JOURNEYMAN ELECTRICIAN LICENSING
EXAMINATION QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary purpose of a grounding conductor in an electrical
system?
A. To carry normal load current
B. To increase voltage stability
C. To provide a low-impedance path for fault current
D. To reduce power consumption
Rationale: The grounding conductor safely carries fault current to ground,
allowing overcurrent devices to operate.
2. What is the color code for the equipment grounding conductor?
A. Black
B. White
C. Red
D. Green or bare
Rationale: NEC requires equipment grounding conductors to be green or
bare.
3. What is the minimum burial depth for rigid metal conduit under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
, D. 24 inches
Rationale: NEC burial depth tables specify 18 inches for rigid metal conduit
under driveways.
4. What device protects against ground faults?
A. AFCI
B. Circuit breaker
C. Fuse
D. GFCI
Rationale: GFCIs detect imbalance between hot and neutral and trip to
prevent shock.
5. What is the maximum continuous load allowed on a 20-amp circuit?
A. 20 amps
B. 16 amps
C. 18 amps
D. 15 amps
Rationale: Continuous loads are limited to 80% of circuit rating.
6. Which conductor is considered a current-carrying conductor?
A. Grounding conductor
B. Bonding jumper
C. Neutral carrying load current
D. Equipment ground
Rationale: A neutral carrying unbalanced load is considered current-
carrying.
7. What is the standard voltage for residential branch circuits in the U.S.?
A. 208 V
B. 240 V
C. 120 V
D. 277 V
Rationale: Typical residential branch circuits operate at 120 V.
, 8. What is the function of an AFCI?
A. Protect against overload
B. Protect against arc faults
C. Protect against ground faults
D. Increase efficiency
Rationale: AFCIs detect dangerous arcing conditions that can cause fires.
9. Which wire size is required for a 20-amp copper branch circuit?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Rationale: NEC requires 12 AWG copper for 20-amp circuits.
10.What is the purpose of a bonding jumper?
A. Carry load current
B. Ensure electrical continuity between metal parts
C. Increase voltage
D. Reduce resistance
Rationale: Bonding equalizes potential between conductive parts.
11.What type of outlet is required in bathrooms?
A. Standard duplex
B. AFCI
C. GFCI-protected
D. Isolated ground
Rationale: NEC requires GFCI protection in bathrooms.
12.Which NEC article covers grounding and bonding?
A. Article 100
B. Article 250
C. Article 300
EXAMINATION QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary purpose of a grounding conductor in an electrical
system?
A. To carry normal load current
B. To increase voltage stability
C. To provide a low-impedance path for fault current
D. To reduce power consumption
Rationale: The grounding conductor safely carries fault current to ground,
allowing overcurrent devices to operate.
2. What is the color code for the equipment grounding conductor?
A. Black
B. White
C. Red
D. Green or bare
Rationale: NEC requires equipment grounding conductors to be green or
bare.
3. What is the minimum burial depth for rigid metal conduit under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
, D. 24 inches
Rationale: NEC burial depth tables specify 18 inches for rigid metal conduit
under driveways.
4. What device protects against ground faults?
A. AFCI
B. Circuit breaker
C. Fuse
D. GFCI
Rationale: GFCIs detect imbalance between hot and neutral and trip to
prevent shock.
5. What is the maximum continuous load allowed on a 20-amp circuit?
A. 20 amps
B. 16 amps
C. 18 amps
D. 15 amps
Rationale: Continuous loads are limited to 80% of circuit rating.
6. Which conductor is considered a current-carrying conductor?
A. Grounding conductor
B. Bonding jumper
C. Neutral carrying load current
D. Equipment ground
Rationale: A neutral carrying unbalanced load is considered current-
carrying.
7. What is the standard voltage for residential branch circuits in the U.S.?
A. 208 V
B. 240 V
C. 120 V
D. 277 V
Rationale: Typical residential branch circuits operate at 120 V.
, 8. What is the function of an AFCI?
A. Protect against overload
B. Protect against arc faults
C. Protect against ground faults
D. Increase efficiency
Rationale: AFCIs detect dangerous arcing conditions that can cause fires.
9. Which wire size is required for a 20-amp copper branch circuit?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Rationale: NEC requires 12 AWG copper for 20-amp circuits.
10.What is the purpose of a bonding jumper?
A. Carry load current
B. Ensure electrical continuity between metal parts
C. Increase voltage
D. Reduce resistance
Rationale: Bonding equalizes potential between conductive parts.
11.What type of outlet is required in bathrooms?
A. Standard duplex
B. AFCI
C. GFCI-protected
D. Isolated ground
Rationale: NEC requires GFCI protection in bathrooms.
12.Which NEC article covers grounding and bonding?
A. Article 100
B. Article 250
C. Article 300
