Arkansas Journeyman Electrician Exam Verified
Questions, Correct Answers, and Detailed
Explanations for Science Students||Already Graded
A+
1. According to the NEC, what is the maximum number of 14 AWG
conductors allowed in a 3/4-inch EMT conduit?
A. 7
B. 9
C. 10
D. 12
Answer: B
Rationale: NEC Chapter 9, Table 1, and Annex C indicate that a 3/4-
inch EMT can hold 9 conductors of 14 AWG.
2. What is the minimum working space in front of electrical
equipment operating at 480V?
A. 3 feet
B. 3.5 feet
C. 4 feet
D. 6 feet
Answer: C
Rationale: NEC 110.26 specifies 4 feet minimum working space for
equipment over 600V, but for 480V, a minimum of 4 feet is required.
3. A single-phase 120/240V, 3-wire branch circuit has a continuous
load of 16A. What size breaker is required?
A. 15A
B. 20A
C. 25A
,D. 30A
Answer: B
Rationale: Continuous load requires 125% of the load. 16A × 1.25 =
20A, so a 20A breaker is correct.
4. Which type of conductor insulation is rated for 90°C dry
locations?
A. THHN
B. UF
C. NM-B
D. USE
Answer: A
Rationale: THHN insulation is rated for 90°C in dry locations.
5. The NEC defines a branch circuit as:
A. The circuit from service to main panel
B. The circuit from a final overcurrent device to outlets
C. The main feeder from transformer
D. Only circuits supplying motors
Answer: B
Rationale: NEC Article 100 defines a branch circuit as the circuit from
a final overcurrent device to outlets or loads.
6. How many 12 AWG copper conductors can fit in a 1/2-inch EMT
conduit?
A. 4
B. 5
C. 6
D. 7
,Answer: C
Rationale: NEC Chapter 9, Table 1, and Annex C indicate 6 conductors
of 12 AWG in 1/2-inch EMT.
7. What is the minimum size grounding electrode conductor for a
200A service using copper?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
Answer: B
Rationale: NEC 250.66 Table specifies 4 AWG copper for 200A service.
8. For a 3-wire, 120/240V single-phase system, what color is the
neutral conductor?
A. Red
B. Black
C. White
D. Green
Answer: C
Rationale: NEC 200.6 requires the grounded (neutral) conductor to be
white or gray.
9. What is the maximum length of a flexible cord run under normal
conditions before voltage drop becomes a concern?
A. 25 feet
B. 50 feet
C. 75 feet
D. 100 feet
, Answer: B
Rationale: Voltage drop should not exceed 3% for branch circuits; 50
feet is a typical guideline for flexible cords.
10. Which device is designed to protect people from electric shock?
A. Circuit breaker
B. Fuse
C. GFCI
D. Contactor
Answer: C
Rationale: Ground-Fault Circuit Interrupters (GFCI) trip when current
leakage to ground occurs, protecting humans.
11. What is the NEC abbreviation “MC” for?
A. Metal conduit
B. Motor control
C. Metal-clad cable
D. Main conductor
Answer: C
Rationale: MC stands for Metal-Clad cable.
12. In a commercial building, which lighting system is considered
continuous load?
A. Emergency lighting
B. Parking lot lighting
C. Exit sign lighting
D. Security lighting on timers
Answer: B
Questions, Correct Answers, and Detailed
Explanations for Science Students||Already Graded
A+
1. According to the NEC, what is the maximum number of 14 AWG
conductors allowed in a 3/4-inch EMT conduit?
A. 7
B. 9
C. 10
D. 12
Answer: B
Rationale: NEC Chapter 9, Table 1, and Annex C indicate that a 3/4-
inch EMT can hold 9 conductors of 14 AWG.
2. What is the minimum working space in front of electrical
equipment operating at 480V?
A. 3 feet
B. 3.5 feet
C. 4 feet
D. 6 feet
Answer: C
Rationale: NEC 110.26 specifies 4 feet minimum working space for
equipment over 600V, but for 480V, a minimum of 4 feet is required.
3. A single-phase 120/240V, 3-wire branch circuit has a continuous
load of 16A. What size breaker is required?
A. 15A
B. 20A
C. 25A
,D. 30A
Answer: B
Rationale: Continuous load requires 125% of the load. 16A × 1.25 =
20A, so a 20A breaker is correct.
4. Which type of conductor insulation is rated for 90°C dry
locations?
A. THHN
B. UF
C. NM-B
D. USE
Answer: A
Rationale: THHN insulation is rated for 90°C in dry locations.
5. The NEC defines a branch circuit as:
A. The circuit from service to main panel
B. The circuit from a final overcurrent device to outlets
C. The main feeder from transformer
D. Only circuits supplying motors
Answer: B
Rationale: NEC Article 100 defines a branch circuit as the circuit from
a final overcurrent device to outlets or loads.
6. How many 12 AWG copper conductors can fit in a 1/2-inch EMT
conduit?
A. 4
B. 5
C. 6
D. 7
,Answer: C
Rationale: NEC Chapter 9, Table 1, and Annex C indicate 6 conductors
of 12 AWG in 1/2-inch EMT.
7. What is the minimum size grounding electrode conductor for a
200A service using copper?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
Answer: B
Rationale: NEC 250.66 Table specifies 4 AWG copper for 200A service.
8. For a 3-wire, 120/240V single-phase system, what color is the
neutral conductor?
A. Red
B. Black
C. White
D. Green
Answer: C
Rationale: NEC 200.6 requires the grounded (neutral) conductor to be
white or gray.
9. What is the maximum length of a flexible cord run under normal
conditions before voltage drop becomes a concern?
A. 25 feet
B. 50 feet
C. 75 feet
D. 100 feet
, Answer: B
Rationale: Voltage drop should not exceed 3% for branch circuits; 50
feet is a typical guideline for flexible cords.
10. Which device is designed to protect people from electric shock?
A. Circuit breaker
B. Fuse
C. GFCI
D. Contactor
Answer: C
Rationale: Ground-Fault Circuit Interrupters (GFCI) trip when current
leakage to ground occurs, protecting humans.
11. What is the NEC abbreviation “MC” for?
A. Metal conduit
B. Motor control
C. Metal-clad cable
D. Main conductor
Answer: C
Rationale: MC stands for Metal-Clad cable.
12. In a commercial building, which lighting system is considered
continuous load?
A. Emergency lighting
B. Parking lot lighting
C. Exit sign lighting
D. Security lighting on timers
Answer: B
