MASTER ELECTRICIAN LICENSING EXAM
QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To set utility company standards
B. To provide design recommendations
C. To safeguard persons and property from electrical hazards
D. To regulate electrical pricing
Answer: C
Rationale: The NEC’s stated purpose is practical safeguarding of people and
property from hazards arising from electricity use.
2. Which NEC article covers general requirements for grounding and bonding?
A. Article 100
B. Article 210
C. Article 250
D. Article 300
Answer: C
Rationale: Article 250 specifically addresses grounding and bonding
requirements.
3. What is the minimum working space depth required in front of electrical
equipment rated 600 V or less?
, A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
Rationale: NEC requires a minimum of 36 inches of clear working space.
4. Which conductor is permitted to be bare?
A. Ungrounded conductor
B. Grounded conductor
C. Equipment grounding conductor
D. Neutral conductor
Answer: C
Rationale: Equipment grounding conductors may be bare, insulated, or covered.
5. What color insulation is typically used for grounding conductors?
A. White
B. Gray
C. Red
D. Green or green with yellow stripes
Answer: D
Rationale: NEC identifies green or green/yellow as grounding conductor colors.
6. Which NEC article governs branch circuits?
A. Article 220
B. Article 210
C. Article 225
D. Article 230
Answer: B
Rationale: Article 210 covers branch circuit requirements.
, 7. A continuous load is defined as one expected to run for how long?
A. 1 hour
B. 2 hours
C. 3 hours or more
D. 4 hours
Answer: C
Rationale: NEC defines continuous loads as operating for 3 hours or more.
8. Branch-circuit conductors supplying a continuous load must be sized at
what percentage of the load?
A. 100%
B. 110%
C. 125%
D. 150%
Answer: C
Rationale: NEC requires conductors to be sized at 125% of continuous loads.
9. What is the standard voltage for residential single-phase service in the U.S.?
A. 120 V
B. 120/240 V
C. 208 V
D. 277/480 V
Answer: B
Rationale: Typical residential service is 120/240 volts single-phase.
10.Which NEC article covers services?
A. Article 215
B. Article 220
QUESTION AND CORRECT
ANSWERS(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A INSTANT
DOWNLOAD PDF
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To set utility company standards
B. To provide design recommendations
C. To safeguard persons and property from electrical hazards
D. To regulate electrical pricing
Answer: C
Rationale: The NEC’s stated purpose is practical safeguarding of people and
property from hazards arising from electricity use.
2. Which NEC article covers general requirements for grounding and bonding?
A. Article 100
B. Article 210
C. Article 250
D. Article 300
Answer: C
Rationale: Article 250 specifically addresses grounding and bonding
requirements.
3. What is the minimum working space depth required in front of electrical
equipment rated 600 V or less?
, A. 24 inches
B. 36 inches
C. 42 inches
D. 48 inches
Answer: B
Rationale: NEC requires a minimum of 36 inches of clear working space.
4. Which conductor is permitted to be bare?
A. Ungrounded conductor
B. Grounded conductor
C. Equipment grounding conductor
D. Neutral conductor
Answer: C
Rationale: Equipment grounding conductors may be bare, insulated, or covered.
5. What color insulation is typically used for grounding conductors?
A. White
B. Gray
C. Red
D. Green or green with yellow stripes
Answer: D
Rationale: NEC identifies green or green/yellow as grounding conductor colors.
6. Which NEC article governs branch circuits?
A. Article 220
B. Article 210
C. Article 225
D. Article 230
Answer: B
Rationale: Article 210 covers branch circuit requirements.
, 7. A continuous load is defined as one expected to run for how long?
A. 1 hour
B. 2 hours
C. 3 hours or more
D. 4 hours
Answer: C
Rationale: NEC defines continuous loads as operating for 3 hours or more.
8. Branch-circuit conductors supplying a continuous load must be sized at
what percentage of the load?
A. 100%
B. 110%
C. 125%
D. 150%
Answer: C
Rationale: NEC requires conductors to be sized at 125% of continuous loads.
9. What is the standard voltage for residential single-phase service in the U.S.?
A. 120 V
B. 120/240 V
C. 208 V
D. 277/480 V
Answer: B
Rationale: Typical residential service is 120/240 volts single-phase.
10.Which NEC article covers services?
A. Article 215
B. Article 220
