MASSACHUSETTS OIL BURNER LICENSE EXAM 2026 | ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS | VERIFIED ANSWERS | BRAND
NEW VERSION!
What is the voltage found at the TT terminals ✔️24 volts
What are the 8 steps of a no heat call ✔️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 ✔️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. ✔️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 ✔️The stack relay is operating correctly
What is normal pump pressure ✔️100 PSI
How is combustion achieved ✔️Atomization, air, ignition.
What is primary air and secondary air ✔️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 ✔️It shall be secured attached to a non-combustible supports
What is the wire gauge use an oil burner circuits ✔️14 gauge 15 amp fuse
How is an oil burner wired ✔️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 ✔️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 ✔️the ignition Transformer drops out of the circuit once a flame is established
What are the elements are found in fuel oil number 2 ✔️Carbon hydrogen oxygen and hydrocarbons
What is a BTU ✔️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 ✔️140,000 BTUs
What determines the gallons per hour of a nozzle ✔️Manufacturer ,the bore size, pump pressure or Orphus
What is a series circuit ✔️an electrical or piping circuit where all of the current or fluid flows through the entire circuit
What is a degree day ✔️The average temp for the day - 65
What is the flash point of number 2 fuel oil ✔️115 degrees Fahrenheit
When does the law require a combustion efficiency test ✔️During installation and maintenance
What controller shuts off the oil burner in the event of excessive temperature in the appliance ✔️The high limit switch
What are the three functions of an oil pump ✔️1- filters 2- pressurizes 3- pumps fuel to the burner
How is an oil burner circuit wired ✔️In series on its own circuit
How is oil flow adjusted in a rotary burner ✔️Constant level and metering valve
What does InStep mean ✔️The stack relay is operating properly
How is combustion achieved ✔️Atomization ,air ,ignition.
What is the minimum size oil line for residential burners ✔️3/8 inch
, How is safety timing checked on a stack relay switch ✔️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 ✔️45 seconds
What control devices are found on gravity feed burners ✔️Constant level valve
When is a vent pipe required ✔️When the Supply tank is larger than 10 gallons
What is the time limit for submitting certificate of completion ✔️Within 72 hours
What kinds of joints are used on tank installations ✔️Swing joints
Why are swing joints used on oil tank installations ✔️Shifting with in the tank
What is the minimum distance that the burner can be from the tank ✔️5 feet
How many gallons of oil can be stored without a permit ✔️10 gallons or less
How much outside or replacement air is needed in a confined space ✔️1 square inch for 2000 BTUs
How much outside air or replacement air is needed in a boiler room in of tight Construction ✔️1 square inch per 1000 BTUs
What is the purpose of a heat anticipator ✔️It keeps the heat from over shooting
Explain two different types of differentials used by thermostat ✔️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 ✔️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 ✔️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 ✔️Maintain boiler pressure clean sharp cut off and Supply oil.
What must be done prior to installing an oil burner ✔️One must get a permit before installing an oil burner
What are the four no heat call steps ✔️#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 ✔️No openings within two feet of vent
What is the safety timing of a gas pilot ignition ✔️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 ✔️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 ✔️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 ✔️A 1/16 inch plug to convert 1 pipe to a 2 pipe system
What is a power burner ✔️Anything that's not a vaporizing oil burner
Can a series 10 .3 wire thermostat be used with a 2-wire control? explain. ✔️Yes by jumping out the ground
Can a series 80 dryer thermostat be wired into a 3-wire control ✔️No
What is the greatest loss in a boiler ✔️Heat loss through the chimney
How high on the wall should thermostat be installed ✔️5 feet from the ground
What must be checked while installing a Mercury bulb thermostat ✔️Must be checked to be level
Why are low voltage thermostats use more than line voltage ones ✔️Safety
NEW VERSION!
What is the voltage found at the TT terminals ✔️24 volts
What are the 8 steps of a no heat call ✔️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 ✔️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. ✔️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 ✔️The stack relay is operating correctly
What is normal pump pressure ✔️100 PSI
How is combustion achieved ✔️Atomization, air, ignition.
What is primary air and secondary air ✔️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 ✔️It shall be secured attached to a non-combustible supports
What is the wire gauge use an oil burner circuits ✔️14 gauge 15 amp fuse
How is an oil burner wired ✔️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 ✔️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 ✔️the ignition Transformer drops out of the circuit once a flame is established
What are the elements are found in fuel oil number 2 ✔️Carbon hydrogen oxygen and hydrocarbons
What is a BTU ✔️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 ✔️140,000 BTUs
What determines the gallons per hour of a nozzle ✔️Manufacturer ,the bore size, pump pressure or Orphus
What is a series circuit ✔️an electrical or piping circuit where all of the current or fluid flows through the entire circuit
What is a degree day ✔️The average temp for the day - 65
What is the flash point of number 2 fuel oil ✔️115 degrees Fahrenheit
When does the law require a combustion efficiency test ✔️During installation and maintenance
What controller shuts off the oil burner in the event of excessive temperature in the appliance ✔️The high limit switch
What are the three functions of an oil pump ✔️1- filters 2- pressurizes 3- pumps fuel to the burner
How is an oil burner circuit wired ✔️In series on its own circuit
How is oil flow adjusted in a rotary burner ✔️Constant level and metering valve
What does InStep mean ✔️The stack relay is operating properly
How is combustion achieved ✔️Atomization ,air ,ignition.
What is the minimum size oil line for residential burners ✔️3/8 inch
, How is safety timing checked on a stack relay switch ✔️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 ✔️45 seconds
What control devices are found on gravity feed burners ✔️Constant level valve
When is a vent pipe required ✔️When the Supply tank is larger than 10 gallons
What is the time limit for submitting certificate of completion ✔️Within 72 hours
What kinds of joints are used on tank installations ✔️Swing joints
Why are swing joints used on oil tank installations ✔️Shifting with in the tank
What is the minimum distance that the burner can be from the tank ✔️5 feet
How many gallons of oil can be stored without a permit ✔️10 gallons or less
How much outside or replacement air is needed in a confined space ✔️1 square inch for 2000 BTUs
How much outside air or replacement air is needed in a boiler room in of tight Construction ✔️1 square inch per 1000 BTUs
What is the purpose of a heat anticipator ✔️It keeps the heat from over shooting
Explain two different types of differentials used by thermostat ✔️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 ✔️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 ✔️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 ✔️Maintain boiler pressure clean sharp cut off and Supply oil.
What must be done prior to installing an oil burner ✔️One must get a permit before installing an oil burner
What are the four no heat call steps ✔️#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 ✔️No openings within two feet of vent
What is the safety timing of a gas pilot ignition ✔️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 ✔️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 ✔️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 ✔️A 1/16 inch plug to convert 1 pipe to a 2 pipe system
What is a power burner ✔️Anything that's not a vaporizing oil burner
Can a series 10 .3 wire thermostat be used with a 2-wire control? explain. ✔️Yes by jumping out the ground
Can a series 80 dryer thermostat be wired into a 3-wire control ✔️No
What is the greatest loss in a boiler ✔️Heat loss through the chimney
How high on the wall should thermostat be installed ✔️5 feet from the ground
What must be checked while installing a Mercury bulb thermostat ✔️Must be checked to be level
Why are low voltage thermostats use more than line voltage ones ✔️Safety
