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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

ICC R17 is an 80-question, four-hour open-book examination using the 2023 NEC and Ugly’s Electrical References. The listed Pearson VUE fee is $120, and ICC generally uses 70% correct for contractor/trades exams. Confirm acceptance, passing requirements and eligibility with the licensing jurisdiction; ICC does not issue a national electrician licence.

Sample Journeyman Electrician Practice Questions

Try these sample questions to review concepts for the Journeyman Electrician exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 300+ question experience with AI tutoring.

1A utility-approved drawing labels point X as the connection between its facilities and the premises wiring. The meter is at Y and the main disconnect at Z. Which label identifies the service point?
A.Y, because every meter is the service point
B.X
C.Z, because the first disconnect defines the service point
D.Whichever point belongs to the customer
Explanation: The service point is the utility-to-premises interface. Here the approved drawing establishes X; neither the meter nor the main disconnect automatically fixes that location. Ownership and maintenance responsibilities require the applicable utility agreement.
2A raceway junction box is reached through a removable ceiling tile using a portable ladder, without damaging finish. The installation permits accessible wiring-method junctions there. A proposed disconnect at the same point must instead be readily accessible with no applicable exception. Which layout decision follows?
A.Both qualify because access without damage is the only standard
B.The box can meet its access rule while the disconnect location fails its stricter rule
C.Both fail because a portable ladder makes every wiring box inaccessible
D.Move only the box and leave the disconnect because handles need no access review
Explanation: Evaluate each component under its own access requirement. Removable-tile access without finish damage may suit the junction box, while needing a portable ladder defeats the ordinary ready-access condition assigned to this disconnect.
3A branch circuit supplies 8 A lighting at maximum current for 3.5 hours and 6 A equipment for two hours. Apply 125% to continuous current and 100% to noncontinuous current. No 100%-rated exception applies. Which offered usable capacity is the lowest that meets the calculated minimum?
A.14 A
B.16 A
C.10 A
D.17.5 A
Explanation: The 3.5-hour load is continuous under the supplied three-hour threshold. Required capacity is 8×1.25+6=16 A. Separately choose permitted conductors, protection and standard device ratings; 16 A is the calculated capacity, not a claim that a 16 A breaker is the required US standard size.
4A transformer secondary supplies a panel through conductors A. A 20 A branch-circuit breaker in that panel supplies a receptacle through conductors B. Which conductors are the feeder in this arrangement?
A.B, because a receptacle receives electrical energy
B.A, between the source and final branch-circuit breaker
C.Both A and B, because neither is a utility service drop
D.Neither, because feeders must originate at utility service equipment
Explanation: The feeder ends at the final branch-circuit overcurrent device. Its source can be service equipment, a separately derived system or another power source. The transformer-to-panel conductors are therefore the feeder; the outgoing receptacle circuit is a branch circuit.
5A branch conductor has supplied 90°C ampacity 40 A, applicable correction factor 0.80 and 75°C terminal limit 35 A. The circuit requires 34 A usable conductor capacity; all other constraints are satisfied. Should this conductor be accepted?
A.Yes, because its 40 A insulation-column value exceeds 34 A
B.No; its 32 A corrected capacity is below 34 A
C.Yes, because the 35 A terminal limit exceeds 34 A
D.No; every 90°C conductor must be treated as 60°C regardless of the marked terminals
Explanation: Compute 40×0.80=32 A, then cap at 35 A: usable capacity is 32 A. Ampacity is conditional on the installation, so this conductor fails the 34 A requirement even though each uncorrected printed value looks adequate.
6Two generator transfer arrangements are compared. In A, the neutral remains solidly connected to the utility neutral. In B, all circuit conductors, including the neutral, are switched so there is no direct circuit-conductor connection to the other source. Which is the separately derived arrangement described?
A.A, because any generator is separately derived
B.B; grounding and bonding connections are excepted
C.Both, because each generator winding is physically separate from the utility transformer
D.Neither, because their equipment grounding conductors are connected
Explanation: A separately derived system is distinguished by the absence of a direct circuit-conductor connection to another source, apart from grounding and bonding connections. Neutral switching therefore changes the grounding design analysis. This classification does not authorize installing an extra neutral-to-ground bond without the applicable system design.
7A listed bonding jumper bridges a nonconductive fitting between two metal raceway sections. What electrical function is it intended to restore?
A.Normal neutral-load current through the raceway
B.Electrical continuity for fault current
C.A guaranteed earth resistance below 25 ohms
D.Additional insulation between the raceway sections
Explanation: Bonding connects conductive parts so a fault has an effective path back to its source and protective devices can operate. The connection must have adequate continuity and fault-current capacity. A ground rod does not substitute for this raceway bond.
8A plan labels a self-contained residential unit with permanent provisions for living, sleeping, cooking and sanitation. Which missing feature would prevent another room arrangement from meeting that dwelling-unit description?
A.A separate utility meter
B.Permanent cooking provisions
C.A garage attached to the building
D.A particular number of bedrooms
Explanation: The dwelling-unit concept concerns complete independent living facilities, including permanent cooking and sanitation provisions. It is not established merely by a separate meter, a sleeping room or the building owner calling the space an apartment.
9An electrical-room plan shows a clear working space in front of a panel. A storage cabinet is later placed in that space, although the panel cover can still open. What is the correct inspection conclusion?
A.The installation is acceptable whenever the cover opens
B.The cabinet must be removed from the required working space
C.The space may be used for storage if the cabinet is nonmetallic
D.Working space is required only during initial construction
Explanation: Required working space provides safe access for operation and maintenance and is not storage space. Check the applicable depth, width, headroom and equipment-door access together. Opening the cover is only one part of that evaluation.
10After a motor branch repeatedly trips, qualified inspection with the equipment safely isolated finds a phase conductor cut against the bonded enclosure. No overload of the driven machine is found. Which repair addresses the identified fault mechanism?
A.Raise the overload setting because all tripping indicates mechanical overload
B.Repair the damaged insulation and entry protection, then verify the circuit
C.Disconnect the enclosure bond to prevent current reaching it
D.Replace the breaker with a larger rating while leaving the damaged entry
Explanation: The damaged phase insulation creates a ground fault to normally non-current-carrying metal. Correct the physical damage and its cause, preserve required bonding, and perform the appropriate checks before reenergizing. A protection change alone is not a repair.

