Journeyman Electrician Exam Practice Test

Last Updated on March 25, 2025

Journeyman Electrician Exam Practice Test Timed 35 Questions Answers online Test. Prepare for your Journeyman Electrician exam with our comprehensive online practice test. This free test is designed to simulate the real exam experience, providing you with 35 challenging questions that cover vital topics and NEC codes relevant to journeyman electricians.

Our practice test allows you to assess your knowledge and identify areas for improvement. It helps you study more effectively and increases your chances of passing the actual exam. The best part? No registration is required, so you can start practicing immediately.

Journeyman Electrician Exam Practice Test Timed

Get ready for your journeyman electrician exam with our free online practice test. Click to begin and take the first step towards becoming a certified journeyman electrician.

Journeyman Electrician Practice Test (Time Limit)

Journeyman Electrician Practice Test Online Test
Total Items: 35
Time Limit: 35 minutes
Free Test, NO registration is Required

1 / 35

Q35. A 120/240-volt, single-phase service entrance has (2) 1/0 AWG copper ungrounded conductors and one grounded conductor. What is the minimum size of the grounding electrode conductor required?

(A) 4 AWG copper

(B) 6 AWG copper

(D) 1/0 AWG copper

2 / 35

Q34. Disregarding special conditions or occupancies, a building or other structure that a branch circuit or feeder serves on the load side of a service disconnecting means shall be supplied by ____________.

(A) Two or less feeders or branch circuits

(B) Multiple feeders or branch circuits

(D) None of the above

3 / 35

Q33. Which 120-volt, single-phase, 15- and 20-ampere dwelling branch circuits, supplying outlets or devices, shall be protected by an AFCI device?

(A) Family rooms, living rooms, bedrooms

(B) Kitchens, dining rooms, garages

(D) Kitchens, libraries, attics

4 / 35

Q32. What size supply cord is required to supply a mobile home with a 220-VA 120-v heater, 220-VA 120-v exhaust fan, a 400-VA, 120-v dishwasher, and a 6,000-W electric range?

(A) 30-amp

(B) 50-amp

(D) 60-amp

5 / 35

Q31. Nonmetallic-sheathed cable shall be supported and secured by staples, or other means, at intervals not exceeding ________ and within _________ of every cable entry into enclosures such as outlet boxes, junction boxes, cabinets, or fittings.

(A) 3 ½ feet, 12 inches

(B) 3 ½ feet, 30 inches

(D) 4 feet, 12 inches

6 / 35

Q30. Except for equipment specifically listed for operation at 100 percent of its rating, where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous load plus ________ of the continuous load.

(A) 115 percent

(B) 83 percent

(D) 125 percent

7 / 35

Q29. In a dwelling unit, receptacles installed within 3 feet of a water heater must be protected by a GFCI receptacle.

True

False

8 / 35

Q28. Conductors that supply one or more welders shall be protected by an overcurrent device rated or set at not more than:

(A) 100 percent of the conductor ampacity

(B) 150 percent of the conductor ampacity

(D) 125 percent of the conductor ampacity

9 / 35

Q27. A single-family dwelling has a Single-Phase 125-ampere sub-panel in the garage with a main breaker in it rated at 125-amperes. What size equipment grounding conductor shall be used to feed the sub-panel?

(A) 8 AWG copper

(B) 6 AWG copper

(D) 2 AWG copper

10 / 35

Q26. Copper conductors, for each phase, polarity, neutral, or grounded circuit shall be permitted to be connected in parallel (electrically joined at both ends) only in sizes __________ where installed in other than exempt control circuits.

(A) 1/0 AWG and larger

(B) 2/0 AWG and larger

(D) 250kcmil and larger

11 / 35

Q25. A Single-Phase, 3-wire 240-volt service has (2) 2/0 THHN (copper) ungrounded service entrance conductors, what is the minimum size grounding electrode conductor that must be installed?

(A) 4 AWG copper

(B) 6 AWG copper

(D) 6 AWG aluminum

12 / 35

Q24. An incandescent lamp for general use on lighting branch circuits shall not be equipped with a medium base if rating over ___________, or with a mogul base if rated over ____________.

(A) 150 watts, 1000 watts

(B) 300 watts, 1000 watts

(D) 300 watts, 1500 watts

13 / 35

Q23. The service conductors between the terminals of the service equipment and a point usually outside the building, clear of building walls, where joined by tap or splice to the service drop or overhead service conductors – is defined as what?

(A) Service Entrance Conductors (Overhead)

(B) Service Entrance Conductors (Underground)

(D) Service Drop

14 / 35

Q22. When calculating a service load, a load of not less than ________ volt-amperes shall be included for each 2-wire laundry branch circuit installed.

(A) 1,200

(B) 950

(D) 3,000

15 / 35

Q21. A single-family dwelling out in the country has a floor area of 1500 square feet, with no garage. Appliances are a 10-kW range and a 6-kW, 240-volt dryer. There are no heating or air conditioning loads, nor a dishwasher or garbage disposal. Using the Standard Method, calculate the minimum size feeder required for this dwelling.

