Electrical Technician Interview Questions
Interviewer: Good morning, thank you for coming in today. Can you tell me about your experience as an electrical technician?
Candidate: Good morning, thank you for having me. I have worked as an electrical technician for five years now.
Interviewer: What experience do you have with troubleshooting electrical systems?
Candidate: I have troubleshooted a variety of electrical systems from basic circuits to advanced controls. I have also worked with motors and drives, programmable logic controllers (PLCs) and variable frequency drives (VFDs).
Interviewer: Can you tell me about a time when you encountered a difficult electrical problem and how you resolved it?
Candidate: Sure, I once had a circuit with a short circuit that was causing the breaker to trip repeatedly. I systematically disconnected different components to isolate the problem and ended up finding a damaged cable that needed to be replaced.
Interviewer: How would you ensure that your work is in compliance with all electrical codes and regulations?
Candidate: I would follow all applicable codes and regulations and conduct regular audits to ensure compliance.
Interviewer: Have you ever worked with high voltage systems?
Candidate: Yes, I have worked with systems up to 480 volts.
Interviewer: Do you have any experience with PLC programming?
Candidate: Yes, I have experience programming PLCs to control various processes.
Interviewer: How would you prioritize and manage your workload as an electrical technician?
Candidate: I would prioritize urgent issues and plan my workload accordingly, scheduling regular maintenance and repairs around those priorities.
Interviewer: Can you explain how you would ensure the safety of yourself and others while working with electrical systems?
Candidate: I would always wear the proper Personal Protective Equipment (PPE) and follow proper lockout/tagout (LOTO) procedures.
Interviewer: How would you approach training or mentoring new team members in your role as an electrical technician?
Candidate: I would work closely with them, reviewing the electrical systems they’ll be working with, and ensuring they have the correct PPE as well as the knowledge base and experience needed to handle them safely.
Interviewer: What electrical testing equipment are you proficient in using?
Candidate: I'm proficient in using multimeters, oscilloscopes, and just about any other common electrical testing equipment.
Interviewer: How do you keep up-to-date with the latest industry trends?
Candidate: I attend industry conferences, webinars, and read relevant blogs and publications.
Interviewer: Do you have experience working in a team-oriented environment?
Candidate: Yes, I have worked in many team-oriented settings and believe in openly communicating with team members, which can address any electrical issues or potential hazards.
Interviewer: What are your salary expectations for this position?
Candidate: I'm really interested in working for this company and would appreciate an offer and discussing salary at that time.
Interviewer: What are your long-term career goals?
Candidate: My long-term career goal is to continue to grow and expand my electrical knowledge, potentially moving into management or leadership positions.
Interviewer: Thank you for taking the time to interview today. We will be in touch shortly.
Candidate: Thank you for having me. It was a pleasure.
1. Scenario: You are tasked with repairing a malfunctioning electrical circuit in a busy manufacturing facility. It is critical to get the circuit back online as soon as possible to prevent any further delays in production. Walk us through your troubleshooting process in this scenario.
Candidate Answer: First, I would assess the situation and identify the malfunctioning component. Then, I would use my multimeter to test and confirm the fault. Once I have identified the issue, I would either repair or replace the faulty component to restore the circuit's functionality.
2. Scenario: You are tasked with installing a new electrical system in a residential home. The home is over 50 years old, and there are no current electrical plans available. What steps would you take to ensure the safe and proper installation of the new system?
Candidate Answer: Firstly, I would conduct a thorough inspection of the home's electrical system to identify any potential hazards. Then, I would determine the power requirements for the new system, taking into account the homeowner's needs and the electrical load of the house. Afterward, I would create a detailed plan for the installation and seek input from the homeowner before installation.
3. Scenario: A commercial building's lighting system has stopped functioning. What steps do you take to diagnose and fix the issue?
Candidate Answer: First, I would check the circuit breaker to see if it has tripped or is malfunctioning. If that's not the issue, I would ensure that the bulbs are not faulty, then test the light switch to ensure there is power coming from the switch. If that's still not the issue, I would test the wiring and connections in the lighting system to identify any shorts, breaks, or inconsistencies.
4. Scenario: You are tasked with repairing a motor control center that has failed. The MCC powers a critical component in a pharmaceutical manufacturing plant, and downtime can result in significant financial losses. What steps do you take to complete the repair safely and quickly?
Candidate Answer: Firstly, I would assess the severity of the issue and identify the faulty component(s). Secondly, I would ensure that I have all the necessary tools and parts required for the repair. Then, I would follow proper lockout/tag-out procedures and safely de-energize the system before beginning any repairs. I would then repair or replace the damaged component and conduct thorough testing to confirm that the MCC is functioning as intended.
5. Scenario: You are tasked with analyzing and troubleshooting a malfunctioning HVAC system in a large commercial building. What steps do you take to diagnose and fix the issue?
Candidate Answer: The first step would be to observe and listen to the system, identifying any unusual sounds or physical abnormalities. Then, I would check the system's thermostat function and filter condition before examining the compressor and examining refrigerant levels. After such analysis, I would diagnose and repair any faulty wires, connections, or components.