Preview Questions Electrician | Role Specific Skill

Question 1: What is the required method of bonding for metal conduit in electrical installations according to the NEC?

Which action should you take?

Choose only one option

Bonding the conduit with a screw to the wall

Bonding the conduit directly to the panel

Bonding the conduit to the ground system using a separate ground wire

Bonding the conduit with a metal strap to the electrical box

Question 2: How should an Electrician account for ambient temperature when designing a circuit in an industrial environment?

Which action should you take?

Choose only one option

Use standard circuit design without any consideration for environmental factors

Use only the maximum allowable wire size without considering temperature

Ignore temperature as it has no effect on circuit performance

Adjust the wire size and circuit protection to account for the higher resistance caused by elevated ambient temperatures, as per code guidelines

Question 3: How does the NEC specify the minimum depth for installing underground feeder (UF) cable in a residential setting?

Which action should you take?

Choose only one option

At least 24 inches

At least 18 inches

At least 12 inches

At least 36 inches

Question 4: How can an Electrician troubleshoot a motor that starts and then immediately stops?

Which action should you take?

Choose only one option

Replace the motor immediately

Skip checking the overload protection and focus on the wiring

Check the start capacitor, overload protection, and inspect the motor windings for any faults or damage

Continue testing the motor without checking for external components

Question 5: When troubleshooting a tripped circuit breaker, which of the following is the most likely cause?

Which action should you take?

Choose only one option

Incorrect breaker size

Faulty ground connection

Overloaded circuit or short circuit

Insufficient insulation

Question 6: According to NEC 300.5, how deep must underground residential service entrance conductors be buried?

Which action should you take?

Choose only one option

18 inches

12 inches

36 inches

24 inches