P-98 / Supervise Fuel-Oil Transfer In Buildings Exam Questions With Correct Answers, Latest Updated 2024/2025 (VERIFIED ANSWERS)

How often shall fuel-oil storage tanks and piping be inspected for leaks? - Correct Answer-Weekly. For what two purposes is fuel-oil generally used in buildings? - Correct Answer-(1) Emergency generators. (2) Heat. How often shall fuel-oil storage tanks have their float switches tested? - Correct AnswerWeekly. Fuel-oil transfer shall be conducted under the ____ supervision of a P-98 COF holder. - Correct Answer-General. Fuel-oil system testing shall be conducted under the ____ supervision of a P-98 COF holder. - Correct Answer-Personal. The P-98 COF is required for any building in which fuel is transferred from the lowest floor to tanks on ____. - Correct Answer-Upper floors. Where is fuel-oil stored? - Correct Answer-Storage tank. The storage tank provides the supply of oil for ____ in the oil burner. - Correct AnswerCombustion. No. ____ fuel-oil is thin, light and easily pumped through the system. - Correct Answer-2 The storage tank is located inside a ____ which will contain the oil in case of a leak. - Correct Answer-Dike. A ____ pump circulates oil throughout the system. - Correct Answer-Suction. What is present in fuel-oil coming from the storage tank? - Correct AnswerDirt/sediment. The ____ removes most dirt and sediment in oil coming from the storage tank before it reaches the burner. - Correct Answer-Strainer/filter. P-98 / Supervise Fuel-Oil Transfer In Buildings Exam Questions With Correct Answers, Latest Updated 2024/2025 (VERIFIED ANSWERS) How far from the bottom of the tank must the suction line be to avoid absorption of dirt and sediment? - Correct Answer-6 inches. Which device measures pressure below atmospheric pressure? - Correct AnswerVacuum gauge. What do excessive vacuum readings indicate? - Correct Answer-An obstruction in the suction line. Closing the shut-off valve does what? - Correct Answer-Stops the flow of oil for the purpose of cleaning the strainer and maintenance. The shut-off valve is located as close as possible to the burner to reduce the amount of oil remaining in the ____ after an emergency shutdown. - Correct Answer-Burner line. The main fuel valve is electrically operated and will open or close the line leading to the ____ of the oil burner. - Correct Answer-Atomizer. The main oil burner/combustion controller is the ____. It will shut down when no flame is detected. - Correct Answer-Primary relay control. Oil circulates through the system back to the storage tank through the ____. - Correct Answer-Oil return line. Which valve is provided for safety if the pressure becomes too great? - Correct AnswerBack pressure relief valve. Day tanks may be located throughout the building above the ____ floor. - Correct Answer-Lowest. A separate ____ is required for each day tank to supply each floor. - Correct AnswerPump. What is provided in the system in case there is a leak in the piping? - Correct Answer-A leak collector. The leak collector is stored by the ____. - Correct Answer-Storage tank. The leak collector has an ____ gauge. - Correct Answer-Oil level. What will the main fuel valve do if there is a failure of ignition or combustion? - Correct Answer-It will shut down the burner system. The oil level gauge will show how much fuel oil is inside the ____. - Correct AnswerStorage tank/day tank. ____ is the chemical union of oxygen with the hydrogen and carbon in fuel-oil. - Correct Answer-Combustion. What are the combustible elements in fuel-oil? - Correct Answer-Hydrogen and carbon. What is the end result of combustion? - Correct Answer-Heat energy. Which equipment is used to liberate heat energy from fuel-oil? - Correct Answer-Oil burners. Carbon makes up about ____ % of fuel-oil. - Correct Answer-85 Hydrogen makes up about ____ % of fuel-oil. - Correct Answer-14 During combustion, carbon in the fuel-oil unites with oxygen in the air to produce which two compounds? - Correct Answer-(1) Carbon dioxide. (2) Carbon monoxide. During combustion, hydrogen in the fuel-oil unites with oxygen in the air to produce which compound? - Correct Answer-Water. The objective of complete combustion is met when fuel-oil combines with the greatest possible amount of ____. - Correct Answer-Oxygen. Fuel-oil must be changed