exposed live parts on one side and a concrete wall on the other (Condition 2)?

A.3 feet (914 mm)

B.3 1/2 feet (1.07 m)

C.4 feet (1.22 m)

D.5 feet (1.52 m)

Explanation: Per NEC Table 110.26(A)(1), for nominal voltages 151V to 600V to ground under Condition 2 (exposed live parts on one side, grounded surface on the other), the minimum working space depth is 3 1/2 feet (1.07 m).

6Per NEC 110.26(C)(2), equipment rated 1200 amperes or more and over 6 ft (1.8 m) wide that contains overcurrent devices, switching devices, or control devices requires:

A.One entrance not less than 24 in. wide and 6 1/2 ft high

B.One entrance to and egress from the working space

C.Two entrances to and egress from the working space, located at each end

D.Emergency lighting only

Explanation: NEC 110.26(C)(2) requires that for large equipment (1200 A or more, over 6 ft wide), there shall be one entrance to and egress from the required working space not less than 24 in. wide and 6 1/2 ft high at each end of the working space, providing two means of egress for personnel safety.

7Per NEC 110.14(C)(1), conductors with temperature ratings higher than 60°C are permitted to be used for ampacity adjustment, correction, or both, provided the corrected and adjusted ampacity does not exceed:

A.The 60°C ampacity for circuits rated 100 A or less

B.The 75°C ampacity for circuits rated 100 A or less

C.The 90°C ampacity for any circuit

D.The lowest temperature rating of any connected termination, conductor, or device

Explanation: NEC 110.14(C) requires that the temperature rating associated with the ampacity of a conductor be selected and coordinated so as not to exceed the lowest temperature rating of any connected termination, conductor, or device. Higher-temperature-rated conductors may be used for derating, but final ampacity is limited by the weakest link.

8Per NEC 110.16, an arc-flash hazard warning label is required on:

A.Only equipment rated 600V or more

B.Switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers in other than dwelling units that are likely to require examination, adjustment, servicing, or maintenance while energized

C.All electrical equipment in commercial buildings

D.Only equipment installed after January 1, 2020

Explanation: NEC 110.16 requires arc-flash warning labels on switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers in non-dwelling occupancies likely to be examined, adjusted, serviced, or maintained while energized. The label warns qualified persons of potential arc-flash hazards.

9According to Ohm's Law, what is the current through a 24-ohm resistor connected to a 120V source?

A.0.2 A

B.5 A

C.2.88 A

D.2880 A

Explanation: Ohm's Law: I = V/R = 120 V / 24 Ω = 5 A. Knowing the three forms of Ohm's Law (V=IR, I=V/R, R=V/I) is foundational for the NASCLA Theory section.

10What is the power dissipated by a 10-ohm resistor carrying 6 amperes?

A.60 W

B.360 W

C.600 W

D.3600 W

Explanation: Power formula: P = I²R = (6)² × 10 = 36 × 10 = 360 W. This is one of the three power forms (P=VI, P=I²R, P=V²/R) commonly tested.

About the NASCLA Journeyman Electrician Exam

The NASCLA Accredited Examination for Journeyman Electricians is an open-book, 100-question NEC-based exam recognized by participating NASCLA member states. Passing produces a single score report that can be submitted to multiple state licensing boards, reducing the need to retest for cross-state work.

Questions

100 scored questions

Time Limit

Open-book; 5 hours typical at NED test centers

Passing Score

70%

Exam Fee

$65 (NASCLA (National Association of State Contractors Licensing Agencies))

NASCLA Journeyman Electrician Exam Content Outline

General Code Requirements

NEC Article 90, definitions, working clearances, AHJ duties, listing rules

12%

Project Design & Management

Service/feeder load calcs (Article 220), motor sizing, optional dwelling methods

10%

Safety

OSHA 1910/1926 electrical safety, NFPA 70E approach boundaries, lockout/tagout, PPE categories

14%

Electrical Theory & Principles

Ohm's Law, single/three-phase power, voltage drop, motor full-load currents

16%

Wiring & Protection

NEC 200-285: identification, branch circuits, services, OCPDs, grounding/bonding

18%

Wiring Methods & Materials

NEC 300-399: ampacity, box fill, conduit fill, raceway and cable methods

Special Occupancies

Hazardous (classified) locations, healthcare, fuel dispensing, pools

10%

Special Equipment & Conditions

Signs, elevators, EV charging, PV, emergency and standby systems

Communication Systems

NEC Article 800: communications cables, plenum installations, bonding

How to Pass the NASCLA Journeyman Electrician Exam

What You Need to Know

Passing score: 70%
Exam length: 100 questions
Time limit: Open-book; 5 hours typical at NED test centers
Exam fee: $65

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NASCLA Journeyman Electrician Study Tips from Top Performers

1Buy the current NEC and tab Articles 210, 220, 240, 250, 310, 314, and Chapter 9 — these tables are on every exam

2Memorize the three-phase power formula: P = √3 × V × I × PF (1.732 ≈ √3)

3Memorize voltage-drop K-values: K = 12.9 for copper, K = 21.2 for aluminum at 75°C

4Practice motor sizing: 125% of FLC for branch-circuit conductors (430.22), 250% of FLC for inverse-time breakers (Table 430.52)

5Drill Table 250.66 (GEC sizing) and Table 250.122 (EGC sizing) — they are different and frequently confused

6Review NFPA 70E PPE categories (1-4) and approach boundaries by voltage class

7Take open-book practice tests to build code-lookup speed — every question is winnable but requires fast navigation

Frequently Asked Questions

What is the NASCLA Journeyman Electrician exam?

It is an accredited journeyman-level electrical exam administered through the NASCLA National Examination Database (NED). The 100-question, open-book exam produces a single score report that participating member states accept toward licensure, reducing the need to retake separate state exams when working across state lines.

How many questions are on the exam and what is the passing score?

The NASCLA Journeyman Electrician exam contains 100 multiple-choice questions. You must answer at least 70 correctly to pass — the passing score is 70%.

How much does the NASCLA exam cost?

The application fee is $65 submitted through the NED system. Test centers may charge an additional seat fee, and candidates should also budget for the NASCLA-approved reference book bundle (NEC, Ugly's, NFPA 70E, OSHA materials) which typically runs $300-$500.

Is the NASCLA Journeyman Electrician exam open book?

Yes. The exam is open-book using the National Electrical Code (NEC) and other NASCLA-approved references. References must be in printed, bound form (no loose papers, no removable tabs). Most candidates spend significant prep time tabbing the NEC for fast lookups.

Which states accept the NASCLA Journeyman Electrician exam?

Participating member states have historically included Alabama, Arkansas, Louisiana, Mississippi, North Carolina, Oregon, Tennessee, Utah, and Virginia. The current accepting-states list changes — always verify on nascla.org before applying for licensure in a specific state.

Which NEC edition does the NASCLA exam use?

NASCLA aligns its journeyman electrician exam to the current NEC edition referenced in its Examination Information Bulletin. Most recent administrations have used the 2023 NEC. Always confirm the exact edition on the bulletin posted on nascla.org before purchasing references.

How does the NASCLA exam differ from a state-only journeyman exam?

A state-only exam is recognized only in that state. The NASCLA exam was created so journeyman electricians who pass once can submit the same score to multiple member states, supporting reciprocity and cross-state work. Member states still set their own apprenticeship and licensing requirements.