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JOURNEYMAN NEC 2020

NEC 2020 Journeyman Practice Test 5

Free Online Journeyman Electrician Practice Test — NEC 2020 Edition 5This free 30-question practice test covers GFCI and AFCI protection rules, special occupancies such as hazardous locations, health care facilities, marinas, signs, EV charging, and swimming pools, plus a mixed review of core topics. All questions and explanations are based on the 2020 NEC.

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Frequently Asked Questions

Yes — completely free with no account required. All questions include detailed explanations and NEC references.

Most state Journeyman exams have 80–100 questions covering NEC code, wiring methods, branch circuits, motor controls, and load calculations.

Most states require a 70–75% passing score. This practice test uses the same 70% pass threshold so you know where you stand.

Questions are written to the 2020 NEC. Check your state licensing board to confirm which edition your state has adopted.

How to Use This Practice Test

This NEC 2020 Journeyman Practice Test 5 has 30 questions with detailed answers and NEC references. Take the full test, review every wrong answer, and look up the NEC article it references before moving on.

Tip: This is an open-book exam — tab your NEC index and Articles 210, 250, and 430 before you start.

Topics covered: Branch circuits, grounding, wiring methods, load calculations, and motors.
Passing score: 70–75% (most states). Aim for 80% on practice tests so the real exam feels easy.
Questions: 30 multiple-choice, one correct answer each

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45 min

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70%

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NEC 2020 Journeyman Practice Test 5 — Question List

Question 1: Per NEC Article 100, a "qualified person" is defined as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations, and has received what?

Safety training on the hazards involved
A college diploma in any field
A driver's license
No training is required at all

NEC Reference: NEC Article 100

Question 2: Per NEC Article 100, equipment described as "identified" (as applied to equipment) is recognized as suitable for:

The specific purpose, function, or application
Any random use, regardless of listing
Only outdoor use
Nothing — the term has no defined meaning

NEC Reference: NEC Article 100

Question 3: Per NEC 210.8(A)(6), 125-volt, 15- and 20-ampere receptacles installed to serve dwelling unit kitchen countertop surfaces must have what protection?

GFCI protection
No protection is required
AFCI protection only
A dedicated 50-ampere circuit

NEC Reference: NEC 210.8(A)(6)

Question 4: Per NEC 210.8(A)(7), a 125-volt, 15- or 20-ampere receptacle installed within 6 feet of the outside edge of a sink, anywhere in a dwelling unit, generally requires what protection?

GFCI protection
No protection, since it is not a kitchen or bathroom
A dedicated neutral only
Tamper-resistance only, with no GFCI

NEC Reference: NEC 210.8(A)(7)

Question 5: Per NEC 210.8(A)(5), 125-volt, 15- and 20-ampere receptacles installed in unfinished portions of a dwelling unit basement must have what protection?

GFCI protection
No protection is required in a basement
AFCI protection only
A dedicated sump pump circuit only

NEC Reference: NEC 210.8(A)(5)

Question 6: Per NEC 210.8(B), 125-volt, 15- and 20-ampere receptacles installed in a commercial kitchen (other than a dwelling unit) generally require what protection?

GFCI protection
No protection is required in commercial kitchens
AFCI protection only
A padlock on the receptacle cover

NEC Reference: NEC 210.8(B)

Question 7: Per NEC 210.12(A), does the AFCI protection requirement for 120-volt, 15- and 20-ampere branch circuits generally extend to guest rooms and guest suites of hotels and motels?

Yes, guest rooms and guest suites are included
No, hotels are always excluded
Only if the hotel has more than 100 rooms
Only for circuits over 20 amperes

NEC Reference: NEC 210.12(A)

Question 8: Per NEC 406.12, which 125-volt, 15- and 20-ampere receptacles installed in a dwelling unit must generally be of the tamper-resistant type?

Essentially all dwelling unit receptacles
Only receptacles in a nursery
Only outdoor receptacles
None — this rule does not exist

NEC Reference: NEC 406.12

Question 9: Per NEC 501.10(A)(1), which wiring methods are generally recognized for use in a Class I, Division 1 hazardous (classified) location?

