oil burner final exam practice questions and answers (100% pass)

oil burner final exam practice questions and answers (100% pass) What are 2 ways the fuel flow rate is set on an oil burner? - Answer️️ -Nozzle, size and oil pressure. List three things needed for ignition? - Answer️️ -Fuel, air and spark. Flame Retention Burners have what advantage over Non Flame Retention? - Answer️️ -Better air to oil mixture and cleaner burning. Flame Retention Burners work on _ pressure? - Answer️️ -High Static pressure. Why is it important to keep Burner motor fan clean? - Answer️️ -Keep proper airflow. How do you adjust air on a Fixed Head and an Adjustable Head? - Answer️️ - Change the airflow from the ring, adjust the dept of the nozzle. What is heating oil? - Answer️️ -It's hydrocarbon fossil fuel that's manufactured from crude oil. How may BTU's are in 1 Gallon of #2 fuel oil? - Answer️️ -140,000 What is flash point? - Answer️️ -It's the lowest temp. that will flash and ignite but not continue to burn. ©PREP4EXAMS@2024/2025 REAL EXAM DUMPS Monday@ August 5@ 2024 6@07 PM What is ignition point? - Answer️️ -It's the lowest temp. when rapid combustion takes place. Air is 500o What is pour point? - Answer️️ -Its the lowest temp your fuel will flow. On an outside oil tank, what happens to the viscosity of fuel oil? - Answer️️ - Viscosity will increase and slows down. What causes Sulfuric Acid in a heating system? - Answer️️ -When sulfur in the oil burns and mixes with moisture. What is in the sluge at the bottom of the oil tank? - Answer️️ -Bacteria, rust or mold. List a few reasons of how water would get into an oil tank? - Answer️️ - Condensation, vent caps and loose or missing joints. What are a few good practices of oil tank installs? - Answer️️ -Still pipe, mealable joints, alarm vents 5ft from oil burner and inspect tank and keep elevated. What is the function of a fuel pump on an oil function? - Answer️️ -Lift the oil from the tank and deliver it at a constant and regulated pressure to the nozzle. Is a 2 pipe oil pump is a self bleeding pump? - Answer️️ -True ©PREP4EXAMS@2024/2025 REAL EXAM DUMPS Monday@ August 5@ 2024 6@07 PM Will an oil leak on the return oil line affect the performance of oil burner? - Answer️️ -No. What is the factory set point on an oil pump and minimum operating pressure? - Answer️️ -100 psi for both. On an oil pump shut down what is the max allowable drop and hold point? - Answer️️ -20 of operating pressure. What can cause a pulsating oil pump pressure reading? - Answer️️ -Air, dirty pump screen, worn gears in the pump. What can cause oil pump nose? - Answer️️ -Worn gears, air leaks and high vacuums. How do you calculate vacuum in an oil pump? - Answer️️ -1'' of vacuum 1 ft of lift, 1'' for every 10ft of run and 1/2 to 1''for filter. What does it mean if operating vacuum is higher than calculated vacuum? - Answer️️ -Plugged filter, kinked or plugged suction line and sticking valve. What are the 3 purposes of the Nozzle? - Answer️️ -Atomize the oil, pattern the spray and meter the amount of oil. The flow rate on a nozzle is based on what pressure? - Answer️️ -100 psi ©PREP4EXAMS@2024/2025 REAL EXAM DUMPS Monday@ August 5@ 2024 6@07 PM What are the 3 most common types of nozzles? - Answer️️ -Hallowed Cone A, Solid B, and Semisolid SS. What are 3 ways to minimize the effects of increased viscosity on cold oil? - Answer️️ -Increase pump pressure, install a nozzle line preheater and use additives or kerosene to reduce viscosity. What are 3 causes of Nozzle after drip? - Answer️️ -Defected pressure regulating valves, air in the nozzle line and oil expansion deflect heat. What is Draft measured in? - Answer️️ -Inches of water column. Where are the 2 spots you take your draft reading? - Answer️️ -Draft over the fire and at the breech. What is the function of a Draft regulator? - Answer️️ -Decrease overfire draft to a steady low draft. What are 3 alternative ways for venting an oil burner? - Answer️️ -Draf