MAINE MASTER ELECTRICIAN EXAM QUESTIONS
FORM A REAL EXAM LATEST 2026-2027 UPDATE
WITH 100 QUESTIONS & 100% CORRECT DETAILED
ANSWERS GRADED A+ (BRAND NEW!!)
1. What is the primary responsibility of a Master Electrician under Maine law?
A. Performing only residential wiring
B. Supervising apprentices only
C. Being responsible for the design, installation, and compliance of
electrical work
D. Issuing electrical permits
The Master Electrician is legally responsible for code compliance, supervision, and
overall electrical work.
2. Which NEC article covers grounding and bonding requirements?
A. Article 210
B. Article 215
C. Article 250
D. Article 300
Article 250 establishes grounding electrode systems, bonding, and fault-current
paths.
3. What is the minimum size copper grounding electrode conductor for a 200-
amp service?
A. 8 AWG
, B. 4 AWG
C. 2 AWG
D. 1/0 AWG
NEC Table 250.66 requires 4 AWG copper for a 200-amp service.
4. Which device is required to protect personnel from ground faults in wet
locations?
A. AFCI
B. GFCI
C. Circuit breaker
D. Isolator
GFCIs are designed to prevent shock hazards by interrupting ground-fault current.
5. What is the maximum continuous load permitted on a branch circuit?
A. 100% of rating
B. 90% of rating
C. 80% of rating
D. 70% of rating
Continuous loads must not exceed 80% of the circuit rating.
6. Which NEC article governs services?
A. Article 210
B. Article 230
C. Article 250
D. Article 300
Article 230 addresses service conductors, equipment, and disconnecting means.
, 7. What is the minimum required clearance in front of electrical panels rated
600 volts or less?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
NEC 110.26 requires 36 inches of working clearance.
8. What type of conductor insulation is suitable for wet locations?
A. NM
B. TW
C. THWN
D. NMC
THWN insulation is rated for wet locations.
9. What is the purpose of bonding?
A. To increase voltage
B. To isolate equipment
C. To ensure a low-impedance fault path
D. To reduce current
Bonding ensures fault current flows quickly to trip overcurrent devices.
10.Which NEC article covers branch circuits?
A. Article 215
B. Article 210
C. Article 225
D. Article 240
Article 210 governs branch circuit requirements.
FORM A REAL EXAM LATEST 2026-2027 UPDATE
WITH 100 QUESTIONS & 100% CORRECT DETAILED
ANSWERS GRADED A+ (BRAND NEW!!)
1. What is the primary responsibility of a Master Electrician under Maine law?
A. Performing only residential wiring
B. Supervising apprentices only
C. Being responsible for the design, installation, and compliance of
electrical work
D. Issuing electrical permits
The Master Electrician is legally responsible for code compliance, supervision, and
overall electrical work.
2. Which NEC article covers grounding and bonding requirements?
A. Article 210
B. Article 215
C. Article 250
D. Article 300
Article 250 establishes grounding electrode systems, bonding, and fault-current
paths.
3. What is the minimum size copper grounding electrode conductor for a 200-
amp service?
A. 8 AWG
, B. 4 AWG
C. 2 AWG
D. 1/0 AWG
NEC Table 250.66 requires 4 AWG copper for a 200-amp service.
4. Which device is required to protect personnel from ground faults in wet
locations?
A. AFCI
B. GFCI
C. Circuit breaker
D. Isolator
GFCIs are designed to prevent shock hazards by interrupting ground-fault current.
5. What is the maximum continuous load permitted on a branch circuit?
A. 100% of rating
B. 90% of rating
C. 80% of rating
D. 70% of rating
Continuous loads must not exceed 80% of the circuit rating.
6. Which NEC article governs services?
A. Article 210
B. Article 230
C. Article 250
D. Article 300
Article 230 addresses service conductors, equipment, and disconnecting means.
, 7. What is the minimum required clearance in front of electrical panels rated
600 volts or less?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
NEC 110.26 requires 36 inches of working clearance.
8. What type of conductor insulation is suitable for wet locations?
A. NM
B. TW
C. THWN
D. NMC
THWN insulation is rated for wet locations.
9. What is the purpose of bonding?
A. To increase voltage
B. To isolate equipment
C. To ensure a low-impedance fault path
D. To reduce current
Bonding ensures fault current flows quickly to trip overcurrent devices.
10.Which NEC article covers branch circuits?
A. Article 215
B. Article 210
C. Article 225
D. Article 240
Article 210 governs branch circuit requirements.
