1|P age
TEXAS JOURNEYMAN ELECTRICIAN LICENSING
EXAM QUESTIONS AND CORRECT ANSWERS -
LATEST 2026
1. What is the minimum burial depth for nonmetallic-sheathed cable (Type
NM) installed underground?
A. 6 inches
B. 12 inches
C. 24 inches
D. 36 inches
The NEC requires a minimum burial depth of 24 inches for direct-buried cables
such as NM, unless otherwise protected by conduit or allowed exceptions.
2. What is the maximum number of conductors allowed in a ¾-inch EMT
conduit, size 12 AWG THHN, without exceeding fill capacity?
A. 8
B. 16
C. 12
D. 20
According to NEC Chapter 9, Table 1, conduit fill must not exceed 40%. For
¾inch EMT and 12 AWG THHN, 16 conductors is the maximum permissible.
3. Which of the following must be grounded?
A. Nonmetallic boxes
B. Metal boxes
C. Type NM cable sheathing
,2|P age
D. Wood framing
All metal enclosures must be grounded to ensure fault current has a
lowimpedance path back to the source, per NEC 250.
4. The color white or gray insulation is typically used for which conductor?
A. Grounding conductor
B. Neutral conductor
C. Hot conductor
D. Traveler conductor
White or gray indicates grounded (neutral) conductors, per NEC 200.6.
5. What is the standard voltage drop limit recommended for branch circuits
to maintain efficiency?
A. 1%
B. 3%
C. 5% (3% branch + 2% feeder)
D. 10%
The NEC Informational Note suggests a maximum of 3% voltage drop on
branch circuits and 5% total on feeders plus branch circuits for efficiency.
6. What is the ampacity of 12 AWG copper conductors with THHN insulation
at 90°C?
A. 15 amps
B. 30 amps
C. 20 amps
D. 25 amps
,3|P age
Per NEC 310.16, 12 AWG THHN at 90°C has an ampacity of 30A, though
commonly limited to 20A due to overcurrent device rules (NEC 240.4).
7. GFCI protection is required for receptacles located in which area?
A. Bedrooms
B. Bathrooms
C. Living rooms
D. Attics
NEC 210.8 requires GFCI protection for receptacles in bathrooms, kitchens,
garages, outdoor areas, and other specified locations.
8. A multiwire branch circuit must have what in common?
A. Separate neutral conductors
B. A common disconnecting means
C. Different phases
D. Separate raceways
Multiwire branch circuits require simultaneous disconnection of ungrounded
conductors, per NEC 210.4(B).
9. What type of conduit is permitted for direct burial without additional
protection?
A. EMT
B. FMC
C. PVC (Schedule 80)
D. IMC
Schedule 80 PVC is rated for direct burial and provides protection against
damage, per NEC 352.
, 4|P age
10. Which NEC article covers branch circuits?
A. Article 200
B. Article 210
C. Article 220
D. Article 240
Branch circuits are covered under NEC Article 210.
11. What is the maximum distance that NM cable must be secured within a
box or enclosure?
A. 4 inches
B. 6 inches
C. 8 inches
D. 12 inches
NEC 334.30 requires nonmetallic-sheathed cable (NM) to be secured within 8
inches of every box, cabinet, or fitting.
12. What size copper equipment grounding conductor is required for a 60-
amp circuit?
A. 12 AWG
B. 10 AWG
C. 10 AWG
D. 8 AWG
Per NEC 250.122, a 60A circuit requires a minimum 10 AWG copper grounding
conductor.
TEXAS JOURNEYMAN ELECTRICIAN LICENSING
EXAM QUESTIONS AND CORRECT ANSWERS -
LATEST 2026
1. What is the minimum burial depth for nonmetallic-sheathed cable (Type
NM) installed underground?
A. 6 inches
B. 12 inches
C. 24 inches
D. 36 inches
The NEC requires a minimum burial depth of 24 inches for direct-buried cables
such as NM, unless otherwise protected by conduit or allowed exceptions.
2. What is the maximum number of conductors allowed in a ¾-inch EMT
conduit, size 12 AWG THHN, without exceeding fill capacity?
A. 8
B. 16
C. 12
D. 20
According to NEC Chapter 9, Table 1, conduit fill must not exceed 40%. For
¾inch EMT and 12 AWG THHN, 16 conductors is the maximum permissible.
3. Which of the following must be grounded?
A. Nonmetallic boxes
B. Metal boxes
C. Type NM cable sheathing
,2|P age
D. Wood framing
All metal enclosures must be grounded to ensure fault current has a
lowimpedance path back to the source, per NEC 250.
4. The color white or gray insulation is typically used for which conductor?
A. Grounding conductor
B. Neutral conductor
C. Hot conductor
D. Traveler conductor
White or gray indicates grounded (neutral) conductors, per NEC 200.6.
5. What is the standard voltage drop limit recommended for branch circuits
to maintain efficiency?
A. 1%
B. 3%
C. 5% (3% branch + 2% feeder)
D. 10%
The NEC Informational Note suggests a maximum of 3% voltage drop on
branch circuits and 5% total on feeders plus branch circuits for efficiency.
6. What is the ampacity of 12 AWG copper conductors with THHN insulation
at 90°C?
A. 15 amps
B. 30 amps
C. 20 amps
D. 25 amps
,3|P age
Per NEC 310.16, 12 AWG THHN at 90°C has an ampacity of 30A, though
commonly limited to 20A due to overcurrent device rules (NEC 240.4).
7. GFCI protection is required for receptacles located in which area?
A. Bedrooms
B. Bathrooms
C. Living rooms
D. Attics
NEC 210.8 requires GFCI protection for receptacles in bathrooms, kitchens,
garages, outdoor areas, and other specified locations.
8. A multiwire branch circuit must have what in common?
A. Separate neutral conductors
B. A common disconnecting means
C. Different phases
D. Separate raceways
Multiwire branch circuits require simultaneous disconnection of ungrounded
conductors, per NEC 210.4(B).
9. What type of conduit is permitted for direct burial without additional
protection?
A. EMT
B. FMC
C. PVC (Schedule 80)
D. IMC
Schedule 80 PVC is rated for direct burial and provides protection against
damage, per NEC 352.
, 4|P age
10. Which NEC article covers branch circuits?
A. Article 200
B. Article 210
C. Article 220
D. Article 240
Branch circuits are covered under NEC Article 210.
11. What is the maximum distance that NM cable must be secured within a
box or enclosure?
A. 4 inches
B. 6 inches
C. 8 inches
D. 12 inches
NEC 334.30 requires nonmetallic-sheathed cable (NM) to be secured within 8
inches of every box, cabinet, or fitting.
12. What size copper equipment grounding conductor is required for a 60-
amp circuit?
A. 12 AWG
B. 10 AWG
C. 10 AWG
D. 8 AWG
Per NEC 250.122, a 60A circuit requires a minimum 10 AWG copper grounding
conductor.
