P98 Questions and Answers Graded A

P98 Questions and Answers Graded A Suction pump circulates the oil throughout the system Suction line has to be 6 inches from the bottom of the tank for sediment not to be absorbed Vacuum gauge 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 indicate that there is an obstruction in the suction line Main fuel valve is electrically operated and will open or close the line leading to the atomizer only for oil burners Carbon and hydrogen are the two principal elements of fuel oil During the combustion process, the carbon content of fuel oil is 85% The hydrogen content of the oil is 14% The air that contacts the oil prior to its leaving the nozzle is referred to as 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 secondary air Oil burners require approximately 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 carbon dioxide (CO2) Each time 1 pound of carbon is burned 14,544 BTU of heat are liberated A correctly adjusted oil burner flame will have an orange colored flame body with small red tips A red, smoky flame is an indication of a lack of air A white, almost dazzling flame is an indication of a great amount of excess air An insufficient air supply is one cause of dense, black smoke and soot Insulated firebrick is lightweight firebrick that becomes cherry red 15 seconds after the burner starts Diesel generators should be tested at minimum monthly Small portable diesel generators rang from 1K VA - 10K VA Large office complexes, factories, and power stations generators rang from 8K VA - 2000K VA Approval from the NYC department of buildings and FDNY is required before changing any grade of fuel oil The tank shut off valve permits the operator to stop the flow of oil to clean the strainer and to perform maintenance