Threaded RMC, threaded IMC, or Type MI cable
Type NM cable only
Open knob-and-tube wiring
Uninsulated bare conductors

NEC Reference: NEC 501.10(A)(1)

Question 10: Per NEC 501.15, seal fittings are generally required in conduit runs at the boundary between a Class I hazardous (classified) location and:

An adjoining unclassified (non-hazardous) location
Another Class I location of the exact same division
Nothing — seals are never required
The outdoors only, never indoors

NEC Reference: NEC 501.15

Question 11: Per NEC 517.13(B), branch circuits serving patient care spaces in a health care facility must generally include which redundant grounding provision, in addition to a metal raceway or cable armor/sheath that itself qualifies as an equipment grounding conductor?

An additional insulated copper equipment grounding conductor
No grounding is required in a hospital
A ground rod driven at every patient bed
A wireless ground-fault sensor only

NEC Reference: NEC 517.13(B)

Question 12: Per NEC 550.32(A), the service disconnecting means for a mobile home must generally be:

Not installed in or on the mobile home; located adjacent to it
Installed inside the mobile home only
Mounted directly on the mobile home's roof
Not required at all for mobile homes

NEC Reference: NEC 550.32(A)

Question 13: Per NEC 555.3, shore power receptacles at a marina or boatyard, rated up to and including 50 amperes at 125-250 volts, must generally have ground-fault protection not exceeding what leakage current?

5 milliamperes
30 milliamperes
100 milliamperes
No leakage limit applies

NEC Reference: NEC 555.3

Question 14: Per NEC 600.6(A), the disconnecting means for a sign or outline lighting system must generally be located within sight of the sign, or where not within sight, must be:

Capable of being locked in the open position
Left unlocked at all times
Removed entirely
Not required if the sign is small

NEC Reference: NEC 600.6(A)

Question 15: Per NEC 600.7(A), signs and outline lighting systems must generally be:

Grounded and bonded per Article 250
Left isolated from ground entirely
Insulated from all metal parts
Exempt from all grounding requirements

NEC Reference: NEC 600.7(A)

Question 16: Per NEC 625.44, electric vehicle supply equipment (EVSE) rated more than 60 amperes or more than 150 volts to ground generally requires what?

A disconnecting means
No disconnecting means, regardless of rating
A second, redundant EVSE unit
Removal of all overcurrent protection

NEC Reference: NEC 625.44

Question 17: Per NEC 680.23(A)(3), a wet-niche underwater luminaire in a permanently installed swimming pool must generally have what protection, regardless of its voltage rating?

GFCI protection
No protection, since it is underwater and sealed
AFCI protection only
A dedicated 50-ampere circuit only

NEC Reference: NEC 680.23(A)(3)

Question 18: Per NEC 680.26(B), the equipotential bonding grid around a permanently installed swimming pool must generally bond together which of the following?

The pool structure, perimeter surface, and metal fittings/equipment
Only the pool ladder, nothing else
Only items more than 20 feet from the pool
Nothing — bonding is optional for pools

NEC Reference: NEC 680.26(B)

Question 19: Per NEC 680.21(A), which of the following is a recognized wiring method for the circuit supplying a permanently installed pool pump motor?

Rigid metal conduit (RMC) or rigid PVC conduit
Open knob-and-tube wiring
Bare conductors with no raceway at all
Type NM cable run directly through the pool water

NEC Reference: NEC 680.21(A)

Question 20: Per NEC 690.12, PV system conductors located outside the array boundary must generally be reduced to what maximum voltage and power, within 30 seconds of rapid shutdown initiation?

30 volts and 240 volt-amperes
120 volts and 1,000 volt-amperes
600 volts, with no power limit
There is no voltage or power limit

NEC Reference: NEC 690.12

Question 21: Per NEC 695.6(A), overcurrent protection for the supply conductors of a fire pump must generally be sized to allow which current to pass without opening?

