Hawaii Journeyman Electrician Exam
Practice Test Questions And Correct
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1. What is the maximum allowable voltage drop for branch circuits
according to the NEC?
A. 1%
B. 2%
C. 3%
D. 5%
Rationale: The NEC recommends a maximum voltage drop of 3% for
branch circuits to ensure proper equipment operation and efficiency.
2. Which conductor type is commonly used for residential wiring in
Hawaii?
A. Aluminum
B. Copper
C. Iron
D. Steel
Rationale: Copper is preferred for residential wiring due to its high
conductivity, durability, and safety.
3. What is the purpose of a ground-fault circuit interrupter (GFCI)?
A. Prevent overloads
B. Prevent short circuits
C. Protect against electrical shock
, D. Increase circuit voltage
Rationale: GFCIs detect ground faults and interrupt the circuit to
prevent electrical shock.
4. Which NEC article covers branch circuits?
A. 210
B. 220
C. 210
D. 250
Rationale: NEC Article 210 specifies requirements for branch circuits
including rating, conductors, and protection.
5. What is the typical color code for grounded conductors in Hawaii?
A. Black
B. Red
C. White or gray
D. Green
Rationale: NEC requires grounded conductors to be white or gray for
identification.
6. What is the minimum burial depth for a nonmetallic-sheathed cable in
a residential trench?
A. 6 inches
B. 12 inches
C. 24 inches
D. 30 inches
Rationale: NEC Table 300.5 specifies 24 inches minimum depth for
residential nonmetallic-sheathed cables in a trench.
7. How often must arc-fault circuit interrupters (AFCIs) be installed in
new homes?
A. Only kitchens
B. Bedrooms
C. Bathrooms
D. Garages
Rationale: NEC requires AFCIs in bedrooms to protect against arc
faults, which are a major cause of electrical fires.
8. What is the main purpose of a neutral conductor?
A. Carry current to ground
, B. Carry unbalanced current back to the source
C. Protect equipment
D. Increase voltage
Rationale: The neutral provides a return path for unbalanced current
in multi-wire circuits.
9. Which type of conduit is required outdoors exposed to sunlight?
A. EMT
B. PVC
C. FMC
D. RMC
Rationale: PVC is resistant to sunlight and moisture, making it
suitable for outdoor installations.
10. What is the maximum allowable overcurrent protection for a 14
AWG copper conductor?
A. 10 A
B. 15 A
C. 20 A
D. 25 A
Rationale: NEC Table 310.15 specifies 15 A maximum for 14 AWG
copper conductors.
11. In a 3-phase, 4-wire system, what is the voltage between two
phases of a 208V system?
A. 120V
B. 208V
C. 208V
D. 240V
Rationale: In a 208Y/120V 3-phase system, the voltage between any
two phases is 208V.
12. What is the minimum size copper equipment grounding
conductor for a 60 A branch circuit?
A. 10 AWG
B. 8 AWG
C. 10 AWG
D. 12 AWG
Practice Test Questions And Correct
Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant Download
1. What is the maximum allowable voltage drop for branch circuits
according to the NEC?
A. 1%
B. 2%
C. 3%
D. 5%
Rationale: The NEC recommends a maximum voltage drop of 3% for
branch circuits to ensure proper equipment operation and efficiency.
2. Which conductor type is commonly used for residential wiring in
Hawaii?
A. Aluminum
B. Copper
C. Iron
D. Steel
Rationale: Copper is preferred for residential wiring due to its high
conductivity, durability, and safety.
3. What is the purpose of a ground-fault circuit interrupter (GFCI)?
A. Prevent overloads
B. Prevent short circuits
C. Protect against electrical shock
, D. Increase circuit voltage
Rationale: GFCIs detect ground faults and interrupt the circuit to
prevent electrical shock.
4. Which NEC article covers branch circuits?
A. 210
B. 220
C. 210
D. 250
Rationale: NEC Article 210 specifies requirements for branch circuits
including rating, conductors, and protection.
5. What is the typical color code for grounded conductors in Hawaii?
A. Black
B. Red
C. White or gray
D. Green
Rationale: NEC requires grounded conductors to be white or gray for
identification.
6. What is the minimum burial depth for a nonmetallic-sheathed cable in
a residential trench?
A. 6 inches
B. 12 inches
C. 24 inches
D. 30 inches
Rationale: NEC Table 300.5 specifies 24 inches minimum depth for
residential nonmetallic-sheathed cables in a trench.
7. How often must arc-fault circuit interrupters (AFCIs) be installed in
new homes?
A. Only kitchens
B. Bedrooms
C. Bathrooms
D. Garages
Rationale: NEC requires AFCIs in bedrooms to protect against arc
faults, which are a major cause of electrical fires.
8. What is the main purpose of a neutral conductor?
A. Carry current to ground
, B. Carry unbalanced current back to the source
C. Protect equipment
D. Increase voltage
Rationale: The neutral provides a return path for unbalanced current
in multi-wire circuits.
9. Which type of conduit is required outdoors exposed to sunlight?
A. EMT
B. PVC
C. FMC
D. RMC
Rationale: PVC is resistant to sunlight and moisture, making it
suitable for outdoor installations.
10. What is the maximum allowable overcurrent protection for a 14
AWG copper conductor?
A. 10 A
B. 15 A
C. 20 A
D. 25 A
Rationale: NEC Table 310.15 specifies 15 A maximum for 14 AWG
copper conductors.
11. In a 3-phase, 4-wire system, what is the voltage between two
phases of a 208V system?
A. 120V
B. 208V
C. 208V
D. 240V
Rationale: In a 208Y/120V 3-phase system, the voltage between any
two phases is 208V.
12. What is the minimum size copper equipment grounding
conductor for a 60 A branch circuit?
A. 10 AWG
B. 8 AWG
C. 10 AWG
D. 12 AWG
