Preview Questions Electrician | Role Specific Skill

Question 1: What is the correct procedure for designing a dedicated circuit for an air conditioning unit in a commercial building?

Which action should you take?

Choose only one option

Use an undersized breaker to minimize cost

Design a dedicated circuit with the correct wire size, breaker size, and grounding, ensuring the system can handle the air conditioner's electrical demands without overloading

Install a shared circuit with other equipment

Use a standard residential circuit without considering load

Question 2: In residential wiring, what is the maximum distance for a 12 AWG wire in a 120V circuit before voltage drop becomes a concern?

Which action should you take?

Choose only one option

100 feet

150 feet

50 feet

200 feet

Question 3: In accordance with NEC 310, what is the minimum size wire required for a 20-amp residential circuit?

Which action should you take?

Choose only one option

12 AWG

8 AWG

10 AWG

14 AWG

Question 4: When installing an electrical panel, how should an Electrician ensure proper wire connections?

Which action should you take?

Choose only one option

Ensure that wire sizes match the panel's terminal capacity, and that wires are securely connected and labeled for easy identification

Install wires without checking for proper connection to terminals

Ignore panel capacity and use any available wire size

Use undersized wires to minimize cost

Question 5: Which NEC section defines the requirements for using a ground-fault circuit interrupter (GFCI) in bathrooms?

Which action should you take?

Choose only one option

NEC 210

NEC 300

NEC 410

NEC 250

Question 6: What is the correct method for installing ground-fault circuit interrupters (GFCIs) in wet locations?

Which action should you take?

Choose only one option

Install GFCIs in areas exposed to water, such as bathrooms and kitchens, and ensure the wiring follows the manufacturer's guidelines

Install GFCIs only in the main panel

Ignore GFCIs in wet locations

Install GFCIs anywhere without considering the location