COF P98 EXAM 2023
Suction pump - Answer circulates the oil throughout the system Suction line - Answer has to be 6 inches from the bottom of the tank for sediment not to be absorbed Vacuum gauge - Answer a device that measures pressure below atmospheric pressure/is used to indicate to the operator whether there is an obstruction in the suction line Excessive vacuum readings - Answer indicate that there is an obstruction in the suction line Main fuel valve - Answer is electrically operated and will open or close the line leading to the atomizer only for oil burners Carbon and hydrogen - Answer are the two principal elements of fuel oil During the combustion process, the carbon content of fuel oil is - Answer 85% The hydrogen content of the oil is - Answer 14% The air that contacts the oil prior to its leaving the nozzle is referred to as - Answer Primary air the introduction of air from the blower or fan into the combustion chamber after the oil has left the nozzle is referred to as - Answer secondary air Oil burners require approximately - Answer 2000 cubic feet of air per gallon of oil consumed During the process of combustion, one part of carbon unites with two parts of oxygen to produce - Answer carbon dioxide (CO2) Each time 1 pound of carbon is burned - Answer 14,544 BTU of heat are liberated A correctly adjusted oil burner flame will have an - Answer orange colored flame body with small red tips A red, smoky flame is an indication of a - Answer lack of air A white, almost dazzling flame is an indication of a great amount of - Answer excess air An insufficient air supply is one cause of - Answer dense, black smoke and soot Insulated firebrick is lightweight firebrick that becomes - Answer cherry red 15 seconds after the burner starts Diesel generators should be tested at - Answer minimum monthly
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