JOURNEYMAN ELECTRICIAN PRACTICE
EXAM — NEC 2023 (SAMPLE) ACTUAL
EXAM QUESTIONS AND CORRECT
ANSWERS VERIFIED ANSWERS GRADED A+
1. What is the minimum burial depth for a direct-buried Type UF cable
under a residential driveway?
A. 12 inches
B. 18 inches
C. 24 inches
D. 30 inches
Rationale: Table 300.5(A) of the NEC 2023 requires a minimum cover
of 18 inches for direct-buried cables under residential driveways.
2. What is the maximum number of 12 AWG conductors allowed in a 4-
inch square, 1½-inch deep metal box with a volume of 21 cubic
inches?
A. 7
B. 8
C. 9
D. 10
Rationale: NEC 314.16(B) and Table 314.16(B) allocate 2.25 in³ per 12
AWG conductor. 21 ÷ 2.25 = 9 conductors.
3. A 20-ampere branch circuit supplies lighting and receptacles in a
dwelling unit bedroom. What type of protection is required?
A. GFCI only
B. AFCI only
, C. GFCI and AFCI
D. None
Rationale: NEC 210.12(A) requires AFCI protection for 120-volt, 15-
and 20-ampere branch circuits supplying outlets in dwelling unit
bedrooms.
4. Receptacles installed in bathrooms of dwelling units must have which
of the following protections?
A. AFCI only
B. GFCI only
C. Both AFCI and GFCI
D. None
Rationale: NEC 210.8(A)(1) mandates GFCI protection for all
bathroom receptacles in dwelling units.
5. What is the maximum distance a receptacle can be from a doorway in
a dwelling room so that no point along the wall is more than 6 feet
from a receptacle?
A. 10 feet
B. 8 feet
C. 4 feet
D. 6 feet
Rationale: NEC 210.52(A)(1) requires that receptacles be installed so
that no point along the wall line is more than 6 feet from a
receptacle outlet.
6. The minimum burial depth for rigid metal conduit (RMC) under a
residential driveway is:
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: Table 300.5(A) lists 6 inches as the minimum cover for
RMC or IMC under a residential driveway.
EXAM — NEC 2023 (SAMPLE) ACTUAL
EXAM QUESTIONS AND CORRECT
ANSWERS VERIFIED ANSWERS GRADED A+
1. What is the minimum burial depth for a direct-buried Type UF cable
under a residential driveway?
A. 12 inches
B. 18 inches
C. 24 inches
D. 30 inches
Rationale: Table 300.5(A) of the NEC 2023 requires a minimum cover
of 18 inches for direct-buried cables under residential driveways.
2. What is the maximum number of 12 AWG conductors allowed in a 4-
inch square, 1½-inch deep metal box with a volume of 21 cubic
inches?
A. 7
B. 8
C. 9
D. 10
Rationale: NEC 314.16(B) and Table 314.16(B) allocate 2.25 in³ per 12
AWG conductor. 21 ÷ 2.25 = 9 conductors.
3. A 20-ampere branch circuit supplies lighting and receptacles in a
dwelling unit bedroom. What type of protection is required?
A. GFCI only
B. AFCI only
, C. GFCI and AFCI
D. None
Rationale: NEC 210.12(A) requires AFCI protection for 120-volt, 15-
and 20-ampere branch circuits supplying outlets in dwelling unit
bedrooms.
4. Receptacles installed in bathrooms of dwelling units must have which
of the following protections?
A. AFCI only
B. GFCI only
C. Both AFCI and GFCI
D. None
Rationale: NEC 210.8(A)(1) mandates GFCI protection for all
bathroom receptacles in dwelling units.
5. What is the maximum distance a receptacle can be from a doorway in
a dwelling room so that no point along the wall is more than 6 feet
from a receptacle?
A. 10 feet
B. 8 feet
C. 4 feet
D. 6 feet
Rationale: NEC 210.52(A)(1) requires that receptacles be installed so
that no point along the wall line is more than 6 feet from a
receptacle outlet.
6. The minimum burial depth for rigid metal conduit (RMC) under a
residential driveway is:
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Rationale: Table 300.5(A) lists 6 inches as the minimum cover for
RMC or IMC under a residential driveway.
