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200+ Free Journeyman Electrician Practice Questions

Pass your ICC National Standard Journeyman Electrician Exam exam on the first try — instant access, no signup required.

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According to NEC 240.4, what protection is required for conductors?

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2026 Statistics

Key Facts: Journeyman Electrician Exam

80

Exam Questions

ICC National Contractor/Trades Bulletin

4 hours

Time Limit

ICC National Contractor/Trades Bulletin

$120

ICC Exam Fee

ICC National Contractor/Trades Bulletin

70%

Typical Contractor/Trades Passing Score

ICC passing score guidance

2023 NEC

R17 Code Edition

ICC current national contractor exam list

26%

Largest Domain: Wiring Methods

ICC National Contractor/Trades Bulletin

The current ICC R17/T17/G17 Journeyman Electrician exams have 80 multiple-choice questions, a 4-hour open-book time limit, a $120 Pearson VUE exam fee, and generally require 70% correct for contractor/trades passing. ICC is not a licensing agency, so candidates must verify jurisdiction-specific exam code, NEC edition, apprenticeship/work-hour eligibility, allowed references, and post-exam licensing requirements before registering.

Sample Journeyman Electrician Practice Questions

Try these sample questions to test your Journeyman Electrician exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1According to the NEC, what is the definition of a "service point"?
A.The point where the utility service conductors connect to the building wiring
B.The point of connection between the facilities of the serving utility and the premises wiring
C.The location of the main service disconnect
D.The point where the grounding electrode conductor connects to the service
Explanation: NEC Article 100 defines the service point as "the point of connection between the facilities of the serving utility and the premises wiring." This is typically where the utility's responsibility ends and the owner's responsibility begins.
2What does the NEC define as an "accessible" wiring method?
A.Wiring that can be accessed without damaging the building structure
B.Capable of being removed or exposed without damaging the building structure or finish
C.Wiring that is visible and within reach
D.Any wiring installed in accessible attics or crawl spaces
Explanation: NEC Article 100 defines "accessible" as "capable of being removed or exposed without damaging the building structure or finish." This is different from "readily accessible," which means capable of being reached quickly without climbing or removing obstacles.
3What is the definition of a "continuous load" according to the NEC?
A.A load that operates for 8 hours or more
B.A load where the maximum current is expected to continue for 3 hours or more
C.Any load that operates continuously without interruption
D.A load that operates at maximum capacity for the full day
Explanation: NEC Article 100 defines a continuous load as "a load where the maximum current is expected to continue for 3 hours or more." This is important for sizing conductors and overcurrent protection - continuous loads must be calculated at 125% of their rating per Article 210.20(A).
4According to NEC Article 100, what is a "feeder"?
A.The circuit conductors between the service equipment and the branch-circuit overcurrent device
B.All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device
C.Any conductor that supplies power to a panelboard
D.The conductors between the meter and the main breaker
Explanation: NEC Article 100 defines a feeder as "all circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device." This includes conductors to subpanels and distribution equipment.
5What is the NEC definition of "ampacity"?
A.The maximum voltage a conductor can handle
B.The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating
C.The current-carrying capacity of a panelboard
D.The rating of an overcurrent protection device
Explanation: NEC Article 100 defines ampacity as "the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating." Ampacity is affected by ambient temperature, number of conductors in a raceway, and conductor insulation rating.
6According to the NEC, what is a "separately derived system"?
A.A system with its own dedicated service
B.An electrical source that has no direct connection to circuit conductors of any other electrical source
C.A system that derives power from a backup generator
D.Any system with an isolated ground
Explanation: NEC Article 100 defines a separately derived system as "an electrical source that has no direct connection to circuit conductors of any other electrical source other than those established by grounding and bonding connections." Examples include generators, transformers, and converters with no direct electrical connection to supply conductors originating in another system.
7What is the definition of "bonding jumper" in the NEC?
A.A wire used to connect two circuit conductors
B.A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected
C.The conductor that connects the grounding electrode to the service
D.Any wire that grounds equipment
Explanation: NEC Article 100 defines a bonding jumper as "a reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected." This includes main bonding jumpers, equipment bonding jumpers, and supply-side bonding jumpers.
8According to NEC Article 100, what is "dwelling unit"?
A.Any building used for residential purposes
B.A single unit providing complete and independent living facilities for one or more persons
C.Any house, apartment, or condominium
D.A structure with sleeping and cooking facilities
Explanation: NEC Article 100 defines a dwelling unit as "a single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation." This definition is important for applying specific requirements in Articles 210, 220, and others.
9What does the NEC define as "working space"?
A.Any space where electrical work is being performed
B.The clear area in front of electrical equipment required for safe operation and maintenance
C.Space designated for storing electrical tools
D.The area around a construction site where electrical work occurs
Explanation: NEC Article 100 defines working space as the clear area in front of electrical equipment required for safe operation and maintenance. Specific dimensions are required by Article 110.26 based on the voltage and conditions of the installation.
10According to the NEC, what is a "ground fault"?
A.An intentional connection to earth
B.An unintentional, electrically conducting connection between an ungrounded conductor and normally non-current-carrying conductors or surfaces
C.Any fault in the grounding system
D.A short circuit between grounded conductors
Explanation: NEC Article 100 defines a ground fault as "an unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally non-current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth." Ground fault protection is required in many applications to prevent fire and shock hazards.

