Oil Burner License Exam – 250 Practice Questions with Verified Correct Answers (Rated A+)
This document contains 250 multiple-choice practice questions specifically designed to prepare for the Oil Burner License Exam. Each question includes a verified correct answer, ensuring accurate preparation and high-quality review material. The content is ideal for individuals aiming to pass licensing exams for oil burner technicians and includes topics such as combustion, safety codes, fuel systems, maintenance procedures, and state regulations. Suitable for both initial certification and refresher study. What is the first thing a tech should do when arriving at a no combustion call? - RIGHT CHOICE Ask how many times the customer reset the unit. What is the best long-term solution for preventing a clogged nozzle? - RIGHT CHOICE -Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - RIGHT CHOICE False When in the presence of a flame, a cad cell normally reads. - RIGHT CHOICE 300-1000 ohms If a pump is used to bring oil to a level higher than the tank, an oil safety valve is required. - RIGHT CHOICE True On a call where a hydronic heat system is putting out too much heat on the stack, the issue may be. - RIGHT CHOICE -Too much draft. -Not enough combustion air in the equipment room. -Air leakage into chamber. A high CO2 reading is caused by.. - RIGHT CHOICE Incomplete combustion An often overlooked cause of a high CO2 reading is.. - RIGHT CHOICE Not enough combustion air in the equipment room. When multiple pumps are wired together in a heating system, they should be wired in.. - RIGHT CHOICE parallel In a series circuit.. - RIGHT CHOICE Current has one path. When 2 burners are connected to the same chimney.. - RIGHT CHOICE Sufficient draft must be obtained to operate both units. The ignition transformer is located.. - RIGHT CHOICE In the primary control. When safeties are wired in series one safety will affect the operation of the others. - RIGHT CHOICE True
Document information
- Uploaded on
- October 29, 2025
- Number of pages
- 34
- Written in
- 2025/2026
- Type
- Exam (elaborations)
- Contains
- Questions & answers