to ____ and mixed with oxygen in order to support combustion. - Correct Answer-Vapor/gas. Oil burners accelerate the change in fuel-oil from ____ so that it can be mixed with oxygen and burned. - Correct Answer-Liquid to vapor. The process of changing fuel-oil from liquid to vapor so that it can be mixed with oxygen and burned is also known as ____. - Correct Answer-Atomization. Atomizing fuel-oil ensures prompt ____ and rapid ____. - Correct Answer-Ignition / Combustion All oil burners (boilers or generators) atomize the oil before it enters the ____. - Correct Answer-Combustion chamber. Oil burners use pumps and mix oxygen and oil within the ____. - Correct AnswerNozzle. The oxygen and oil mixture is delivered to the nozzle at a pressure dependent upon the ____ of the burner. - Correct Answer-Make. The air that contacts the oil prior to its leaving the nozzle is referred to as ____. - Correct 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 ____. - Correct Answer-Secondary air. Every brand of oil burner is ____ from that of other manufacturers. - Correct AnswerDifferent. Which type of generators use injection nozzles without primary air? - Correct AnswerDiesel. Oil burners require approximately ____ cubic feet of air per gallon of oil consumed. - Correct Answer-2,000 The mixture of oil and air is sprayed in vapor form into the ____. - Correct AnswerCombustion chamber. The combustion chamber is also known as a ____. - Correct Answer-Firebox area. If the mixture of air and oil in the burner is not strictly controlled, it could become ____. - Correct Answer-Explosive. During the process of combustion, ____ part carbon unites with ____ parts oxygen to produce carbon dioxide. - Correct Answer-1 / 2 How much BTU of heat are liberated per 1 pound of carbon burned? - Correct Answer14,544 What is recognized as the end product of complete combustion? - Correct AnswerCarbon dioxide. Should fuel be supplied without the proper amount of ____, carbon dioxide and soot will be produced. - Correct Answer-Oxygen. What is recognized as the end product of incomplete combustion? - Correct AnswerCarbon monoxide. How much BTU of heat are liberated as a result of incomplete combustion? - Correct Answer-4,480 How much BTU of heat are liberated as a result of complete combustion? - Correct Answer-14,544 In addition to being inefficient in the production of heat, the presence of carbon monoxide is ____. - Correct Answer-Highly dangerous. If the proper amount of air has been thoroughly mixed with the oil, and the temperature of the flame is correct, the free carbon burns ____. - Correct Answer-Completely. A correctly adjusted oil burner flame will have an ____ flame body with small, slightly cloudy ____ tips. - Correct Answer-Orange / Red What is a red, smoky flame an indication of? - Correct Answer-Lack of air. What is a white, almost dazzling flame an indication of? - Correct Answer-A great amount of excess air. What is one cause of dense, black smoke and soot? - Correct Answer-An insufficient air supply. What might an excessive air supply do to the flame? - Correct Answer-Put it out. The oil spray entering a combustion chamber burns in ____. - Correct AnswerSuspension. If any part of the oil spray mixture contacts the walls of the combustion chamber, it will cause ____. - Correct Answer-A smoky fire. Over a period of time, what may cause a burner failure? - Correct Answer-A build up of carbon deposits in the combustion chamber. The mixture of fuel-oil and air is ignited at first by ____ ignition. After ignition, combustion is maintained by ____ heat in the combustion chamber. - Correct AnswerElectric / Reflected What makes up the walls of a combustion chamber? - Correct Answer-Insulated firebrick. Insulated firebrick is lightweight and becomes cherry red ____ seconds after the burner starts. - Correct Answer-15 The refractory material in a combustion chamber should be closed to the flame, and the oil should be burned by what? - Correct Answer-Reflected heat. Reflected heat is heat that is reflected back into the combustion chamber and maintains the fire after ____. - Correct Answer-The ignition is turned off. Reflected heat increases ____. - Correct Answer-Combustion efficiency. What type of engine does a diesel generator operate on? - Correct Answer-Internal combustion.