The full locked-rotor current of the fire pump motor(s)
Only 50% of the normal running current
Zero — fire pumps require no conductors
Only the current drawn by the pump room lighting

NEC Reference: NEC 695.6(A)

Question 22: Per NEC 725.1, Article 725 covers the installation of which types of circuits?

Class 1, Class 2, and Class 3 remote-control, signaling, and power-limited circuits
Only high-voltage transmission lines
Only underground electrical services
Only swimming pool wiring

NEC Reference: NEC 725.1

Question 23: Per NEC 760.1, Article 760 covers the installation of wiring and equipment for:

Fire alarm systems
Swimming pool pumps
Elevator hoistway wiring only
Overhead utility transmission lines

NEC Reference: NEC 760.1

Question 24: True or false: per NEC 800.133, communications circuit conductors must generally be kept separated from electric light and power conductors, unless specific separation or barrier conditions are met.

True
False
Only in outdoor installations
Only for fiber optic cable

NEC Reference: NEC 800.133

Question 25: Per NEC 210.8(A)(2), 125-volt, 15- and 20-ampere receptacles installed in a dwelling unit garage generally require what protection?

GFCI protection
No protection is required
AFCI protection only
A dedicated 50-ampere circuit

NEC Reference: NEC 210.8(A)(2)

Question 26: A dwelling unit has a 125-volt, 20-ampere receptacle mounted outdoors under an attached carport, exposed to the weather. Per the 2020 NEC, what protection does NEC 210.8(A)(3) require for this receptacle?

GFCI protection is required
No protection is required for a carport receptacle
Only AFCI protection is required, not GFCI
Only a bubble cover is required, with no GFCI

NEC Reference: NEC 210.8(A)(3)

Question 27: Per NEC 314.16(B)(1), a conductor that originates outside a box and terminates or is spliced inside that box is generally counted how many times in the box-fill calculation, based on its size?

Once
Twice
Three times
It is never counted

NEC Reference: NEC 314.16(B)(1)

Question 28: Per NEC 230.66(A), equipment intended to be used as service equipment must generally be:

Listed and marked suitable for use as service equipment
Any general-purpose panel, with no marking needed
Unmarked and unlisted, by design
Marked only with the installer's initials

NEC Reference: NEC 230.66(A)

Question 29: Per NEC Article 100, an "individual branch circuit" is defined as a branch circuit that supplies:

Only one piece of utilization equipment
The entire building at once
At least ten receptacles
Only emergency lighting

NEC Reference: NEC Article 100

Question 30: Per NEC 250.24(A)(5), on the load side of the service disconnecting means, the grounded (neutral) conductor must generally:

Be bonded again at every downstream panel, for extra safety
Remain isolated from equipment grounding conductors and the enclosure
Be removed entirely from the panel
Be connected directly to a water pipe only

NEC Reference: NEC 250.24(A)(5)

Key NEC References for This Test

Article	What It Covers
Art. 100	Definitions — know: feeder, branch circuit, OCPD, dwelling unit
Art. 210	Branch Circuits — GFCI/AFCI locations, circuit ratings, outlet spacing (most tested)
Art. 220	Load Calculations — dwelling unit standard method
Art. 250	Grounding & Bonding — GEC sizing, electrode system, EGC
Art. 310	Conductors — ampacity (Table 310.12), insulation, derate rules
Art. 430	Motors — conductor 125% FLA, OCPD 250% FLA, overloads, disconnects

Study Tip: Tab Articles 210, 250, and 430 in your NEC before the exam. Know the Table 310.12 ampacity values for 14, 12, 10, 8, 6, and 4 AWG copper.

NEC 2020 Journeyman Practice Test 5

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NEC 2020 Journeyman Practice Test 5

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NEC 2020 Journeyman Practice Test 5 — Question List

Question 1: Per NEC Article 100, a "qualified person" is defined as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations, and has received what?

Question 2: Per NEC Article 100, equipment described as "identified" (as applied to equipment) is recognized as suitable for:

Question 3: Per NEC 210.8(A)(6), 125-volt, 15- and 20-ampere receptacles installed to serve dwelling unit kitchen countertop surfaces must have what protection?

