Oil furnaces questions and answers 100% pass

Oil furnaces questions and answers 100% pass What is the purpose of the primary controller in an oil furnace? The answer is IT CYCLES THE BURNER. The primary controller is an automatic safety device installed on every oil furnace to shut off the burner if the flame is out. Oil furnaces are like gas furnaces in all of the following respects except A) fan/limit switch. B) blast tube. C) heat exchanger. D) ducts, registers, and grilles. The answer is BLAST TUBE. The blast tube is a component of oil furnace burners but not gas furnace burners. The maximum steady state efficiency for an oil burner is The answer is 87%. The maximum steady state efficiency for an oil burner is about 87%. Oil flows from an above ground exterior tank through a 2-inch pipe into the basement. Here it passes a shutoff valve and a union. The 3/8-inch copper line starts here and runs to the burner. What is missing? The answer is A FUEL FILTER. A fuel filter is needed here. You come across an oil furnace that has a tripped primary control. You should The answer is NOT RESET THE PRIMARY CONTROL, AND ATTEMPT TO VIEW THE FIREPOT FOR POOLING OIL. You should be looking for pooling oil in the firepot. You should not reset the primary control. This may contribute to flooding the firepot. The viewport shows that the back wall of the ceramic felt combustion chamber is no longer white. It is browned and stained. What is the likely cause of this discoloration? The answer is SATURATION OF THE CERAMIC FELT WITH OIL. A ceramic felt combustion chamber that is brown and stained is probably saturated with oil. The heat content of one gallon of No. 2 heating oil is approximately The answer is 140,000 BTU. One gallon of #2 heating oil contains approximately 140,000 BTU. Common problems with oil fill and vent pipes do not include A) leaks. B) missing caps. C) abandoned. D) oversized. The answer is OVERSIZED. It isn't common nor would it be a problem if oil fill and vent pipes were oversized. Which is not a common oil filter problem? A) Leaking