Previous Journeyman Electrician Practice Test 32 Next Journeyman Electrician Practice Test 34

JOURNEYMAN NEC 2023

Journeyman Electrician Practice Test 33

Free Online Journeyman Electrician Exam Practice Test — 33This free 30-question practice test covers a wide range of journeyman electrician exam topics based on the 2023 NEC, including load calculations, lampholders, emergency transfer switches, conduit fill, DC motor theory, AC circuit fundamentals, grounding, GFCI requirements, service equipment, and more.

TOPICS COVERED

journeyman electrician

How this test works

Read each question carefully

Look for absolute words like always / never — they often distinguish the right answer.

Manage your time

You have 45 min for 30 questions. Skip tough ones and come back.

Progress is auto-saved

Your answers are saved locally — a page refresh won't lose your work.

Review your answers

After submitting you'll see every explanation and your NEC references.

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 2023 NEC. Check your state licensing board to confirm which edition your state has adopted.

Key rules to review before starting: In commercial occupancies, multi-outlet equipment with 4 or more outlets counts at 90 VA per outlet (NEC 220.14(I)). Heavy-duty lampholders on circuits above 20A must be rated at least 660 VA (NEC 210.21(A)). Emergency system transfer switches must be electrically operated and mechanically held (NEC 700.5(C)). Conduit fill for 3 or more conductors must not exceed 40% (NEC Chapter 9, Table 1). GFCI protection is required in dwelling garages (NEC 210.8(A)(2)) and unfinished basements (NEC 210.8(A)(5)). The minimum service disconnect for a single-family dwelling is 100A (NEC 230.79(C)). Overhead service-drop conductors must clear driveways by 12 feet (NEC 230.24(B)(2)).

Questions

45 min

Time

70%

Pass

Timer starts immediately. Progress is auto-saved.

Journeyman Electrician Practice Test 33 — Question List

Question 1: What is the calculated load for a quad receptacle manufactured in a single piece of equipment to use in retails shop?

360 Volt-Ampere
720 Volt-Ampere
800 Volt-Ampere
180 Volt-Ampere

NEC Reference: NEC 220.14(I)

Question 2: In a three-wire single-phase system, if the voltage between a hot conductor and the neutral is 120 volts, what is the voltage between the two hot conductors?

240 volts
120 volts
480 volts

Question 3: What is the minimum volt-ampere rating included for heavy duty lamp holder?

660 volt-ampere
560 volt-ampere
460 volt-ampere
760 volt-ampere

NEC Reference: NEC 210.21(A)

Question 4: Which of the following type of automatic transfer switches shall be used in emergency power supply systems?

Electrically operated
Manually Operated
Electrically operated and mechanically held
Electrically operated and electrically held

NEC Reference: NEC 700.5(C)

Question 5: When 4 conductors are grouped in conduit, the conduit shall be permitted to fill ................ percentage of its cross sectional area?

NEC Reference: NEC Chapter 9, Table 1

Question 6: An electrical battery delivers 12 amperes for 12 hrs. What is its Ampere Hour rating?

144 Ah
12 Ah
1 Ah
120 Ah

Question 7: In an electric circuit when the voltage across resistor is doubled, the current in the electric circuit .....................

triple
double
halve
remains constant

Question 8: When a resistor is connected in parallel to two series resistance, the total resistance will .................

increases
decreases

Question 9: Which of the following electrical quantity will remains same in a parallel electric circuit?

Voltage
Current
Resistance
Power

Question 10: Per NEC 210.63, a 125-volt, 15- or 20-ampere receptacle outlet must be installed for heating, air-conditioning, and refrigeration (HVAC/R) equipment. How close must this outlet be to the equipment?

Within 10 feet
Within 25 feet
Within 50 feet
Within 100 feet

NEC Reference: NEC 210.63

Question 11: If the length of a copper conductor is doubled (while keeping the same wire gauge), what happens to its resistance?

Resistance is halved
Resistance stays the same
Resistance doubles
Resistance quadruples

Question 12: Per NEC 240.24(B)(1), overcurrent devices (such as circuit breakers or fuses) shall NOT be located in which of the following areas of a dwelling unit?

Kitchen
Basement
Bathroom
Hallway

NEC Reference: NEC 240.24(B)(1)

Question 13: The size of the grounding electrode conductor (GEC) for an AC service is determined by _____ .

Always No. 8 AWG regardless of service size
The size of the largest service entrance conductor per NEC Table 250.66
Always equal in size to the service entrance conductor
The size of the neutral conductor only

NEC Reference: NEC Table 250.66

Question 14: Per NEC 430.6(A)(1), when sizing motor branch circuit conductors and OCPD, the full-load current (FLC) shall be taken from _____ .

