Massachusetts oil burner study guide with complete solutions

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What is the voltage found at the TT terminals - ANSWER 24 volts What are the 8 steps of a no heat call - ANSWER 1 talk to customer 2 check tt.3 check to make sure an emergency switch is on 4check t... o make sure there is oil in the tank 5 check to make sure the main power going to the unit is on six check to make sure that tank shut off valve is open 7 know whether the tank is located above or below the burner I know the type and style of the system that is being used on a one or two pipe system What is a cad cell - ANSWER A device containing condominium sulfide used to prove the flame in oil burner furnace How much air is needed to burn a gallon of number 2 fuel oil and why. - ANSWER In 2015 most oil burners are set up to burn with approximately 50% excess air because it would be dangerous to set up a burner for exactly the correct amount of air What is the term InStep mean - ANSWER The stack relay is operating correctly What is normal pump pressure - ANSWER 100 PSI How is combustion achieved - ANSWER Atomization, air, ignition. What is primary air and secondary air - ANSWER Primary air, air that is introduced to a furnace burner before the combustion process has taken place. secondary air, air that is introduced to the furnace after combustion has taken place and that supports combustion How should an oil tank be supported - ANSWER It shall be secured attached to a non-combustible supports What is the wire gauge use an oil burner circuits - ANSWER 14 gauge 15 amp fuse How is an oil burner wired - ANSWER Shall be wired on its own circuit. All protective control and emergency devices shall be series connected in the grounded line conductors. all the electrical wiring shall be in accordance with 527 CMR 12.00 Massachusetts electrical code What size vent pipe is required with a 2 inch fill pipe - ANSWER A fill pipe shall not be greater than the vent pipe. The minimum the fill pipe in the state of Massachusetts is one and one quarter inch. Explain interrupted ignition - ANSWER the ignition Transformer drops out of the circuit once a flame is established What are the elements are found in fuel oil number 2 - ANSWER Carbon hydrogen oxygen and hydrocarbons What is a BTU - ANSWER A British thermal unit is the amount of heat needed to raise one pound of water 1 degree Fahrenheit How many BTUs are in one gallon number 2 fuel oil - ANSWER 140,000 BTUs What determines the gallons per hour of a nozzle - ANSWER Manufacturer ,the bore size, pump pressure or Orphus What is a series circuit - ANSWER an electrical or piping circuit where all of the current or fluid flows through the entire circuit What is a degree day - ANSWER The average temp for the day - 65 What is the flash point of number 2 fuel oil - ANSWER 115 degrees Fahrenheit When does the law require a combustion efficiency test - ANSWER During installation and maintenance What controller shuts off the oil burner in the event of excessive temperature in the appliance - ANSWER The high limit switch What are the three functions of an oil pump - ANSWER 1- filters 2- pressurizes 3- pumps fuel to the burner How is an oil burner circuit wired - ANSWER In series on its own circuit How is oil flow adjusted in a rotary burner - ANSWER Constant level and metering valve What does InStep mean - ANSWER The stack relay is operating properly How is combustion achieved - ANSWER Atomization ,air ,ignition. What is the minimum size oil line for residential burners - ANSWER 3/8 inch How is safety timing checked on a stack relay switch - ANSWER Remove the stack relay from the duck and let it run .it should shut off in 45 seconds. What is the safety lockout time on Burner firing under 3 gallons per hour - ANSWER 45 seconds What control devices are found on gravity feed burners - ANSWER Constant level valve When is a vent pipe required - ANSWER When the Supply tank is larger than 10 gallons What is the time limit for submitting certificate of completion - ANSWER Within 72 hours What kinds of joints are used on tank installations - ANSWER Swing joints Why are swing joints used on oil tank installations - ANSWER Shifting with in the tank What is the minimum distance that the burner can be from the tank - ANSWER 5 feet How many gallons of oil can be stored without a permit - ANSWER 10 gallons or less How much outside or replacement air is needed in a confined space - ANSWER 1 square inch for 2000 BTUs How much outside air or replacement air is needed in a boiler room in of tight Construction - ANSWER 1 square inch per 1000 BTUs What is the purpose of a heat anticipator - ANSWER It keeps the heat from over shooting Explain two different types of differentials used by thermostat - ANSWER In heating anticipates heat leftover.in cold turns on compressor early what are the parts of an ignition assembly explain the function of each part what is the operating voltage - ANSWER Electrode :spark to ignite fuel. Transformer: step up from 120 volts to 14000 hundred volts. porcelain are insulators. When does code require low water cutoff - ANSWER Always on a steam boiler ,and when hot water heater