Oil Burners State test 100% correct.

How should an oil tank be supported? - ANSWER Ridgid non-combustible supports to prevent settling, sliding, or lifting What gauge wire is used on most oil burner circuits? - ANSWER 14 gauge minimum What does intermittent or interrupted mean? - ANSWER Intermittent - Transformer stays on throughout the burner firing cycle Interrupted - Transformer drops out after flame is established Who approves oil burner installations? - ANSWER the AHJ What size vent pipe is required with a 2-inch fill pipe? - ANSWER 2 inch minimum What are the elements found in fuel oil? - ANSWER 85% carbon 15% hydrogen What is fuel oil? - ANSWER a hydrocarbon How must the fuel oil be prepared for combustion? - ANSWER it must be atomized or vaporized, and mixed with air What is a BTU? - ANSWER the amount of heat necessary to raise 1 lb of water, 1° Fahrenheit How many BTUs are there in a gallon of number 2 fuel? - ANSWER 140000 What determines the GPH of a nozzle? - ANSWER the orifice What is a degree day? - ANSWER 65 degrees Fahrenheit minus the daily average temperature Can materials other than steel be used in fuel oil tanks? - ANSWER yes What does the word approved mean? - ANSWER accepted by the AHJ when is a combustion efficiency test required by law? - ANSWER after installations and alterations what control shuts off the oil burner in the event of excessive heat temperature in the appliance? - ANSWER the high limit