The motor nameplate only
NEC Tables 430.247, 430.248, or 430.250
The highest of nameplate or NEC table values
The manufacturer's data sheet

NEC Reference: NEC 430.6(A)(1)

Question 15: Per NEC 220.51, fixed electric space heating loads in a load calculation shall be calculated at _____ percent of the total connected load.

65%
80%
100%
125%

NEC Reference: NEC 220.51

Question 16: Per NEC 450.21(A), a dry-type transformer rated 112.5 kVA or less installed indoors must have a clearance of at least _____ inches from combustible material (unless separated by a fire-resistant heat-insulating barrier).

6 inches
12 inches
18 inches
24 inches

NEC Reference: NEC 450.21(A)

Question 17: Per NEC 440.22(A), the maximum rating of the branch circuit short-circuit and ground-fault protection for a hermetic refrigerant motor-compressor (such as a central air conditioner) is _____ percent of the compressor's rated-load current.

125%
150%
175%
250%

NEC Reference: NEC 440.22(A)

Question 18: Per NEC 210.8(A)(2), GFCI protection is required for receptacles in dwelling unit _____ .

Bedrooms
Garages
Dining rooms
Hallways

NEC Reference: NEC 210.8(A)(2)

Question 19: Three branch loads connected in parallel draw 3 amperes, 5 amperes, and 7 amperes respectively. What is the total current flowing from the source?

7 amperes
5 amperes
15 amperes
35 amperes

Question 20: Per NEC 230.70(A)(1), the service disconnecting means shall be installed at a readily accessible location _____ .

Anywhere convenient inside the building
Outside or inside nearest to the point of service conductor entry
Only outside the building
In a locked utility room at the center of the building

NEC Reference: NEC 230.70(A)(1)

Question 21: Per NEC 230.24(B)(2), service conductors running as overhead wires must be at least _____ feet above a residential driveway.

8 feet
10 feet
12 feet
18 feet

NEC Reference: NEC 230.24(B)(2)

Question 22: In a Class I, Division 1 hazardous location (where flammable vapors are present during normal operation), which wiring method is required?

PVC conduit
Electrical metallic tubing (EMT)
Threaded rigid metal conduit (RMC) or threaded IMC
Non-metallic sheathed cable (NM)

NEC Reference: NEC 501.10(A)(1)

Question 23: Per NEC 210.8(A)(5), GFCI protection is required for receptacles in dwelling unit _____ .

Finished bedrooms
Dining rooms
Unfinished basements
Attics

NEC Reference: NEC 210.8(A)(5)

Question 24: Per NEC 110.26(A)(1), what is the minimum depth of working space required in front of electrical equipment rated 600 volts or less (Condition 1 — no live parts on the opposite side)?

1 foot
2 feet
3 feet
5 feet

NEC Reference: NEC 110.26(A)(1)

Question 25: A 2-wire NM cable is run from a ceiling box to a wall switch (a switch loop). The white conductor is used as the ungrounded (hot) conductor feeding the switch. Per NEC 200.7(C)(1), this white conductor must be _____ at each location where it is accessible.

Left as-is — white wire can always serve as a hot conductor
Permanently re-identified with black tape or other marking
Replaced with a black conductor before installation
Insulated with green tape to show it is grounded

NEC Reference: NEC 200.7(C)(1)

Question 26: Per NEC 230.23(B), service entrance conductors shall not be smaller than _____ copper (or 6 AWG aluminum).

14 AWG
12 AWG
10 AWG
8 AWG

NEC Reference: NEC 230.23(B)

Question 27: In a purely inductive AC circuit, the current _____ the voltage by 90 degrees.

Leads
Is in phase with
Lags
Is 180 degrees from

Question 28: Per NEC 424.3(B), where fixed electric space heating equipment is the only load on a branch circuit, the branch circuit shall be rated at not less than _____ percent of the total connected load.

80%
100%
115%
125%

NEC Reference: NEC 424.3(B)

Question 29: Per NEC 680.22(B)(1), luminaires (light fixtures), lighting outlets, and ceiling fans shall not be installed over a pool or within _____ feet horizontally from the inside walls of the pool.

3 feet
5 feet
6 feet
10 feet

NEC Reference: NEC 680.22(B)(1)

Question 30: A branch circuit supplies a continuous load of 12 amperes and a noncontinuous load of 4 amperes. Per NEC 210.20(A), the minimum branch circuit overcurrent protective device (OCPD) rating must be at least _____ .

15 amperes
16 amperes
20 amperes
25 amperes

NEC Reference: NEC 210.20(A)

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.