(A) 88-amp

(B) 79-amp

(D) 112-amp

16 / 35

Q20. The total cross-sectional area of 100 feet run of 2 inch EMT conduit is 3.356 square inches, and has 6 12 AWG conductors inside it. What is the total area allowed to be taken up by all conductors in this conduit, regardless of quantity?

(A) 1.342 square inches

(B) 1.566 square inches

(D) 2.013 square inches

17 / 35

Q19. At all points where the armor of ________ terminates, a fitting shall be provided to protect wires from abrasion, unless the design of the outlet boxes or fittings is such as to afford equal protection, and in addition, an insulating bushing or its equivalent protection shall be provided between the conductors and the armor.

(A) Type MC

(B) Type AC

(D) Type UF

18 / 35

Q18. Heat-resistant thermoplastic insulation covering 8 AWG conductors are listed for use in ________ and ______ locations?

(A) Wet, dry

(B) Dry, damp

(D) Indoor, other than dwelling

19 / 35

Q17. What is the allowable ampacity for a flexible Type-SO cord with 3 current-carrying conductors?

(A) 30-amp

(B) 25-amp

(D) 18-amp

20 / 35

Q16. What is the maximum allowed 1/0 AWG THHN conductors can fit in a 1 ½” EMT conduit?

(A) 1

(B) 3

(D) 4

21 / 35

Q15. An intersystem bonding termination for connecting intersystem bonding conductors shall be provided _________ enclosures at the service equipment or metering equipment enclosures and at the disconnecting means for any additional buildings or structures.

(A) Internal to

(B) External to

(D) Inside all

22 / 35

Q14. Type SE service-entrance cable shall be permitted for use where the insulated conductors are used for circuit wiring and the uninsulated conductor is used only for equipment grounding purposes – without considering exceptions.

True

False

23 / 35

Q13. A branch-circuit overcurrent protective device is a device capable of providing protection for service, feeder, and branch circuits and equipment over the full range of over-currents between its _______ and its ________.

(A) Short-circuit, ground-fault

(B) Rated over-current rating, voltage rating

(D) Rated current, interrupting rating

24 / 35

Q12. Splicing of the wire-type grounding electrode conductor shall be permitted only by irreversible compression-type connectors listed as grounding and bonding equipment or by:

(A) The exothermic welding process

(B) The endothermic welding process

(D) A listed bolt-and-nut termination block

25 / 35

Q11. A 4 inch x 2 1/8 inch metal square box, having a minimum volume of 30.3 cubic inches, shall be allowed to have no more than _______ 12 AWG conductors in it.

(A) 10

(B) 12

(D) 9

26 / 35

Q10. Screws used for the purpose of attaching receptacles to a box shall be of the type provided with a listed receptacle, or shall be machine screws having __________ or part of listed assemblies or systems, in accordance with the manufacturer’s instructions.

(A) 18 threads per inch

(B) 21 threads per inch

(D) 32 threads per inch

27 / 35

Q9. Ceiling outlets shall be required to support a luminaire weighing a minimum of ________. A luminaire that weighs more than ________ shall be supported independently of the outlet box, unless the outlet box is listed for not less than the weight to be supported.

(A) 45lb, 60lb

(B) 25lb, 50lb

(D) 50lb, 50lb

28 / 35

Q8. FMC shall not be used in the following:

(A) In dry locations

(B) Within 6ft of the outside edge of a water source, such as a bathtub, shower, or sink basin

(D) In dwelling unit attic and storage spaces

29 / 35

Q7. Feeder conductors shall be tapped, without overcurrent protection at the tap if:

(A) The ampacity of the tap conductors is not more than the calculated loads on the circuits supplied by the tap conductors

(B) The ampacity of the tap conductors is not more than the rating of the equipment containing an overcurrent protection device(s) supplied by the tap conductors

(C) The tap conductors do not extend beyond the switchboard, switchgear, panelboard, disconnecting means, or control devices they supply

(D) The voltage between any two ungrounded conductors supplying the tap conductors does not exceed 250-volts to ground

30 / 35

Q6. In damp locations (not wet locations) a flush-mounted switch or circuit breaker shall not be required to be equipped with a weather-proof cover.

True

False

31 / 35

Q1. In a trench below 2 inches thick concrete or equivalent, conductors installed in Ridgid Metal Conduit must be buried below a minimum of:

(A) 12 inches of covering

(B) 6 inches of covering

(D) 2 inches of covering

32 / 35

Q2. Underground raceways and cable assemblies entering a hand-hole enclosure shall extend into the enclosure, but they shall not be required to be mechanically connected to the enclosure.

True

False

33 / 35

Q3. Multi-wire branch circuits shall supply only ___________________.

(A) Line-to-ground loads

(B) Line-to-neutral loads

(D) Three-phase loads

34 / 35

Q4. The connection of a grounding electrode conductor or bonding jumper to a grounding electrode shall be made in a manner that will:

(A) Ensure an effective grounding path

(B) Ensure an effective bonding path

(D) Ensure an effective grounding path

35 / 35

Q5. Ground-fault circuit-interrupter protection for personnel shall be installed in the branch circuit supplying luminaires operating at:

(A) Currents greater than the low-voltage contact limit

(B) Voltages lower than the low-voltage contact limit

(D) Currents lower than the low-voltage contact limit

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