MISSOURI JOURNEYMAN ELECTRICIAN EXAM –
QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains
General Electrical Theory and Calculations
Wiring and Protection
Wiring Methods and Materials
Equipment for General Use
Special Occupancies and Equipment
Special Conditions and Communication Systems
Motors and Controllers
Grounding and Bonding
National Electrical Code (NEC) Compliance
Introduction
,This comprehensive assessment is designed to evaluate the
competency and readiness of candidates seeking the
Missouri Journeyman Electrician licensure. The exam
focuses on the practical application of the National
Electrical Code, safety protocols, and advanced electrical
theory necessary for safe and efficient field operations. It
consists of multiple-choice questions and complex
scenario-based problems that reflect real-world challenges
encountered by electrical professionals. Candidates are
assessed on their ability to interpret code requirements,
perform precise load calculations, and make critical
decisions regarding installation and maintenance. This
document serves as a rigorous tool to ensure that
individuals possess the essential skills and technical
knowledge required for professional practice.
1. What is the minimum clear working space depth
required for equipment operating at 600 volts to
ground where live parts are exposed on one side
and grounded parts on the other (Condition 2)?
,A. 3 feet
B. 3.5 feet
C. 4 feet
D. 5 feet
🟢 B. 3.5 feet
🔴 Explanation: According to NEC Table 110.26(A)(1), for
voltages between 151-600V to ground, Condition 2
requires a minimum depth of 3.5 feet.
2. A 120-volt branch circuit supplies a continuous load
of 16 amperes. What is the minimum size
overcurrent protection device required?
A. 15 amperes
B. 20 amperes
C. 25 amperes
D. 30 amperes
🟢 B. 20 amperes
🔴 Explanation: Continuous loads must be calculated at
125% of the load (16A x 1.25 = 20A). Therefore, a 20A
, breaker is the minimum required.
3. Which of the following is the maximum distance
between supports for 1-inch Rigid Metal Conduit
(RMC)?
A. 8 feet
B. 10 feet
C. 12 feet
D. 14 feet
🟢 B. 10 feet
🔴 Explanation: Per NEC 344.30(B)(1), RMC must
generally be supported at intervals not exceeding 10 feet.
4. A non-metallic sheathed cable (Type NM) must be
secured within how many inches of a non-metallic
box without a cable clamp?
A. 8 inches
B. 12 inches
C. 18 inches
D. 24 inches
QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains
General Electrical Theory and Calculations
Wiring and Protection
Wiring Methods and Materials
Equipment for General Use
Special Occupancies and Equipment
Special Conditions and Communication Systems
Motors and Controllers
Grounding and Bonding
National Electrical Code (NEC) Compliance
Introduction
,This comprehensive assessment is designed to evaluate the
competency and readiness of candidates seeking the
Missouri Journeyman Electrician licensure. The exam
focuses on the practical application of the National
Electrical Code, safety protocols, and advanced electrical
theory necessary for safe and efficient field operations. It
consists of multiple-choice questions and complex
scenario-based problems that reflect real-world challenges
encountered by electrical professionals. Candidates are
assessed on their ability to interpret code requirements,
perform precise load calculations, and make critical
decisions regarding installation and maintenance. This
document serves as a rigorous tool to ensure that
individuals possess the essential skills and technical
knowledge required for professional practice.
1. What is the minimum clear working space depth
required for equipment operating at 600 volts to
ground where live parts are exposed on one side
and grounded parts on the other (Condition 2)?
,A. 3 feet
B. 3.5 feet
C. 4 feet
D. 5 feet
🟢 B. 3.5 feet
🔴 Explanation: According to NEC Table 110.26(A)(1), for
voltages between 151-600V to ground, Condition 2
requires a minimum depth of 3.5 feet.
2. A 120-volt branch circuit supplies a continuous load
of 16 amperes. What is the minimum size
overcurrent protection device required?
A. 15 amperes
B. 20 amperes
C. 25 amperes
D. 30 amperes
🟢 B. 20 amperes
🔴 Explanation: Continuous loads must be calculated at
125% of the load (16A x 1.25 = 20A). Therefore, a 20A
, breaker is the minimum required.
3. Which of the following is the maximum distance
between supports for 1-inch Rigid Metal Conduit
(RMC)?
A. 8 feet
B. 10 feet
C. 12 feet
D. 14 feet
🟢 B. 10 feet
🔴 Explanation: Per NEC 344.30(B)(1), RMC must
generally be supported at intervals not exceeding 10 feet.
4. A non-metallic sheathed cable (Type NM) must be
secured within how many inches of a non-metallic
box without a cable clamp?
A. 8 inches
B. 12 inches
C. 18 inches
D. 24 inches
