Oil Heat Unit 32 Questions and Answers Rated A+

Oil Heat Unit 32 Questions and Answers Rated A+ How many grades of fuel oil are normally considered as heating oils. There are six What two elements make up fuel oil Carbon and Hydrogen The most common fuel oil used for residential and light commercial is? Number two As the temperature of an oil sample decreases; The viscosity of the oil increases If oil is to be stored at temperatures lower than 20 degrees F. The viscosity will be thicker. Explain why periodic oil tank inspection is desired: To ensure that the tank is free of leaks and that the protective anodes are in good working conditions. If it is expected that an oil-fired appliance will burn 850 gallons of oil per year, how big the oil storage be? 275 gallons. How many pounds of oxygen are required to burn 1 pound of Number two fuel? 3 Lbs of oxygen Explain the concept of excess air when it is used to describe the combustion process; Most oil burners are set up to burn with appoximately 50 % Excess air. When 1Lb of oil with 50% excess air is burned 21.6 lbs. or 288 CuFt. of air must be furnished. Before fuel oil can be burned, it must be Automized What product of combustion are produced with ideal combustion when fuel oil is burned? Heat, Carbon-dioxide and water vapor. When incomplete combustion occurs, what additional by-products of combustion are created? Carbon monoxide, soot or free carbon. The minimum nuzzle pressure for residential and light commercial gun type oil burner is? 100 Psi. Two types of oil burner pumps are______ stage and _______ stage Single, two Describe the three functions of the oil burner nozzle It prepares the fuel oil for combustion by atomizing, metering and pattering the fuel oil Describe three common spray patterns for oil burner nozzle: Hollow cone, Solid cone and Semisolid cone The purpose of the electrodes of an oil burner is to? To provide the heat necessary to both vaporize the atomized oil droplet and ignite the vaporized air-oil mixture. What is the purpose of the ignition transformer? To provide high voltage to the electrodes that produces the spark for ignition. Explain the differences between an ignition transformer and a solid-state igniter: The ignition transformer, is a step up transformer that produces 10,000 to 14,000 volts. The solid state igniter is lighter as the out-put voltage is by state circuit that produces 14,000 to 24,000 volts. List the advange a solid state igniter has over an ignition transformer: -Higher voltage at the out-put results in faster vaporization and ignition.