Oil Burner License Exam Questions & Answers A+ Pass

Add an oil line heater. Cut with #1 fuel or kerosene. What is the maximum tank size allowed inside unenclosed? - ANSWER-660 gal What is the purpose of a delayed oil valve? - ANSWER-Allows time for the oil pump to get up to speed. Delays oil flow to the nozzle. On a call where a hydronic heat system is putting out too much heat, the issue could be? - ANSWER-A shorted out thermostat. When measuring a cad cell with the burner running and the ff terminals jumped out, what should the cad cell reading be? - ANSWER-1600 ohms What are the possible causes of soot at or near the power venter? - ANSWER-Incomplete combustion What is a possible side effect of air in a nozzle line? - ANSWER-Soot What is the cause if the cad cell is tripped on safety? - ANSWER-Dirty cad cell Faulty cad cell No flame present If a boiler is running but the water temperature is low? - ANSWER-Undersized nozzle If a boiler is at 30 psi and the relief valve opens? - ANSWER-Expansion tank is undersized Tank bladder is perforated Tankless coil is leaking Atomizing type burners were designed to burn which type of fuel? - ANSWER-#2 oil One gallon of #2 fuel oil contains approximately: - ANSWER-140,000 BTU's Pour point problems with outside above ground fuel tanks can be partially relived by: - ANSWER--Relocating the outside fuel filters and strainers to the inside -Switching to #1 fuel oil