OIL BURNERS EXAM COMPREHENSIVE STUDY
GUIDE
◉ What does L2 mean in a 115 volt circuit?
Answer: neutral
◉ How far must oil storage be from an electrical panel?
Answer: 3 feet
◉ What does the letter "N" mean?
Answer: Neutral
◉ What color wire is used for L1?
Answer: Black
◉ What color wire is used for L2?
Answer: White
◉ What color wire is used for "N"?
Answer: White
,◉ What is the fuse size in an oil burner circuit?
Answer: 15 amp
◉ What size wire is used in an oil burner circuit?
Answer: 14 gauge
◉ What is a series circuit?
Answer: one path for electricity to follow
◉ Define a parallel circuit?
Answer: more than one path for the electricity to follow
◉ What is the limit device used in a steam system?
Answer: Pressuretrol
◉ Wire with green insulation is used for what?
Answer: grounding
◉ A 15 amp electrical circuit cannot have a continuous load of more
than _______amps?
Answer: 12 amps
,◉ What is a short circuit?
Answer: power back to source with no load
◉ T/F Limit switches are wired using L2?
Answer: False
◉ Can a thermal switch be wired on L2?
Answer: No
◉ What is the purpose of a combustion chamber?
Answer: to hold heat and improve combustion
◉ What happens when an oil flame touches a cold surface?
Answer: It causes impingement
◉ What is draft?
Answer: air in motion
◉ Why do we use a barometric damper?
Answer: to regulate the draft and make it constant
◉ What is required on a unit with a power operated vent?
, Answer: an air proving switch
◉ Air leaks in the combustion chamber will cause what?
Answer: poor efficiency
◉ What is the maximum safe CO reading indoors?
Answer: 9 ppm
◉ Sulfuric acid is created when the stack temp drops below
____________degrees F.
Answer: 250 degrees
◉ A burner connected to a chimney that has -.01 of draft when cold
will need to be fitted with a _________.
Answer: draft inducer
◉ Will an increase in excess air lower or raise the stack
temperature?
Answer: raise it
◉ Will an increase in excess air lower or raise the CO2 reading?
Answer: lower it
GUIDE
◉ What does L2 mean in a 115 volt circuit?
Answer: neutral
◉ How far must oil storage be from an electrical panel?
Answer: 3 feet
◉ What does the letter "N" mean?
Answer: Neutral
◉ What color wire is used for L1?
Answer: Black
◉ What color wire is used for L2?
Answer: White
◉ What color wire is used for "N"?
Answer: White
,◉ What is the fuse size in an oil burner circuit?
Answer: 15 amp
◉ What size wire is used in an oil burner circuit?
Answer: 14 gauge
◉ What is a series circuit?
Answer: one path for electricity to follow
◉ Define a parallel circuit?
Answer: more than one path for the electricity to follow
◉ What is the limit device used in a steam system?
Answer: Pressuretrol
◉ Wire with green insulation is used for what?
Answer: grounding
◉ A 15 amp electrical circuit cannot have a continuous load of more
than _______amps?
Answer: 12 amps
,◉ What is a short circuit?
Answer: power back to source with no load
◉ T/F Limit switches are wired using L2?
Answer: False
◉ Can a thermal switch be wired on L2?
Answer: No
◉ What is the purpose of a combustion chamber?
Answer: to hold heat and improve combustion
◉ What happens when an oil flame touches a cold surface?
Answer: It causes impingement
◉ What is draft?
Answer: air in motion
◉ Why do we use a barometric damper?
Answer: to regulate the draft and make it constant
◉ What is required on a unit with a power operated vent?
, Answer: an air proving switch
◉ Air leaks in the combustion chamber will cause what?
Answer: poor efficiency
◉ What is the maximum safe CO reading indoors?
Answer: 9 ppm
◉ Sulfuric acid is created when the stack temp drops below
____________degrees F.
Answer: 250 degrees
◉ A burner connected to a chimney that has -.01 of draft when cold
will need to be fitted with a _________.
Answer: draft inducer
◉ Will an increase in excess air lower or raise the stack
temperature?
Answer: raise it
◉ Will an increase in excess air lower or raise the CO2 reading?
Answer: lower it
