Oil Burner License Exam 2023 Questions And Answers

One reason oil would drop from the nozzle after the burner shuts down is: {Ans: A faulty fuel unit cut-off}Which spray pattern is most often used on nozzles rated below 1.0 GPH? {Ans: Hollow}When installing a power vent system: {Ans: Follow the manufacturer's installation guide}Off-cycle heat losses include: {Ans: -Chimney draft -Jacket loss}Hot water and steam valves are interchangeable. {Ans: False}The annual fuel utilization efficiency (AFUE) is: {Ans: A test performed to rate boilers and furnaces.}