New Jersey Master Electrician Exam
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Answers, Plus Rationales/Expert
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2026/Latest Update/Instant Download
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1. 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
Answer: C
Rationale: NEC Table 300.5 requires 18 inches for rigid metal
conduit under driveways.
2. What is the maximum allowable voltage drop for branch circuits
recommended by the NEC?
A. 1%
B. 3%
C. 5%
D. 10%
Answer: B
Rationale: NEC recommends a maximum of 3% voltage drop for
branch circuits for efficiency.
,3. What type of wire is required for wet locations?
A. NM cable
B. THHN
C. THWN
D. SE cable
Answer: C
Rationale: THWN insulation is rated for wet locations.
4. What is the minimum size copper grounding electrode conductor
for a 200A service?
A. #8 AWG
B. #6 AWG
C. #4 AWG
D. #2 AWG
Answer: B
Rationale: NEC Table 250.66 specifies #6 copper for 200A
services.
5. How many conductors are permitted in a 1/2-inch EMT conduit at
40% fill?
A. 5
B. 7
C. 9
D. 12
Answer: C
Rationale: NEC Chapter 9, Table 1 and Annex C allow 9
conductors depending on size.
6. What is the minimum working clearance in front of electrical
panels?
A. 24 inches
B. 30 inches
, C. 36 inches
D. 48 inches
Answer: C
Rationale: NEC 110.26 requires 36 inches clearance.
7. What is the purpose of a bonding jumper?
A. Increase voltage
B. Provide grounding path
C. Reduce current
D. Insulate conductors
Answer: B
Rationale: Bonding jumpers ensure continuity of the grounding
path.
8. What device protects against ground-fault shock?
A. AFCI
B. GFCI
C. Breaker
D. Fuse
Answer: B
Rationale: GFCI detects imbalance between hot and neutral
currents.
9. Where are AFCIs required?
A. Bathrooms
B. Kitchens only
C. Bedrooms and living areas
D. Outdoors
Answer: C
Rationale: AFCIs protect living areas from arc faults.
10. What is the minimum height for receptacles above kitchen
countertops?
With Actual Questions & Correct
Answers, Plus Rationales/Expert
Verified For Guaranteed Pass
2026/Latest Update/Instant Download
1. 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
Answer: C
Rationale: NEC Table 300.5 requires 18 inches for rigid metal
conduit under driveways.
2. What is the maximum allowable voltage drop for branch circuits
recommended by the NEC?
A. 1%
B. 3%
C. 5%
D. 10%
Answer: B
Rationale: NEC recommends a maximum of 3% voltage drop for
branch circuits for efficiency.
,3. What type of wire is required for wet locations?
A. NM cable
B. THHN
C. THWN
D. SE cable
Answer: C
Rationale: THWN insulation is rated for wet locations.
4. What is the minimum size copper grounding electrode conductor
for a 200A service?
A. #8 AWG
B. #6 AWG
C. #4 AWG
D. #2 AWG
Answer: B
Rationale: NEC Table 250.66 specifies #6 copper for 200A
services.
5. How many conductors are permitted in a 1/2-inch EMT conduit at
40% fill?
A. 5
B. 7
C. 9
D. 12
Answer: C
Rationale: NEC Chapter 9, Table 1 and Annex C allow 9
conductors depending on size.
6. What is the minimum working clearance in front of electrical
panels?
A. 24 inches
B. 30 inches
, C. 36 inches
D. 48 inches
Answer: C
Rationale: NEC 110.26 requires 36 inches clearance.
7. What is the purpose of a bonding jumper?
A. Increase voltage
B. Provide grounding path
C. Reduce current
D. Insulate conductors
Answer: B
Rationale: Bonding jumpers ensure continuity of the grounding
path.
8. What device protects against ground-fault shock?
A. AFCI
B. GFCI
C. Breaker
D. Fuse
Answer: B
Rationale: GFCI detects imbalance between hot and neutral
currents.
9. Where are AFCIs required?
A. Bathrooms
B. Kitchens only
C. Bedrooms and living areas
D. Outdoors
Answer: C
Rationale: AFCIs protect living areas from arc faults.
10. What is the minimum height for receptacles above kitchen
countertops?