NEW MEXICO EE98 ELECTRICAL CONTRACTOR EXAM
PRACTICE TEST Newest (2026 Update) Actual Practice
Questions – Set 100 Most Common Exam Questions And
Answers In Details 100% Verified Exam Highly
Recommendable For Grade A+
1. A 120V branch circuit supplies a continuous load of 12 amps. What is the
minimum circuit rating required?
A. 12A
B. 15A
C. 20A
D. 30A
✔ Correct Answer: [C. 20A]
Rationale: Continuous loads must be sized at 125% of load; 12A × 1.25 = 15A
minimum, next standard size is 20A.
2. According to NEC, what is the maximum number of 14 AWG copper
conductors allowed in a ½-inch EMT conduit (approximate)?
A. 6
B. 9
C. 12
D. 16
✔ Correct Answer: [B. 9]
Rationale: Conduit fill tables limit ½-inch EMT to about nine 14 AWG conductors
depending on insulation type.
3. What is the minimum working clearance in front of 120/240V panelboards?
A. 2 feet
B. 3 feet
, C. 4 feet
D. 6 feet
✔ Correct Answer: [B. 3 feet]
Rationale: NEC 110.26 requires 3 feet minimum working clearance for 0–150V to
ground systems.
4. A 240V load draws 18 amps. What is the minimum wire size (copper
THHN)?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
✔ Correct Answer: [B. 12 AWG]
Rationale: 12 AWG copper is rated for 20A, sufficient for 18A load under standard
conditions.
5. Which device protects against ground-fault currents in dwelling unit
bathrooms?
A. AFCI
B. GFCI
C. Disconnect switch
D. Surge protector
✔ Correct Answer: [B. GFCI]
Rationale: GFCI devices protect personnel from ground-fault shock hazards.
6. What is the maximum voltage drop recommended for branch circuits?
A. 1%
B. 3%
C. 5%
D. 10%
, ✔ Correct Answer: [B. 3%]
Rationale: NEC recommends 3% maximum voltage drop for branch circuits for
efficiency and performance.
7. A 1 HP motor at 240V typically draws approximately:
A. 2A
B. 4A
C. 6A
D. 10A
✔ Correct Answer: [C. 6A]
Rationale: Full-load current for 1 HP at 240V is approximately 4.8–6.4 amps
depending on motor type.
8. What is the minimum size grounding electrode conductor for a 200A
service?
A. 6 AWG copper
B. 4 AWG copper
C. 2 AWG copper
D. 1/0 copper
✔ Correct Answer: [B. 4 AWG copper]
Rationale: NEC Table 250.66 requires 4 AWG copper for services up to 200A
depending on electrode type.
9. When is AFCI protection required in dwelling units?
A. Kitchens only
B. Bathrooms only
C. Bedrooms and living areas
D. Outdoors only
✔ Correct Answer: [C. Bedrooms and living areas]
Rationale: AFCI protection is required in most dwelling unit habitable rooms per
NEC 210.12.
PRACTICE TEST Newest (2026 Update) Actual Practice
Questions – Set 100 Most Common Exam Questions And
Answers In Details 100% Verified Exam Highly
Recommendable For Grade A+
1. A 120V branch circuit supplies a continuous load of 12 amps. What is the
minimum circuit rating required?
A. 12A
B. 15A
C. 20A
D. 30A
✔ Correct Answer: [C. 20A]
Rationale: Continuous loads must be sized at 125% of load; 12A × 1.25 = 15A
minimum, next standard size is 20A.
2. According to NEC, what is the maximum number of 14 AWG copper
conductors allowed in a ½-inch EMT conduit (approximate)?
A. 6
B. 9
C. 12
D. 16
✔ Correct Answer: [B. 9]
Rationale: Conduit fill tables limit ½-inch EMT to about nine 14 AWG conductors
depending on insulation type.
3. What is the minimum working clearance in front of 120/240V panelboards?
A. 2 feet
B. 3 feet
, C. 4 feet
D. 6 feet
✔ Correct Answer: [B. 3 feet]
Rationale: NEC 110.26 requires 3 feet minimum working clearance for 0–150V to
ground systems.
4. A 240V load draws 18 amps. What is the minimum wire size (copper
THHN)?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
✔ Correct Answer: [B. 12 AWG]
Rationale: 12 AWG copper is rated for 20A, sufficient for 18A load under standard
conditions.
5. Which device protects against ground-fault currents in dwelling unit
bathrooms?
A. AFCI
B. GFCI
C. Disconnect switch
D. Surge protector
✔ Correct Answer: [B. GFCI]
Rationale: GFCI devices protect personnel from ground-fault shock hazards.
6. What is the maximum voltage drop recommended for branch circuits?
A. 1%
B. 3%
C. 5%
D. 10%
, ✔ Correct Answer: [B. 3%]
Rationale: NEC recommends 3% maximum voltage drop for branch circuits for
efficiency and performance.
7. A 1 HP motor at 240V typically draws approximately:
A. 2A
B. 4A
C. 6A
D. 10A
✔ Correct Answer: [C. 6A]
Rationale: Full-load current for 1 HP at 240V is approximately 4.8–6.4 amps
depending on motor type.
8. What is the minimum size grounding electrode conductor for a 200A
service?
A. 6 AWG copper
B. 4 AWG copper
C. 2 AWG copper
D. 1/0 copper
✔ Correct Answer: [B. 4 AWG copper]
Rationale: NEC Table 250.66 requires 4 AWG copper for services up to 200A
depending on electrode type.
9. When is AFCI protection required in dwelling units?
A. Kitchens only
B. Bathrooms only
C. Bedrooms and living areas
D. Outdoors only
✔ Correct Answer: [C. Bedrooms and living areas]
Rationale: AFCI protection is required in most dwelling unit habitable rooms per
NEC 210.12.