About the Journeyman Electrician Exam

The ICC National Standard Journeyman Electrician exams are open-book contractor/trades exams used by some licensing jurisdictions to evaluate NEC-centered electrical competency. R17 is based on the 2023 NEC, T17 on the 2020 NEC, and G17 on the 2017 NEC, while state and local authorities decide which exam, references, work hours, and license requirements apply.

Questions

80 scored questions

Time Limit

4 hours

Passing Score

Generally 70% for ICC contractor/trades exams; verify jurisdiction rules

Exam Fee

$120 ICC Pearson VUE exam fee (International Code Council (ICC) / Pearson VUE; licensing authority controls license issuance)

Journeyman Electrician Exam Content Outline

6%

General Knowledge

Electrical theory, general load calculations, code definitions and terms, plan reading, and reference navigation.

11%

Services and Service Equipment

Service and fault current concepts, service load calculations, service equipment, service conductors, transformers, grounding, bonding, and temporary services.

4%

Feeders

Feeder load calculations, conductor sizing, and equipment grounding.

19%

Branch Circuits and Conductors

Branch-circuit calculations, overcurrent protection, conductors, required outlets, GFCI/AFCI protection, and equipment grounding.

26%

Wiring Methods and Materials

Raceway installations, underground wiring methods, boxes and enclosures, cabinets, panelboards, switchboards, clearances, guarding, flexible cords, and cables.

13%

Equipment and Devices

Luminaires, receptacles, switches, appliances, utilization equipment, and heating/cooling equipment.

4%

Control Devices

Switches, disconnects, controllers, and control-circuit application logic.

6%

Motors and Generators

Motor and generator installation, conductor sizing, overcurrent protection, controllers, disconnecting means, and grounding/bonding concerns.

11%

Special Occupancies, Equipment, and Conditions

Special occupancies, pools and similar installations, mobile home/RV parks, data processing equipment, miscellaneous special equipment, emergency systems, signaling, and fire alarms.

How to Pass the Journeyman Electrician Exam

What You Need to Know

  • Passing score: Generally 70% for ICC contractor/trades exams; verify jurisdiction rules
  • Exam length: 80 questions
  • Time limit: 4 hours
  • Exam fee: $120 ICC Pearson VUE exam fee

Keys to Passing

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

Journeyman Electrician Study Tips from Top Performers

1Confirm the exact exam code and NEC edition before buying references or taking practice exams.
2Train open-book navigation under time pressure; the ICC bulletin warns candidates will not have time to look up every answer.
3Prioritize Wiring Methods and Materials, Branch Circuits and Conductors, Services, Equipment/Devices, and Special Occupancies because they carry the most weight.
4Build repeatable calculation setups for load calculations, conductor ampacity, adjustment/correction, box fill, voltage drop, motors, and grounding/bonding.
5Use an error log organized by ICC domain, NEC article/table, mistake type, and next drill.

Frequently Asked Questions

Is there one national journeyman electrician license exam?

No. ICC offers national contractor/trades journeyman electrician exams such as R17, T17, and G17, but ICC is not a licensing agency. State, city, county, or local licensing authorities decide which exam and which additional work-hour, application, and license requirements apply.

How many questions are on the ICC Journeyman Electrician exam?

The opened ICC national contractor/trades bulletin lists R17, T17, and G17 Journeyman Electrician as 80 multiple-choice questions with a 4-hour open-book time limit.

What NEC edition is used on the journeyman electrician exam?

The opened ICC national exam list shows R17-N based on the 2023 NEC, T17-N based on the 2020 NEC, and G17-N based on the 2017 NEC. A jurisdiction can require a specific exam code or use a different state/local exam, so candidates must verify before studying from a code book.

What score do I need to pass the ICC Journeyman Electrician exam?

ICC guidance says most contractor/trades exams require at least 70% correct to pass. Candidates should still read the relevant bulletin or contact the licensing agency because a jurisdiction can set its own requirement.

Is the journeyman electrician exam open book?

The ICC R17/T17/G17 national journeyman electrician exams are listed as open book. ICC rules limit references and testing materials, so candidates should use the current exam catalog/bulletin and Pearson VUE or PRONTO rules before test day.

Can I use a calculator on the ICC contractor/trades exam?

ICC FAQ guidance allows a battery-operated, nonprogrammable calculator for computer-based exams if it cannot store exam information and has no ribbon or paper printing. PRONTO guidance allows a basic four-function nonprogrammable calculator.

What are the largest journeyman electrician exam domains?

For ICC R17/T17/G17, Wiring Methods and Materials is the largest domain at 26%, followed by Branch Circuits and Conductors at 19%, Equipment and Devices at 13%, Services and Service Equipment at 11%, and Special Occupancies, Equipment, and Conditions at 11%.