12/28/25, 2:47 PM Newest Oil Burner License Exam 2026Updated Questions and Correct Answers | Graded A+ | Newest Version (Just Released) …
Newest Oil Burner License Exam 2025 | Updated
Questions and Correct Answers | Graded A+ | Newest
Version (Just Released)
What is the first thing a tech should do Ask how many times the customer reset the unit.
when arriving at a no combustion
call?
What is the best long term solution for -Remove any underground storage tanks.
preventing a clogged nozzle? -Install a quality oil filter.
-Cut the suction line 10" above the tank outlet to
prevent sludge.
Hot water and steam valves are False
interchangeable.
When in the presence of a flame, a 300-1000 ohms
cad cell normally reads..
If a pump is used to bring oil to a level True
higher than the tank, an oil safety
valve is required.
On a call where a hydronic heat -Too much draft.
system is putting out too much heat -Not enough combustion air in the equipment room.
on the stack, the issue may be.. -Air leakage into chamber.
A high CO2 reading is caused by.. Incomplete combustion
An often overlooked cause of a high Not enough combustion air in the equipment room.
CO2 reading is..
When multiple pumps are wired parallel
together in a heating system, they
should be wired in..
In a series circuit.. Current has one path.
When 2 burners are connected to the Sufficient draft must be obtained to operate both units.
same chimney..
The ignition transformer is located.. In the primary control.
When safeties are wired in series one True
safety will affect the operation of the
,12/28/25, 2:47 PM Newest Oil Burner License Exam 2026Updated Questions and Correct Answers | Graded A+ | Newest Version (Just Released) …
A burner in a confined space using 1 140"
GPH of #2 fuel oil requires what
size permanent opening for
combustion air?
The difference between an adjustable Air inlets can be adjusted
flame retention burner and a fixed
Ignitor position can be
flame retention burner is?
adjusted Fuel can be
adjusted
Oil tank design, construction, 527 CMR 9.0
installation and testing shall be in
accordance with..
Heat is a form of.. Energy
If a burner is operational but the The pump relay is not working correctly
circulator pump isn't running..
A method of dealing with low Increase pump pressure/ decrease nozzle size
viscosity/cold temps with #2 oil?
What is needed at the outlet of an oil Thermal safety valve
tank?
Where do you obtain an installation Fire Dept
permit for oil burners?
How many Btu's approximately in 1 gal 140,000 btu's
of #2 fuel oil?
Solid state ignition is superior to spark It is not affected by reduced voltage
because
What is an installation? The complete setting in place, ready for operation, of
an oil burner appliance together with its accessories
and equipment.
How far must a power vent terminate 4'
from an opening or window?
A pump in a one pipe system that is False
full of air can be self purged.
List the minimum size of an oil supply 3/8"
line.
A material with electrons so loose it Is a conductor
, 12/28/25, 2:47 PM Newest Oil Burner License Exam 2026Updated Questions and Correct Answers | Graded A+ | Newest Version (Just Released) …
What travels on the inside of the wire? Volts
What does readily accessible mean Capable of being reached easily and quickly for
pertaining to oil burning operation, maintenance or inspection.
equipment?
What is the minimum vent pipe on an oil 1 1/4"
tank?
What causes corrosion on a flue pipe? When the flue pipe is operating below the dew point
temperature.
What are the methods to prevent oil Put additives in
waxing?
the fuel. Add an
oil line heater.
Cut with #1 fuel or kerosene.
What is the maximum tank size 660 gal
allowed inside unenclosed?
What is the purpose of a delayed oil Allows time for the oil pump to get up to speed.
valve?
Delays oil flow to the nozzle.
On a call where a hydronic heat system A shorted out thermostat.
is putting out too much heat, the
issue could be?
When measuring a cad cell with the 1600 ohms
burner running and the ff terminals
jumped out, what should the cad
cell
reading be?
What are the possible causes of soot Incomplete combustion
at or near the power venter?
What is a possible side effect of air in a Soot
nozzle line?
