10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free HI-JE questions are organized by exam domain, so you can see how each part of the Hawaii Journey Worker Electrician (EJ) License Exam blueprint is tested. Reveal the answer and explanation under each question.
Domain 1: General Electrical Knowledge
Question 1
Several 120 V loads supplied by a 120/240 V single-phase feeder become unusually bright on one leg and dim on the other. At the feeder's load end, a qualified electrician records 92 V from L1 to neutral, 148 V from L2 to neutral, and a steady 240 V from L1 to L2. The two line-to-neutral readings move in opposite directions as loads change. After isolating the feeder, which fault should the electrician investigate first?
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Correct answer: B - An open or high-resistance feeder neutral.
Domain 2: Service, Feeders, and Branch Circuits
Question 2
A dwelling's standard-method service calculation includes 2,400 ft² of qualifying floor area, two required small-appliance branch circuits, one required laundry branch circuit, and a separate 5,500 W electric clothes dryer. Use 3 VA/ft² for general lighting and 1,500 VA for each required small-appliance or laundry circuit. Under the 2020 NEC, what demand load belongs in the combined general-lighting, small-appliance, and laundry category?
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Correct answer: B - 6,045 VA
Question 3
Drawings for a new dwelling built to the 2020 NEC specify a combination-type AFCI breaker for a 120 V, 20 A kitchen countertop receptacle circuit. The breaker is not marked as a GFCI or dual-function device, and the receptacles are ordinary grounding-type devices with no other protective equipment. What required protection has been omitted?
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Correct answer: A - Personnel ground-fault protection.
Domain 3: Grounding and Bonding
Question 4
A new panelboard is supplied by a four-wire feeder downstream of the service disconnect. Its feeder equipment grounding conductor carries current that rises and falls with ordinary 120 V loads. With the feeder locked out and absence of voltage verified, inspection finds the neutral bar bonded to the panel enclosure. The service bonding connection is correct. Under the 2020 NEC, which repair eliminates the unintended current path?
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Correct answer: D - Isolate the neutral bar; retain the enclosure's equipment-grounding connection.
Domain 4: Conductors and Cables
Question 5
Before an underground feeder is energized, moisture is found inside its buried PVC raceway. The undamaged copper conductors are marked THHN/THWN-2, and their ampacity, terminations, and installation otherwise comply. A reviewer proposes replacing the conductors solely because the raceway interior is wet. Under the 2020 NEC, which assessment is valid for the installed conductors?
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Correct answer: A - Retain the THHN/THWN-2 conductors; their dual rating permits the wet interior.
Question 6
Select the smallest listed copper conductor for a 20 A noncontinuous fixed load under the 2020 NEC. The raceway is longer than 24 in and contains 12 current-carrying conductors. Ambient temperature is 38°C; THWN-2 insulation is rated 90°C, and all terminals are identified for 75°C. Ampacities at 75°C/90°C are: 12 AWG, 25/30 A; 10 AWG, 35/40 A; 8 AWG, 50/55 A; and 6 AWG, 65/75 A. Apply a current-carrying-conductor adjustment factor of 0.50 and a 90°C ambient correction factor of 0.91. A 20 A breaker will protect the circuit, and raceway fill is adequate.
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Correct answer: C - 8 AWG copper
Domain 5: Raceways and Boxes
Question 7
Six 12/2-with-ground cables enter a box containing one duplex receptacle on a single yoke, internal cable clamps, and two insulated 12 AWG pigtails that remain entirely inside the box. The two insulated conductors in each cable are spliced in the box; all entering equipment grounding conductors are also 12 AWG. Any bonding pigtails remain wholly inside, and there are no support fittings. Using 2.25 in³ per 12 AWG volume allowance, which marked box volume is the smallest listed choice that satisfies the 2020 NEC box-fill rules?
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Correct answer: C - 40 in³
Domain 7: Electrical Power, Motors, and Equipment for General Use
Question 8
For a continuous-duty, 15 hp, 460 V, three-phase motor, the nameplate shows 19 A, a service factor of 1.0, and a temperature rise of 35°C. Its NEC table full-load current is 21 A. Before any allowance for starting or carrying difficulty is considered, what maximum current basis does the 2020 NEC permit for selecting the motor's separate overload protection?
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Correct answer: B - 23.75 A
Domain 9: Lighting
Question 9
After attic insulation is added, several recessed luminaires begin cycling off and back on. Their lamps are within the marked wattage limits, supply voltage is steady, and the luminaires are not Type IC. Insulation now covers the housings and touches their wiring compartments. Which repair permits retaining these luminaires while meeting the 2020 NEC insulation-clearance requirement?
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Correct answer: D - Remove overlying insulation and maintain 4 in clearance around each enclosure and wiring compartment.
Domain 10: Safety Information
Question 10
During an NFPA 70E absence-of-voltage procedure on locked-out 480 V equipment, a qualified electrician proves the contact tester on a known energized source, then obtains zero readings for every required phase-to-phase and phase-to-ground test. Immediately afterward, the tester fails to indicate voltage on that same source, which is independently confirmed to remain energized. How must the electrician proceed?
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Correct answer: C - Maintain lockout and repeat the voltage-verification sequence with a proven tester.