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NASCLA ACCREDITED JOURNEYMAN ELECTRICIAN EXAM
REVIEWS WITH COMPLETE ACTUAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
1. An electrician is assigned to install a new branch circuit supplying
receptacles in a commercial office. Before selecting the conductor size,
the electrician reviews the expected load, installation method, and
ambient temperature. Which factor is most critical when determining
the minimum conductor ampacity?
A. The color of the conductor insulation
B. The calculated load and applicable installation conditions
C. The manufacturer's panelboard warranty
D. The number of receptacle faceplates
Answer: B
Rationale: Conductor ampacity should be selected based on the
calculated electrical load while considering installation conditions
such as ambient temperature and conductor grouping.
2. During a routine inspection, an electrician discovers that several
metal junction boxes are not bonded to the equipment grounding
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conductor. What is the primary purpose of bonding these metal
enclosures?
A. To reduce voltage drop
B. To provide a low-impedance path for fault current
C. To increase available fault current
D. To improve lighting efficiency
Answer: B
Rationale: Bonding provides a continuous, low-impedance path that
allows protective devices to operate quickly during a ground fault.
3. While troubleshooting a three-phase motor, an electrician
determines that the motor rotates in the wrong direction. Which
corrective action should be performed first?
A. Replace the overload relay.
B. Reverse any two phase conductors.
C. Replace the motor.
D. Increase the breaker size.
Answer: B
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Rationale: Reversing any two phase conductors changes the direction
of rotation of a three-phase motor.
4. An electrician must verify that a circuit is de-energized before
beginning maintenance. Which instrument is most appropriate?
A. Clamp ammeter
B. Voltage tester or properly rated multimeter
C. Infrared thermometer
D. Phase rotation meter
Answer: B
Rationale: A voltage tester or multimeter is used to confirm the
absence of voltage before work begins.
5. An electrical panel contains several loose conductor terminations.
What is the most likely result if these conditions are not corrected?
A. Reduced conductor resistance
B. Excessive heating and possible equipment damage
C. Increased circuit efficiency
NASCLA ACCREDITED JOURNEYMAN ELECTRICIAN EXAM
REVIEWS WITH COMPLETE ACTUAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
1. An electrician is assigned to install a new branch circuit supplying
receptacles in a commercial office. Before selecting the conductor size,
the electrician reviews the expected load, installation method, and
ambient temperature. Which factor is most critical when determining
the minimum conductor ampacity?
A. The color of the conductor insulation
B. The calculated load and applicable installation conditions
C. The manufacturer's panelboard warranty
D. The number of receptacle faceplates
Answer: B
Rationale: Conductor ampacity should be selected based on the
calculated electrical load while considering installation conditions
such as ambient temperature and conductor grouping.
2. During a routine inspection, an electrician discovers that several
metal junction boxes are not bonded to the equipment grounding
,2|Page
conductor. What is the primary purpose of bonding these metal
enclosures?
A. To reduce voltage drop
B. To provide a low-impedance path for fault current
C. To increase available fault current
D. To improve lighting efficiency
Answer: B
Rationale: Bonding provides a continuous, low-impedance path that
allows protective devices to operate quickly during a ground fault.
3. While troubleshooting a three-phase motor, an electrician
determines that the motor rotates in the wrong direction. Which
corrective action should be performed first?
A. Replace the overload relay.
B. Reverse any two phase conductors.
C. Replace the motor.
D. Increase the breaker size.
Answer: B
, 3|Page
Rationale: Reversing any two phase conductors changes the direction
of rotation of a three-phase motor.
4. An electrician must verify that a circuit is de-energized before
beginning maintenance. Which instrument is most appropriate?
A. Clamp ammeter
B. Voltage tester or properly rated multimeter
C. Infrared thermometer
D. Phase rotation meter
Answer: B
Rationale: A voltage tester or multimeter is used to confirm the
absence of voltage before work begins.
5. An electrical panel contains several loose conductor terminations.
What is the most likely result if these conditions are not corrected?
A. Reduced conductor resistance
B. Excessive heating and possible equipment damage
C. Increased circuit efficiency