Question 4: Per NEC 210.8(A)(7), a 125-volt, 15- or 20-ampere receptacle installed within 6 feet of the outside edge of a sink, anywhere in a dwelling unit, generally requires what protection?

Question 5: Per NEC 210.8(A)(5), 125-volt, 15- and 20-ampere receptacles installed in unfinished portions of a dwelling unit basement must have what protection?

Question 6: Per NEC 210.8(B), 125-volt, 15- and 20-ampere receptacles installed in a commercial kitchen (other than a dwelling unit) generally require what protection?

Question 7: Per NEC 210.12(A), does the AFCI protection requirement for 120-volt, 15- and 20-ampere branch circuits generally extend to guest rooms and guest suites of hotels and motels?

Question 8: Per NEC 406.12, which 125-volt, 15- and 20-ampere receptacles installed in a dwelling unit must generally be of the tamper-resistant type?

Question 9: Per NEC 501.10(A)(1), which wiring methods are generally recognized for use in a Class I, Division 1 hazardous (classified) location?

Question 10: Per NEC 501.15, seal fittings are generally required in conduit runs at the boundary between a Class I hazardous (classified) location and:

Question 11: Per NEC 517.13(B), branch circuits serving patient care spaces in a health care facility must generally include which redundant grounding provision, in addition to a metal raceway or cable armor/sheath that itself qualifies as an equipment grounding conductor?

Question 12: Per NEC 550.32(A), the service disconnecting means for a mobile home must generally be:

Question 13: Per NEC 555.3, shore power receptacles at a marina or boatyard, rated up to and including 50 amperes at 125-250 volts, must generally have ground-fault protection not exceeding what leakage current?

Question 14: Per NEC 600.6(A), the disconnecting means for a sign or outline lighting system must generally be located within sight of the sign, or where not within sight, must be:

Question 15: Per NEC 600.7(A), signs and outline lighting systems must generally be:

Question 16: Per NEC 625.44, electric vehicle supply equipment (EVSE) rated more than 60 amperes or more than 150 volts to ground generally requires what?

Question 17: Per NEC 680.23(A)(3), a wet-niche underwater luminaire in a permanently installed swimming pool must generally have what protection, regardless of its voltage rating?

Question 18: Per NEC 680.26(B), the equipotential bonding grid around a permanently installed swimming pool must generally bond together which of the following?

Question 19: Per NEC 680.21(A), which of the following is a recognized wiring method for the circuit supplying a permanently installed pool pump motor?

Question 20: Per NEC 690.12, PV system conductors located outside the array boundary must generally be reduced to what maximum voltage and power, within 30 seconds of rapid shutdown initiation?

Question 21: Per NEC 695.6(A), overcurrent protection for the supply conductors of a fire pump must generally be sized to allow which current to pass without opening?

Question 22: Per NEC 725.1, Article 725 covers the installation of which types of circuits?

Question 23: Per NEC 760.1, Article 760 covers the installation of wiring and equipment for:

Question 24: True or false: per NEC 800.133, communications circuit conductors must generally be kept separated from electric light and power conductors, unless specific separation or barrier conditions are met.

Question 25: Per NEC 210.8(A)(2), 125-volt, 15- and 20-ampere receptacles installed in a dwelling unit garage generally require what protection?

Question 26: A dwelling unit has a 125-volt, 20-ampere receptacle mounted outdoors under an attached carport, exposed to the weather. Per the 2020 NEC, what protection does NEC 210.8(A)(3) require for this receptacle?

Question 27: Per NEC 314.16(B)(1), a conductor that originates outside a box and terminates or is spliced inside that box is generally counted how many times in the box-fill calculation, based on its size?

Question 28: Per NEC 230.66(A), equipment intended to be used as service equipment must generally be:

Question 29: Per NEC Article 100, an "individual branch circuit" is defined as a branch circuit that supplies:

Question 30: Per NEC 250.24(A)(5), on the load side of the service disconnecting means, the grounded (neutral) conductor must generally:

Key NEC References for This Test

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