MONTANA DEPARTMENT OF LABOR AND
INDUSTRY MASTER ELECTRICIAN
EXAMINATION (MEE) - 100 PRACTICE
QUESTIONS
NEC CODE & DEFINITIONS
1. What does NEC stand for?
A) National Energy Council
B) National Electrical Code
C) New Electric Circuit
D) North Energy Code
Answer: B. National Electrical Code
The NEC sets safety standards for electrical installations and
is the primary reference for the Montana Master Electrician
Examination . The NEC is sponsored by the National Fire
Protection Association (NFPA) .
,2. Which NEC article defines the basic definitions of
voltage, current, resistance, and power?
A) Article 100
B) Article 210
C) Article 310
D) Article 430
Answer: A. Article 100
Article 100 provides the foundational definitions used
throughout the National Electrical Code, including electrical
theory terms .
3. What is the purpose of bonding?
A) Increase voltage
B) Reduce resistance
C) Ensure electrical continuity
D) Provide insulation
Answer: C. Ensure electrical continuity
Bonding connects metal parts to maintain the same electrical
potential, ensuring a low-impedance path for fault current and
reducing shock hazards .
,4. 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. 36 inches
NEC requires 36 inches (3 feet) of working clearance in front
of electrical equipment to ensure safe maintenance access .
5. Which NEC article covers the requirements for
grounding electrode conductors?
A) Article 250.64
B) Article 250.66
C) Article 250.68
D) Article 250.70
Answer: B. Article 250.66
Article 250.66 specifies sizing requirements for grounding
electrode conductors based on the service entrance conductor
size .
, 6. Which NEC article governs the installation of surge
protective devices?
A) Article 240
B) Article 250
C) Article 285
D) Article 300
Answer: C. Article 285
Article 285 covers surge protection requirements for dwelling
units and other occupancies .
WIRING METHODS & MATERIALS
7. 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: B. 12 inches
INDUSTRY MASTER ELECTRICIAN
EXAMINATION (MEE) - 100 PRACTICE
QUESTIONS
NEC CODE & DEFINITIONS
1. What does NEC stand for?
A) National Energy Council
B) National Electrical Code
C) New Electric Circuit
D) North Energy Code
Answer: B. National Electrical Code
The NEC sets safety standards for electrical installations and
is the primary reference for the Montana Master Electrician
Examination . The NEC is sponsored by the National Fire
Protection Association (NFPA) .
,2. Which NEC article defines the basic definitions of
voltage, current, resistance, and power?
A) Article 100
B) Article 210
C) Article 310
D) Article 430
Answer: A. Article 100
Article 100 provides the foundational definitions used
throughout the National Electrical Code, including electrical
theory terms .
3. What is the purpose of bonding?
A) Increase voltage
B) Reduce resistance
C) Ensure electrical continuity
D) Provide insulation
Answer: C. Ensure electrical continuity
Bonding connects metal parts to maintain the same electrical
potential, ensuring a low-impedance path for fault current and
reducing shock hazards .
,4. 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. 36 inches
NEC requires 36 inches (3 feet) of working clearance in front
of electrical equipment to ensure safe maintenance access .
5. Which NEC article covers the requirements for
grounding electrode conductors?
A) Article 250.64
B) Article 250.66
C) Article 250.68
D) Article 250.70
Answer: B. Article 250.66
Article 250.66 specifies sizing requirements for grounding
electrode conductors based on the service entrance conductor
size .
, 6. Which NEC article governs the installation of surge
protective devices?
A) Article 240
B) Article 250
C) Article 285
D) Article 300
Answer: C. Article 285
Article 285 covers surge protection requirements for dwelling
units and other occupancies .
WIRING METHODS & MATERIALS
7. 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: B. 12 inches
