Massachusetts O il Burner Study Guide Latest Updated 2024/2025 with Complete Solutions What is the voltage found at the TT terminals - Correct Answer 24 volts What are the 8 steps of a no heat call - Correct Answer 1 talk to customer 2 check tt.3 check to make sure an emergency switch is on 4check to 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 - Correct 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. - Correct 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 - Correct Answer The stack relay is operating correctly What is normal pump pressure - Correct Answer 100 PSI How is combustion achieved - Correct Answer Atomization, air, ignition.What is primary air and secondary air - Correct 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 - Correct Answer It shall be secured attached to a non-combustible supports What is the wire gauge use an oil burner circuits - Correct Answer 14 gauge 15 amp fuse 1 / 3
How is an oil burner wired - Correct 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 - Correct 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 - Correct 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 - Correct Answer Carbon hydrogen oxygen and hydrocarbons What is a BTU - Correct 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 - Correct Answer 140,000 BTUs What determines the gallons per hour of a nozzle - Correct Answer Manufacturer ,the bore size, pump pressure or Orphus What is a series circuit - Correct Answer an electrical or piping circuit where all of the current or fluid flows through the entire circuit What is a degree day - Correct Answer The average temp for the day - 65 What is the flash point of number 2 fuel oil - Correct Answer 115 degrees Fahrenheit When does the law require a combustion efficiency test - Correct Answer During installation and maintenance 2 / 3
What controller shuts off the oil burner in the event of excessive temperature in the appliance - Correct Answer The high limit switch What are the three functions of an oil pump - Correct Answer 1- filters 2- pressurizes 3- pumps fuel to the burner How is an oil burner circuit wired - Correct Answer In series on its own circuit How is oil flow adjusted in a rotary burner - Correct Answer Constant level and metering valve What does InStep mean - Correct Answer The stack relay is operating properly How is combustion achieved - Correct Answer Atomization ,air ,ignition.What is the minimum size oil line for residential burners - Correct Answer 3/8 inch How is safety timing checked on a stack relay switch - Correct 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 - Correct Answer 45 seconds What control devices are found on gravity feed burners - Correct Answer Constant level valve When is a vent pipe required - Correct Answer When the Supply tank is larger than 10 gallons What is the time limit for submitting certificate of completion - Correct Answer Within 72 hours What kinds of joints are used on tank installations - Correct Answer Swing joints Why are swing joints used on oil tank installations - Correct Answer Shifting with in the tank
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