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A series of questions and answers related to troubleshooting oil heating systems. it covers various aspects of oil furnace operation, maintenance, and repair, including flame retention, afue ratings, troubleshooting sounds, oil leaks, piping systems, and component functions. The questions are designed to test understanding of oil heating system principles and practices.
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When a flame retention head burner is used, the smoke level be adjusted for ✔✔zero smoke The highest AFUE rated oil furnace that a technician is likely is encounter is ✔✔86.
A pulsating sound coming from an oil furnace indicateschamber ✔✔the flame is touching the combustion
If a furnace is found with a puddle of oil in the combustion chamber ✔✔ A two line oil piping system is used when the oil supply level is below the burner because ✔✔b The cad cell in an oil furnace performs the same function as which device in a gas furnace ✔✔flame detector
The component that turns the oil burner and blower on and off in response to external commandsis the ✔✔primary control
In a furnace equipped with a solenoid oil flow valve,the valve will close whenremoved ✔✔power is
Which of these conditions can occur when the top of the chimney is lower than the surroundingstructure ✔✔downdraft
Which of the following is the correct method for troubleshooting an electronic time delay? ✔✔check the input and output voltages
which condition is likely causing overheating ✔✔nozzle to big If a varnish like substance has formed on the oil burner nozzle, what does it mean ✔✔overheating
A faulty nozzle should be ✔✔replaced An uncovered cad cell tested with a ohmmeter has a reading of 800 ohms, what do you do next ✔✔A