Preview Questions Electrician | Role Specific Skill

Question 1: According to the NEC, which of the following is NOT a requirement for receptacles in wet locations?

Which action should you take?

Choose only one option

They must be installed at least 12 feet above the ground

They must be weather-resistant or covered

They must be tamper-resistant

They must be GFCI (Ground Fault Circuit Interrupter)

Question 2: In a commercial building, how do you typically ensure adequate grounding of the electrical system for safety?

Which action should you take?

Choose only one option

By reducing the number of grounding points in the system

By using only insulated conductors and minimizing exposed metal

By grounding only the service panel and neutral bus

By connecting the ground conductor to a ground rod and ensuring proper bonding of all metal components

Question 3: How do you ensure that a new electrical installation complies with energy efficiency standards?

Which action should you take?

Choose only one option

By following the NEC and local codes for energy-efficient lighting and appliances

By using the smallest wire size to reduce cost

By relying on the building's insulation to minimize energy consumption

By using incandescent bulbs instead of CFL or LED lighting

Question 4: What tool is most commonly used to check for a live wire during electrical installation?

Which action should you take?

Choose only one option

A voltage tester or multimeter

A hammer

A pipe wrench

A circuit breaker

Question 5: When installing outdoor electrical circuits, what is the minimum depth requirement for direct-burial cable under soil?

Which action should you take?

Choose only one option

24 inches

18 inches

12 inches

36 inches

Question 6: In electrical installations, why is it important to separate neutral and ground wires in a subpanel?

Which action should you take?

Choose only one option

It prevents unwanted current from flowing through the grounding system, reducing shock hazards

It allows the system to function at a lower voltage

It improves the aesthetics of the panel and wiring layout

It reduces installation time by simplifying the wiring process