Top 10 Questions for Oil Burner Repairer Interview

1. Describe the steps involved in troubleshooting an oil burner that is not starting?

To troubleshoot an oil burner that is not starting, follow these steps:

• Check the power supply to the burner.
• Check the fuel supply to the burner.
• Check the ignition system.
• Check the combustion air supply.
• Check the flue system.
• Check the burner controls.

2. What are the different types of oil burners?

Residential oil burners

• Gun-type burners
• Rotary cup burners
• Vaporizing burners

Commercial oil burners

• Pressure atomizing burners
• Air atomizing burners
• Steam atomizing burners

3. What are the safety precautions that must be followed when working on oil burners?

When working on oil burners, it is important to follow these safety precautions:

• Wear appropriate personal protective equipment (PPE), including gloves, eye protection, and hearing protection.
• Ensure that the burner is turned off and disconnected from the power supply before performing any work.
• Do not smoke or use open flames near the burner.
• Be aware of the potential for oil spills and leaks.
• Have a fire extinguisher nearby in case of an emergency.

4. What are the common problems that can occur with oil burners?

Common problems that can occur with oil burners include:

• The burner will not start.
• The burner is not producing enough heat.
• The burner is producing too much smoke.
• The burner is making strange noises.
• The burner is leaking oil.

5. How do you adjust the air-fuel ratio on an oil burner?

To adjust the air-fuel ratio on an oil burner, follow these steps:

• Locate the air damper on the burner.
• Adjust the damper to increase or decrease the amount of air flowing into the burner.
• Use a combustion analyzer to measure the flue gas levels and make sure that the air-fuel ratio is correct.

6. How do you clean an oil burner?

To clean an oil burner, follow these steps:

• Turn off the burner and disconnect it from the power supply.
• Remove the burner from the furnace.
• Remove the nozzle from the burner.
• Clean the nozzle with a soft brush and solvent.
• Clean the combustion chamber and the heat exchanger with a soft brush and solvent.
• Reassemble the burner and reinstall it in the furnace.

7. How do you test an oil burner motor?

To test an oil burner motor, follow these steps:

• Disconnect the motor from the power supply.
• Use a multimeter to check the continuity of the motor windings.
• Use a megohmmeter to check the insulation resistance of the motor windings.
• If the motor windings are damaged, replace the motor.

8. How do you replace an oil filter?

To replace an oil filter, follow these steps:

• Turn off the burner and disconnect it from the power supply.
• Locate the oil filter.
• Remove the old oil filter.
• Install the new oil filter.
• Tighten the oil filter until it is snug.
• Reconnect the burner to the power supply and turn it on.

9. How do you troubleshoot a flame sensor?

To troubleshoot a flame sensor, follow these steps:

• Visually inspect the flame sensor.
• Clean the flame sensor with a soft brush.
• Check the continuity of the flame sensor.
• If the flame sensor is damaged, replace it.

10. How do you service an oil burner?

To service an oil burner, follow these steps:

• Inspect the burner for any damage.
• Clean the burner and the heat exchanger.
• Check the air-fuel ratio.
• Test the motor.
• Replace the oil filter.
• Lubricate the moving parts.
• Perform a combustion test.

Oil Burner Repairers are responsible for installing, maintaining, and repairing oil burners and related equipment. They must be familiar with the National Fire Protection Association (NFPA) code and be able to work independently following blueprints and schematics.

1. Installation and Maintenance

Oil Burner Repairers install new oil burners and related equipment. They also perform regular maintenance on existing systems to ensure they are operating safely and efficiently.

• Install oil burners and related equipment according to blueprints and schematics.
• Perform regular maintenance on oil burners, including cleaning, adjusting, and replacing parts.
• Inspect oil burners and related equipment for signs of wear and tear, and make necessary repairs.

2. Troubleshooting and Repair

Oil Burner Repairers troubleshoot and repair oil burners and related equipment. They must be able to diagnose problems quickly and accurately, and make repairs using the appropriate tools and techniques.

• Diagnose problems with oil burners and related equipment, including electrical, mechanical, and combustion issues.
• Repair oil burners and related equipment using the appropriate tools and techniques.
• Test and adjust oil burners and related equipment to ensure they are operating safely and efficiently.

3. Safety

Oil Burner Repairers must be aware of the safety risks associated with their work. They must follow all safety procedures and use the appropriate personal protective equipment (PPE) when working on oil burners and related equipment.

• Follow all safety procedures when working on oil burners and related equipment.
• Use appropriate personal protective equipment (PPE), including gloves, eye protection, and respiratory protection.
• Inspect oil burners and related equipment for signs of wear and tear, and make necessary repairs to ensure they are operating safely.

4. Communication

Oil Burner Repairers must be able to communicate effectively with customers and other workers. They must be able to explain technical concepts to non-technical people, and they must be able to work as part of a team.

• Communicate effectively with customers and other workers, both verbally and in writing.
• Explain technical concepts to non-technical people in a clear and concise manner.
• Work as part of a team to complete projects on time and within budget.

Interviews for oil burner repair positions are similar to interviews for other skilled trade positions, but there are a few specific questions that interviewers will ask. For example, you can expect to be asked about your experience with oil burners, your knowledge of the NFPA code, and your safety procedures. By preparing for these questions, you can increase your chances of making a good impression and landing the job.

1. Research the Company and Position

Before your interview, take some time to research the company and the specific position you are applying for. This will help you understand the company’s culture and the key responsibilities of the position. You can also use this information to tailor your answers to the interviewer’s questions.

• Visit the company’s website to learn about their mission, values, and recent news.
• Read the job description carefully and identify the key responsibilities of the position.
• Research the industry and the specific job title to learn about the typical salary, benefits, and career path.

2. Practice Answering Common Interview Questions

There are a number of common interview questions that you can expect to be asked, regardless of the position you are applying for. By practicing answering these questions, you can increase your confidence and delivery.

• Tell me about yourself.
• Why are you interested in this position?
• What are your strengths and weaknesses?
• What are your salary expectations?
• What is your availability?

3. Prepare Questions to Ask the Interviewer

Asking the interviewer questions is a great way to show that you are interested in the position and the company. It also gives you an opportunity to learn more about the company and the position. Here are a few questions you could ask:

• What are the biggest challenges facing the company right now?
• What is the company’s culture like?
• What is the training and development process for new employees?
• What are the opportunities for career advancement?
• What is the next step in the interview process?

4. Dress Appropriately and Arrive on Time

First impressions matter, so it is important to dress appropriately for your interview. You should also arrive on time, as being late will reflect poorly on you.

• Dress in clean, pressed clothes that are appropriate for a professional setting.
• Arrive on time for your interview, or even a few minutes early.
• Be polite and respectful to everyone you meet, including the receptionist and other employees.