Troubleshooting Oil Heating Questions and Answers Graded A+

Troubleshooting Oil Heating Questions and Answers Graded A+ In a typical oil burner, the oil is ignited by ______. Electrodes In a furnace equipped with a solenoid oil flow valve, the valve will close when _______. Power is removed The component that turns the oil burner and blower on and off in response to external commands is the ________. Primary control The cad cell in an oil furnace performs the same function as which device in a gas furnace? Flame detector A two-line oil piping system is used when the oil supply level is below the burner because it _______. Eliminates the need to bleed air from the lines If a furnace is found with a puddle of oil in the combustion chamber, ________. Pump out or soak up the excess oil from the chamber A pulsating sound coming from an oil furnace indicates ________. The flame is touching the combustion chamber The highest AFUE-rated oil furnace that a technician is likely to encounter is _______. 86.5 percent When a flame retention head burner is used, the smoke level should be adjusted for _______. Zero smoke An uncovered cad cell tested with an ohmmeter produces a reading of 800 Ω. The next step is to ________. Do nothing; The cell is working properly A faulty nozzle should be ________. Replaced If a varnish-like substance has formed on an oil burner nozzle, it indicates that the _______. Furnace is overheating Which of these conditions is likely to cause overheating? A nozzle that is too large Which of the following is the correct method for troubleshooting an electronic time delay? Check the input and output voltage to and from the time delay Which of these conditions can occur when the top of the chimney is lower than a surrounding structure? Downdraft