Journeyman Electrician Practice Test 33

How this test works

Frequently Asked Questions

Student Reviews

Leave a Review

Key NEC References for This Test

Journeyman Electrician Practice Test 33

How this test works

Frequently Asked Questions

Is this Journeyman Electrician Practice Test 33 free?

How many questions are on the Journeyman Electrician exam?

What score do you need to pass the Journeyman exam?

What NEC edition is this test based on?

Student Reviews

Leave a Review

Journeyman Electrician Practice Test 33 — Question List

Question 1: What is the calculated load for a quad receptacle manufactured in a single piece of equipment to use in retails shop?

Question 2: In a three-wire single-phase system, if the voltage between a hot conductor and the neutral is 120 volts, what is the voltage between the two hot conductors?

Question 3: What is the minimum volt-ampere rating included for heavy duty lamp holder?

Question 4: Which of the following type of automatic transfer switches shall be used in emergency power supply systems?

Question 5: When 4 conductors are grouped in conduit, the conduit shall be permitted to fill ................ percentage of its cross sectional area?

Question 6: An electrical battery delivers 12 amperes for 12 hrs. What is its Ampere Hour rating?

Question 7: In an electric circuit when the voltage across resistor is doubled, the current in the electric circuit .....................

Question 8: When a resistor is connected in parallel to two series resistance, the total resistance will .................

Question 9: Which of the following electrical quantity will remains same in a parallel electric circuit?

Question 10: Per NEC 210.63, a 125-volt, 15- or 20-ampere receptacle outlet must be installed for heating, air-conditioning, and refrigeration (HVAC/R) equipment. How close must this outlet be to the equipment?

Question 11: If the length of a copper conductor is doubled (while keeping the same wire gauge), what happens to its resistance?

Question 12: Per NEC 240.24(B)(1), overcurrent devices (such as circuit breakers or fuses) shall NOT be located in which of the following areas of a dwelling unit?

Question 13: The size of the grounding electrode conductor (GEC) for an AC service is determined by _____ .

Question 14: Per NEC 430.6(A)(1), when sizing motor branch circuit conductors and OCPD, the full-load current (FLC) shall be taken from _____ .

Question 15: Per NEC 220.51, fixed electric space heating loads in a load calculation shall be calculated at _____ percent of the total connected load.

Question 16: Per NEC 450.21(A), a dry-type transformer rated 112.5 kVA or less installed indoors must have a clearance of at least _____ inches from combustible material (unless separated by a fire-resistant heat-insulating barrier).

Question 17: Per NEC 440.22(A), the maximum rating of the branch circuit short-circuit and ground-fault protection for a hermetic refrigerant motor-compressor (such as a central air conditioner) is _____ percent of the compressor's rated-load current.

Question 18: Per NEC 210.8(A)(2), GFCI protection is required for receptacles in dwelling unit _____ .

Question 19: Three branch loads connected in parallel draw 3 amperes, 5 amperes, and 7 amperes respectively. What is the total current flowing from the source?

Question 20: Per NEC 230.70(A)(1), the service disconnecting means shall be installed at a readily accessible location _____ .

Question 21: Per NEC 230.24(B)(2), service conductors running as overhead wires must be at least _____ feet above a residential driveway.

Question 22: In a Class I, Division 1 hazardous location (where flammable vapors are present during normal operation), which wiring method is required?

Question 23: Per NEC 210.8(A)(5), GFCI protection is required for receptacles in dwelling unit _____ .

Question 24: Per NEC 110.26(A)(1), what is the minimum depth of working space required in front of electrical equipment rated 600 volts or less (Condition 1 — no live parts on the opposite side)?

Question 25: A 2-wire NM cable is run from a ceiling box to a wall switch (a switch loop). The white conductor is used as the ungrounded (hot) conductor feeding the switch. Per NEC 200.7(C)(1), this white conductor must be _____ at each location where it is accessible.

Question 26: Per NEC 230.23(B), service entrance conductors shall not be smaller than _____ copper (or 6 AWG aluminum).

Question 27: In a purely inductive AC circuit, the current _____ the voltage by 90 degrees.

Question 28: Per NEC 424.3(B), where fixed electric space heating equipment is the only load on a branch circuit, the branch circuit shall be rated at not less than _____ percent of the total connected load.

Question 29: Per NEC 680.22(B)(1), luminaires (light fixtures), lighting outlets, and ceiling fans shall not be installed over a pool or within _____ feet horizontally from the inside walls of the pool.

Question 30: A branch circuit supplies a continuous load of 12 amperes and a noncontinuous load of 4 amperes. Per NEC 210.20(A), the minimum branch circuit overcurrent protective device (OCPD) rating must be at least _____ .

Key NEC References for This Test

Related Practice Tests