JOURNEYMAN ELECTRICIAN LICENSING
EXAM QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What is the primary purpose of grounding an electrical system?
A. To increase voltage
B. To reduce current
C. To provide a safe path for fault current
D. To balance loads
Rationale: Grounding safely directs fault current to earth, reducing shock
and fire hazards.
2. Which NEC article covers grounding and bonding?
A. Article 100
B. Article 250
C. Article 300
D. Article 310
Rationale: NEC Article 250 specifically addresses grounding and bonding
requirements.
3. What is the minimum burial depth for rigid metal conduit under residential
driveways?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: NEC specifies 18 inches minimum for rigid metal conduit under
driveways.
,4. What device protects against overloads and short circuits?
A. GFCI
B. AFCI
C. Circuit breaker
D. Surge protector
Rationale: Circuit breakers are designed to interrupt current during
overloads or short circuits.
5. What is the color of the equipment grounding conductor?
A. Black
B. Red
C. White
D. Green or bare
Rationale: NEC requires grounding conductors to be green or bare.
6. What does AWG stand for?
A. Aluminum Wire Gauge
B. American Wire Gauge
C. Applied Wire Group
D. Alternating Wire Grade
Rationale: AWG is the standard system for sizing electrical conductors.
7. Which conductor size is larger?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Rationale: In AWG, smaller numbers indicate larger conductor sizes.
8. What is the maximum allowable voltage drop for branch circuits?
A. 2%
B. 3%
C. 5%
D. 10%
Rationale: NEC recommends a maximum of 3% voltage drop for branch
circuits.
, 9. Which tool is used to measure resistance?
A. Ammeter
B. Voltmeter
C. Ohmmeter
D. Wattmeter
Rationale: Resistance is measured using an ohmmeter.
10.What does a GFCI protect against?
A. Overload
B. Short circuit
C. Ground faults
D. Voltage surges
Rationale: GFCIs protect people from ground-fault shock hazards.
11.Which NEC article covers wiring methods?
A. Article 100
B. Article 250
C. Article 300
D. Article 430
Rationale: Article 300 outlines general requirements for wiring methods.
12.What is the standard residential voltage in the U.S.?
A. 120/208 V
B. 120/240 V
C. 277/480 V
D. 240/480 V
Rationale: Typical residential service is 120/240 volts.
13.What type of switch controls a light from two locations?
A. Single-pole
B. Three-way
C. Four-way
D. Double-pole
Rationale: Three-way switches allow control from two locations.
14.Which device interrupts arcing faults?
A. GFCI
B. AFCI
EXAM QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What is the primary purpose of grounding an electrical system?
A. To increase voltage
B. To reduce current
C. To provide a safe path for fault current
D. To balance loads
Rationale: Grounding safely directs fault current to earth, reducing shock
and fire hazards.
2. Which NEC article covers grounding and bonding?
A. Article 100
B. Article 250
C. Article 300
D. Article 310
Rationale: NEC Article 250 specifically addresses grounding and bonding
requirements.
3. What is the minimum burial depth for rigid metal conduit under residential
driveways?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: NEC specifies 18 inches minimum for rigid metal conduit under
driveways.
,4. What device protects against overloads and short circuits?
A. GFCI
B. AFCI
C. Circuit breaker
D. Surge protector
Rationale: Circuit breakers are designed to interrupt current during
overloads or short circuits.
5. What is the color of the equipment grounding conductor?
A. Black
B. Red
C. White
D. Green or bare
Rationale: NEC requires grounding conductors to be green or bare.
6. What does AWG stand for?
A. Aluminum Wire Gauge
B. American Wire Gauge
C. Applied Wire Group
D. Alternating Wire Grade
Rationale: AWG is the standard system for sizing electrical conductors.
7. Which conductor size is larger?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Rationale: In AWG, smaller numbers indicate larger conductor sizes.
8. What is the maximum allowable voltage drop for branch circuits?
A. 2%
B. 3%
C. 5%
D. 10%
Rationale: NEC recommends a maximum of 3% voltage drop for branch
circuits.
, 9. Which tool is used to measure resistance?
A. Ammeter
B. Voltmeter
C. Ohmmeter
D. Wattmeter
Rationale: Resistance is measured using an ohmmeter.
10.What does a GFCI protect against?
A. Overload
B. Short circuit
C. Ground faults
D. Voltage surges
Rationale: GFCIs protect people from ground-fault shock hazards.
11.Which NEC article covers wiring methods?
A. Article 100
B. Article 250
C. Article 300
D. Article 430
Rationale: Article 300 outlines general requirements for wiring methods.
12.What is the standard residential voltage in the U.S.?
A. 120/208 V
B. 120/240 V
C. 277/480 V
D. 240/480 V
Rationale: Typical residential service is 120/240 volts.
13.What type of switch controls a light from two locations?
A. Single-pole
B. Three-way
C. Four-way
D. Double-pole
Rationale: Three-way switches allow control from two locations.
14.Which device interrupts arcing faults?
A. GFCI
B. AFCI
