MAINE MASTER ELECTRICIAN EXAM – QUESTIONS
AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS
| LATEST EXAM UPDATE
Core Domains
National Electrical Code (NEC) Requirements
Maine State Internal Rules and Statutes
Electrical Calculations and Ohms Law
Motors, Transformers, and Industrial Controls
Overcurrent Protection and Grounding
Special Occupancies and Equipment
Life Safety and Fire Alarm Systems
Renewable Energy Systems and Storage
Supervision and Project Management Ethics
Introduction
The Maine Master Electrician Exam is a rigorous
assessment designed to ensure that licensed professionals
possess the advanced technical knowledge and
,managerial skills required to oversee large-scale electrical
installations. This exam evaluates a candidate’s
proficiency in the National Electrical Code, Maine-specific
legal statutes, and complex electrical theory. Through a
combination of multiple-choice questions and scenario-
based problems, candidates must demonstrate their
ability to apply regulatory standards to real-world
applications. The assessment emphasizes critical thinking,
safety compliance, and the ability to make sound ethical
decisions in high-stakes environments, ensuring all
electrical work meets the highest standards of public
safety and reliability.
SECTION ONE: QUESTIONS 1–100
1. A multi-wire branch circuit serves a commercial
kitchen. What is the requirement regarding the
disconnecting means for this circuit at the
panelboard?
,A. Only the ungrounded conductors require a
disconnect.
B. A single pole breaker with a handle tie is prohibited.
C. It must provide a means to simultaneously disconnect
all ungrounded conductors.
D. Only the neutral requires a common disconnect point.
🟢 C. It must provide a means to simultaneously
disconnect all ungrounded conductors.
🔴 Explanation: According to NEC 210.4(B), each multi-
wire branch circuit shall be provided with a means that
will simultaneously disconnect all ungrounded
conductors at the point where the branch circuit
originates to prevent electric shock during maintenance.
2. In a Maine residential installation, what is the
maximum distance a receptacle can be from a door
or fireplace before a new receptacle is required
along a continuous wall space?
, A. 2 feet
B. 6 feet
C. 10 feet
D. 12 feet
🟢 B. 6 feet
🔴 Explanation: NEC 210.52(A)(1) requires that
receptacles be installed such that no point measured
horizontally along the floor line of any wall space is
more than 6 feet from a receptacle outlet.
3. Which of the following is the minimum size copper
grounding electrode conductor for a service with
3/0 AWG copper service-entrance conductors?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
🟢 B. 4 AWG
AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS
| LATEST EXAM UPDATE
Core Domains
National Electrical Code (NEC) Requirements
Maine State Internal Rules and Statutes
Electrical Calculations and Ohms Law
Motors, Transformers, and Industrial Controls
Overcurrent Protection and Grounding
Special Occupancies and Equipment
Life Safety and Fire Alarm Systems
Renewable Energy Systems and Storage
Supervision and Project Management Ethics
Introduction
The Maine Master Electrician Exam is a rigorous
assessment designed to ensure that licensed professionals
possess the advanced technical knowledge and
,managerial skills required to oversee large-scale electrical
installations. This exam evaluates a candidate’s
proficiency in the National Electrical Code, Maine-specific
legal statutes, and complex electrical theory. Through a
combination of multiple-choice questions and scenario-
based problems, candidates must demonstrate their
ability to apply regulatory standards to real-world
applications. The assessment emphasizes critical thinking,
safety compliance, and the ability to make sound ethical
decisions in high-stakes environments, ensuring all
electrical work meets the highest standards of public
safety and reliability.
SECTION ONE: QUESTIONS 1–100
1. A multi-wire branch circuit serves a commercial
kitchen. What is the requirement regarding the
disconnecting means for this circuit at the
panelboard?
,A. Only the ungrounded conductors require a
disconnect.
B. A single pole breaker with a handle tie is prohibited.
C. It must provide a means to simultaneously disconnect
all ungrounded conductors.
D. Only the neutral requires a common disconnect point.
🟢 C. It must provide a means to simultaneously
disconnect all ungrounded conductors.
🔴 Explanation: According to NEC 210.4(B), each multi-
wire branch circuit shall be provided with a means that
will simultaneously disconnect all ungrounded
conductors at the point where the branch circuit
originates to prevent electric shock during maintenance.
2. In a Maine residential installation, what is the
maximum distance a receptacle can be from a door
or fireplace before a new receptacle is required
along a continuous wall space?
, A. 2 feet
B. 6 feet
C. 10 feet
D. 12 feet
🟢 B. 6 feet
🔴 Explanation: NEC 210.52(A)(1) requires that
receptacles be installed such that no point measured
horizontally along the floor line of any wall space is
more than 6 feet from a receptacle outlet.
3. Which of the following is the minimum size copper
grounding electrode conductor for a service with
3/0 AWG copper service-entrance conductors?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
🟢 B. 4 AWG