has an input rating of 400,000 BTUs an hour or greater What are the three functions of a pressure regulating valve on an oil pump - ANSWER Maintain boiler pressure clean sharp cut off and Supply oil. What must be done prior to installing an oil burner - ANSWER One must get a permit before installing an oil burner What are the four no heat call steps - ANSWER #1Oil check#2 fuse breaker#3 emergency switch#4 power What are the requirements for oil fuel vent pipes that terminate outside of the building - ANSWER No openings within two feet of vent What is the safety timing of a gas pilot ignition - ANSWER 15 seconds or less What must be done to install an additional fuel tank in a building that already has a tank holding 1320 gallons - ANSWER They must have a firewall around them What must be done with the bypass plug on a two pipe system and on a one pipe system - ANSWER On a one pipe system. the bypass plug must be removed .on a two pipe system the bypass must be installed. What is a bypass plug - ANSWER A 1/16 inch plug to convert 1 pipe to a 2 pipe system What is a power burner - ANSWER Anything that's not a vaporizing oil burner Can a series 10 .3 wire thermostat be used with a 2-wire control? explain. - ANSWER Yes by jumping out the ground Can a series 80 dryer thermostat be wired into a 3-wire control - ANSWER No What is the greatest loss in a boiler - ANSWER Heat loss through the chimney How high on the wall should thermostat be installed - ANSWER 5 feet from the ground What must be checked while installing a Mercury bulb thermostat - ANSWER Must be checked to be level Why are low voltage thermostats use more than line voltage ones - ANSWER Safety What additional requirements are there for installing two or more tanks to a common discharge line - ANSWER They must be on a common slab at the same height and secure to one another 6 oil burners have been installed in a large room which is of tight construction and which must be kept closed at all times there is decidedly not enough combustion air for proper burner operation there burner sizes are 1.35 gallons per hour under these conditions what is the minimum free area of an opening connecting to the outdoors which must be provided - ANSWER 567 inch by 2 inch vent going to outside what is the maximum voltage allowed for an oil burner circuit - ANSWER 150 volts Is carbon monoxide a desirable element in flue gases - ANSWER No How much air is needed to burn a gallon of fuel oil and why - ANSWER 14.4 plus 50% 192 feet cubed 154 CF to ensure enough oxygen When visually adjusting the flame on an oil burner you should try to get - ANSWER An orange flame with red Flame tips Explain how a burner should be piped when the supply tank is located below the burner - ANSWER 2. Pipe dual stage with a bypass plug How should a stack switch be installed according to 527 CMR 4.00 - ANSWER With a flexible conduit Why should a stack switch not be rigidly mounted - ANSWER So you can pull it out and check it What are the purposes of a hot and cold contacts in stack switches - ANSWER Hot: as they heat up hot contacts close .Cold: normally closed switches open when heat heats them up. What is delayed ignition - ANSWER Fuel introduced to the combustion chamber before ignition What are two causes of delayed ignition - ANSWER The igniter electrodes or weak Transformer how is a cad cell primary control relay put in step - ANSWER The reset button On domestic oil tanks when is it necessary to install a vent alarm - ANSWER On tanks greater than 10 gallons Must every fuel tank have a gauge - ANSWER No .only on tanks greater than 10 gallons. What is the Pensky Martens test - ANSWER It's a Flashpoint test List all requirements for the fill and vent pipes - ANSWER Swing joints on the fill pipe minimum of one and one-quarter inch and the vent has to be as large or larger than the fill. vent must be two feet away from any opening in the house and it must be three feet off grade List all the devices necessary for safe operation of a forced hot water system with domestic start from the fuse box - ANSWER Fuse box emergency switch thermal cut-out service which limit switch primary control What is a low limit used for on a steam boiler or hot water boiler - ANSWER It maintains the water temp in the boiler How are primary controls wired - ANSWER L Black L2 white Terminal 3 goes to the burner motor Terminal 4 goes to interrupted ignition all must be flexible What is a reverse acting aquastat used for on a hot water boiler - ANSWER Normal open switch that close on temperature rise to operate circulators What two problems will a vacuum test reveal - ANSWER 1 an air leak 2 restriction in the pipe What causes a whining sound in a pump - ANSWER High vacuum pressure. (it must be air bound, too much air in the line.) line needs to be bled out. What should the smoke test before a properly tuned Appliance - ANSWER Zero two a Trace What is a sword - ANSWER A clean device that is a three to four foot long with a handle it also has a saw blade looking thing on the other end is used in tight spaces or brushes can't reach What is the purpose of a reverse acting control - ANSWER To prevent cold water from being circulated on cold