What is the cause if the cad cell is Dirty
tripped on safety?
cad cell
Faulty
Newest Oil Burner License Exam 2025 | Updated
Questions and Correct Answers | Graded A+ | Newest
Version (Just Released)
What is the first thing a tech should do Ask how many times the customer reset the unit.
when arriving at a no combustion
call?
What is the best long term solution for -Remove any underground storage tanks.
preventing a clogged nozzle? -Install a quality oil filter.
-Cut the suction line 10" above the tank outlet to
prevent sludge.
Hot water and steam valves are False
interchangeable.
When in the presence of a flame, a 300-1000 ohms
cad cell normally reads..
If a pump is used to bring oil to a level True
higher than the tank, an oil safety
valve is required.
On a call where a hydronic heat -Too much draft.
system is putting out too much heat -Not enough combustion air in the equipment room.
on the stack, the issue may be.. -Air leakage into chamber.
A high CO2 reading is caused by.. Incomplete combustion
An often overlooked cause of a high Not enough combustion air in the equipment room.
CO2 reading is..
When multiple pumps are wired parallel
together in a heating system, they
should be wired in..
In a series circuit.. Current has one path.
When 2 burners are connected to the Sufficient draft must be obtained to operate both units.
same chimney..
The ignition transformer is located.. In the primary control.
When safeties are wired in series one True
safety will affect the operation of the
,12/28/25, 2:47 PM Newest Oil Burner License Exam 2026Updated Questions and Correct Answers | Graded A+ | Newest Version (Just Released) …
A burner in a confined space using 1 140"
GPH of #2 fuel oil requires what
size permanent opening for
combustion air?
The difference between an adjustable Air inlets can be adjusted
flame retention burner and a fixed
Ignitor position can be
flame retention burner is?
adjusted Fuel can be
adjusted
Oil tank design, construction, 527 CMR 9.0
installation and testing shall be in
accordance with..
Heat is a form of.. Energy
If a burner is operational but the The pump relay is not working correctly
circulator pump isn't running..
A method of dealing with low Increase pump pressure/ decrease nozzle size
viscosity/cold temps with #2 oil?
What is needed at the outlet of an oil Thermal safety valve
tank?
Where do you obtain an installation Fire Dept
permit for oil burners?
How many Btu's approximately in 1 gal 140,000 btu's
of #2 fuel oil?
Solid state ignition is superior to spark It is not affected by reduced voltage
because
What is an installation? The complete setting in place, ready for operation, of
an oil burner appliance together with its accessories
and equipment.
How far must a power vent terminate 4'
from an opening or window?
A pump in a one pipe system that is False
full of air can be self purged.
List the minimum size of an oil supply 3/8"
line.
A material with electrons so loose it Is a conductor
, 12/28/25, 2:47 PM Newest Oil Burner License Exam 2026Updated Questions and Correct Answers | Graded A+ | Newest Version (Just Released) …
What travels on the inside of the wire? Volts
What does readily accessible mean Capable of being reached easily and quickly for
pertaining to oil burning operation, maintenance or inspection.
equipment?
What is the minimum vent pipe on an oil 1 1/4"
tank?
What causes corrosion on a flue pipe? When the flue pipe is operating below the dew point
temperature.
What are the methods to prevent oil Put additives in
waxing?
the fuel. Add an
oil line heater.
Cut with #1 fuel or kerosene.
What is the maximum tank size 660 gal
allowed inside unenclosed?
What is the purpose of a delayed oil Allows time for the oil pump to get up to speed.
valve?
Delays oil flow to the nozzle.
On a call where a hydronic heat system A shorted out thermostat.
is putting out too much heat, the
issue could be?
When measuring a cad cell with the 1600 ohms
burner running and the ff terminals
jumped out, what should the cad
cell
reading be?
What are the possible causes of soot Incomplete combustion
at or near the power venter?
What is a possible side effect of air in a Soot
nozzle line?
What is the cause if the cad cell is Dirty
tripped on safety?
cad cell
Faulty
