Texas Journeyman Electrician Practice
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What is the minimum burial depth for a direct-buried cable under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Direct burial cable under driveways must be at least 18 inches deep
per NEC Table 300.5.
2. What is the ampacity of a 4 AWG THHN copper conductor in a
raceway at 75°C?
A. 70 amps
B. 85 amps
C. 95 amps
D. 100 amps
According to NEC Table 310.16, 4 AWG THHN copper at 75°C has an
ampacity of 85 amps.
,3. How many 12 AWG THHN conductors can be installed in a ¾-inch EMT
conduit?
A. 9
B. 16
C. 12
D. 20
According to NEC Chapter 9, Table 1 and Annex C, Table C.1, a ¾-inch
EMT can hold up to 16 12 AWG THHN conductors.
4. Which of the following circuits must be GFCI protected?
A. Living room outlets
B. Garage outlets
C. Bedroom outlets
D. Dining room outlets
Per NEC 210.8(A), garage outlets must be GFCI protected.
5. What is the maximum height for a residential service disconnect
switch?
A. 5 feet
B. 6 feet 7 inches
C. 6 feet
D. 7 feet
NEC 230.70(A)(1) limits the height of the service disconnecting means
to no more than 6 feet 7 inches above the floor.
6. A 120V, 20A branch circuit must have conductors with a minimum
ampacity of:
A. 12 amps
B. 14 amps
C. 20 amps
D. 15 amps
, The conductor ampacity must match or exceed the circuit rating,
which is 20 amps in this case.
7. Where are tamper-resistant receptacles required?
A. Kitchens only
B. All areas of dwelling units
C. Bathrooms only
D. Bedrooms only
Per NEC 406.12, tamper-resistant receptacles are required in all areas
of dwelling units.
8. How far must a receptacle be installed from a bathroom sink basin?
A. Within 6 feet
B. Within 4 feet
C. Within 3 feet
D. Within 2 feet
NEC 210.52(D) requires a receptacle to be located within 3 feet of the
outside edge of the basin.
9. What color must the grounded (neutral) conductor be?
A. Green
B. White or gray
C. Black
D. Red
NEC 200.6 specifies that the grounded conductor must be white or
gray.
10. What is the standard voltage drop recommendation for feeders
or branch circuits?
A. 10%
B. 5%
C. 3%
D. 2%
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What is the minimum burial depth for a direct-buried cable under a
residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Direct burial cable under driveways must be at least 18 inches deep
per NEC Table 300.5.
2. What is the ampacity of a 4 AWG THHN copper conductor in a
raceway at 75°C?
A. 70 amps
B. 85 amps
C. 95 amps
D. 100 amps
According to NEC Table 310.16, 4 AWG THHN copper at 75°C has an
ampacity of 85 amps.
,3. How many 12 AWG THHN conductors can be installed in a ¾-inch EMT
conduit?
A. 9
B. 16
C. 12
D. 20
According to NEC Chapter 9, Table 1 and Annex C, Table C.1, a ¾-inch
EMT can hold up to 16 12 AWG THHN conductors.
4. Which of the following circuits must be GFCI protected?
A. Living room outlets
B. Garage outlets
C. Bedroom outlets
D. Dining room outlets
Per NEC 210.8(A), garage outlets must be GFCI protected.
5. What is the maximum height for a residential service disconnect
switch?
A. 5 feet
B. 6 feet 7 inches
C. 6 feet
D. 7 feet
NEC 230.70(A)(1) limits the height of the service disconnecting means
to no more than 6 feet 7 inches above the floor.
6. A 120V, 20A branch circuit must have conductors with a minimum
ampacity of:
A. 12 amps
B. 14 amps
C. 20 amps
D. 15 amps
, The conductor ampacity must match or exceed the circuit rating,
which is 20 amps in this case.
7. Where are tamper-resistant receptacles required?
A. Kitchens only
B. All areas of dwelling units
C. Bathrooms only
D. Bedrooms only
Per NEC 406.12, tamper-resistant receptacles are required in all areas
of dwelling units.
8. How far must a receptacle be installed from a bathroom sink basin?
A. Within 6 feet
B. Within 4 feet
C. Within 3 feet
D. Within 2 feet
NEC 210.52(D) requires a receptacle to be located within 3 feet of the
outside edge of the basin.
9. What color must the grounded (neutral) conductor be?
A. Green
B. White or gray
C. Black
D. Red
NEC 200.6 specifies that the grounded conductor must be white or
gray.
10. What is the standard voltage drop recommendation for feeders
or branch circuits?
A. 10%
B. 5%
C. 3%
D. 2%