start How is a safety lockout determined on a stack switch without removing it from its holder - ANSWER Remove the third terminal Is CO2 test determines - ANSWER The percentage of carbon dioxide in the flue gas When Shall steam heating boiler and a hot water boiler require inspection by the commissioner of mass Dept of Public Safety before it is put into service - ANSWER Any time a permit is pulled to install or alter a burner Where is the check valve installed on a two pipe system when there is a lift situation - ANSWER As close to the tank as possible supply-side How many seconds must have primary safety control shut off the burner - ANSWER Firing Less Than 3 gallons per hour 45 seconds firing 3 - 7 gallons per hour 15 seconds What is normal pump pressure - ANSWER 100 PSI What would be the advantages of a pump pressure higher than 100 PSI - ANSWER A cleaner burn What determines the size of a nozzle gallons per hour - ANSWER The maximum firing rate What is the purpose of a draft regulator - ANSWER To get the proper amount of air flow through the burner What are two ways to adjust draft - ANSWER Primary and secondary air ,and the draft regulator What is the purpose of a flow check valve - ANSWER Make sure flow of water does not go into the Zone that's it is unwanted What is the minimum gauge of an above-ground tank - ANSWER 12 gauge What are the two motor speeds - ANSWER 1725 and 3450 What is a drop lever valve - ANSWER Oil shut off What kind of valves are needed at the tank and pump - ANSWER Firematics automatic shut-off valves Where is the solenoid valve installed and how is it wired - ANSWER Nozzle line or port in parallel with Burner motor What are three types of pressure regulating valve - ANSWER Pressure control ,(water heater hydronic )fuel pump ,pressure relief valve what would cause end cone burn off - ANSWER Too much back pressure How is a cut-off test taken on an oil pump - ANSWER Hook up gauge and shut off the burner .it should hold 80% of the pressure. pressure should drop no more than 10 to 15 psi How long can flexible conduit be on an oil burner - ANSWER 6 feet What would too much air do to the efficiency of an appliance - ANSWER It would lower the efficiency by pushing the heat up the chimney What effect would cut down on excess air have on co2 percentage - ANSWER It would increase CO2 readings The limit on a steam boiler operates by - ANSWER Pressure What is the approval of a 660 gallon tank - ANSWER Standard of UL 80 What is the approval of an oil tank larger than 660 gallons - ANSWER Standard of UL 142 Can two supply tanks be provided with only one fill pipe and vent pipe - ANSWER Yes Can Teflon tape be used on oil line connections - ANSWER No When must oil lines be in closed in a non-metallic sleeve - ANSWER When there is direct contact with concrete or Earth What is a gallon of oil - ANSWER The amount of oil to occupy one standard u.s. gallon 231 cubic inches at a temperature of 60 degrees Fahrenheit How should multiple oil tanks be separated from other portions of a building - ANSWER 2 hour rated fire resistive assemblies with openings protection and continuity How should a little tank of less than 10 gallons be installed - ANSWER At least 2 feet from any heat source When when installing a tank larger than 10 gallons capacity is provided with an opening in the bottom for use as a burner Supply connection or as a drain how should the tank be pitched - ANSWER Towards the opening What is code with tank insulation inside garages - ANSWER Must have a Automotive protective barrier. Individual Supply tanks larger than 660 gallons shall be enclosed - ANSWER True How should an enclosed tank be supported - ANSWER By at least four inches above the floor by Masonry sadels at least 12 inch thick space not more than 8 feet on Center and extending the full width of the tank at least 15 inches clearance shall be provided between the tank and the top of the walls of the tank enclosure for purposes of inspection and repair What is code with outside tanks with an inside burner - ANSWER Must be protected from physical damage and protected from atmospheric corrosion How should outside tanks be mounted - ANSWER On a concrete slab 4 inches deep and extending 8 inches Beyond perimeter of tank How long can vent pipes be - ANSWER A minimum of 3 feet above grade How should return lines be connected to an exposed oil tank - ANSWER At the top of the tank Can an overflow pipe from the auxiliary tank have a valve or obstruction - ANSWER No Are compression fittings allowed on oil lines - ANSWER No What is the difference between an auxiliary tank and Supply tank - ANSWER Supply tank is the primary tank the auxiliary tank is a secondary tank What is the purpose of Form 1 - ANSWER An application for a permit to install or alter oil burning equipment Can stack switches be used as a primary control - ANSWER Yes How much time do you have to file an application after an emergency install - ANSWER 24 hours excluding weekends and holidays According to code when is a low water cut off required on a steam boiler - ANSWER Steam boilers and hot water boilers above 400000 BTUs [Show More]

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