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.

Exam sponsor: International Code Council (ICC) / Pearson VUE; licensing authority controls license issuance. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

80 questions

Time Limit

4 hours

Passing Score

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

Exam / Certification Fees

$120 ICC Pearson VUE exam fee

Exam sponsor website

Reported exam pass rate: Not published by ICC. No exam-specific first-time pass rate is published in the cited ICC bulletin. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

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.

Preparing for 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 / certification fees: $120 ICC Pearson VUE exam fee Official sources

Using Our Practice Resources

  • Work through all 300 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Journeyman Electrician: Suggested Study Strategy

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 licence?

No. ICC offers an examination used by participating jurisdictions. The state or local licensing authority decides acceptance, eligibility and licence issuance; passing R17 alone does not authorize electrical contracting.

How many questions and how much time does R17 have?

The June 30, 2026 ICC bulletin lists R17 with 80 multiple-choice questions and a four-hour open-book limit. Our 300 practice questions are a separate learning inventory.

Which NEC edition should I study?

R17 uses the 2023 NEC. T17 uses the 2020 NEC and G17 uses the 2017 NEC. Obtain the exact examination code from your licensing authority before buying books.

What passing score applies?

ICC says most contractor/trades exams require at least 70% correct. Check the relevant bulletin and licensing authority for the minimum that applies to your application; this is different from ICC certification scaled scores.

Which books and calculator may I bring?

R17 lists the 2023 NEC and Ugly’s Electrical References, any edition. ICC permits bound authorized references with pre-existing ink notes, highlighting and permanent tabs. A battery-operated nonprogrammable calculator may not store examination information or print; follow the current test-site rules.

How do I schedule or retake the exam?

Confirm the accepted exam code and any required jurisdiction approval, then schedule through Pearson VUE. The national contractor/trades bulletin requires a 10-day wait after a failed attempt.

Which R17 topics carry the most weight?

Wiring Methods and Materials is 26%, Branch Circuits and Conductors 19%, Equipment and Devices 13%, Services and Service Equipment 11%, and Special Occupancies, Equipment, and Conditions 11%. The other four domains make up the remaining 20%.