Oil Burner License Exam- Questions and Answers 100%
Solved
A method of dealing with low viscosity/cold temps with #2 oil? Correct Ans-Increase pump
pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? Correct Ans-Thermal safety valve
Where do you obtain an installation permit for oil burners? Correct Ans-Fire Dept
How many Btu's approximately in 1 gal of #2 fuel oil? Correct Ans-140,000 btu's
Solid state ignition is superior to spark because Correct Ans-It is not affected by reduced
voltage
What is an installation? Correct Ans-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 from an opening or window? Correct Ans-4'
A pump in a one pipe system that is full of air can be self purged. Correct Ans-False
List the minimum size of an oil supply line. Correct Ans-3/8"
A material with electrons so loose it allows voltage to pass with little or no resistance..
Correct Ans-Is a conductor
If a high limit goes off, what does a low water switch do? Correct Ans-Maintains water
temperature
, Oil Burner License Exam- Questions and Answers 100%
Solved
What is flashpoint an indicator of? Correct Ans-Minimum temperature oil will ignite but
not continue to burn.
What travels on the inside of the wire? Correct Ans-Volts
What does readily accessible mean pertaining to oil burning equipment? Correct Ans-
Capable of being reached easily and quickly for operation, maintenance or inspection.
What is the minimum vent pipe on an oil tank? Correct Ans-1 1/4"
What causes corrosion on a flue pipe? Correct Ans-When the flue pipe is operating below
the dew point temperature.
What are the methods to prevent oil waxing? Correct Ans-Put additives in the fuel.
Add an oil line heater.
Cut with #1 fuel or kerosene.
What is the maximum tank size allowed inside unenclosed? Correct Ans-660 gal
What is the purpose of a delayed oil valve? Correct Ans-Allows time for the oil pump to get
up to speed.
Delays oil flow to the nozzle.
, Oil Burner License Exam- Questions and Answers 100%
Solved
On a call where a hydronic heat system is putting out too much heat, the issue could be?
Correct Ans-A shorted out thermostat.
When measuring a cad cell with the burner running and the ff terminals jumped out, what
should the cad cell reading be? Correct Ans-1600 ohms
What are the possible causes of soot at or near the power venter? Correct Ans-Incomplete
combustion
What is a possible side effect of air in a nozzle line? Correct Ans-Soot
What is the cause if the cad cell is tripped on safety? Correct Ans-Dirty cad cell
Faulty cad cell
No flame present
If a boiler is running but the water temperature is low? Correct Ans-Undersized nozzle
If a boiler is at 30 psi and the relief valve opens? Correct Ans-Expansion tank is undersized
Tank bladder is perforated
Tankless coil is leaking
Atomizing type burners were designed to burn which type of fuel? Correct Ans-#2 oil
Solved
A method of dealing with low viscosity/cold temps with #2 oil? Correct Ans-Increase pump
pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? Correct Ans-Thermal safety valve
Where do you obtain an installation permit for oil burners? Correct Ans-Fire Dept
How many Btu's approximately in 1 gal of #2 fuel oil? Correct Ans-140,000 btu's
Solid state ignition is superior to spark because Correct Ans-It is not affected by reduced
voltage
What is an installation? Correct Ans-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 from an opening or window? Correct Ans-4'
A pump in a one pipe system that is full of air can be self purged. Correct Ans-False
List the minimum size of an oil supply line. Correct Ans-3/8"
A material with electrons so loose it allows voltage to pass with little or no resistance..
Correct Ans-Is a conductor
If a high limit goes off, what does a low water switch do? Correct Ans-Maintains water
temperature
, Oil Burner License Exam- Questions and Answers 100%
Solved
What is flashpoint an indicator of? Correct Ans-Minimum temperature oil will ignite but
not continue to burn.
What travels on the inside of the wire? Correct Ans-Volts
What does readily accessible mean pertaining to oil burning equipment? Correct Ans-
Capable of being reached easily and quickly for operation, maintenance or inspection.
What is the minimum vent pipe on an oil tank? Correct Ans-1 1/4"
What causes corrosion on a flue pipe? Correct Ans-When the flue pipe is operating below
the dew point temperature.
What are the methods to prevent oil waxing? Correct Ans-Put additives in the fuel.
Add an oil line heater.
Cut with #1 fuel or kerosene.
What is the maximum tank size allowed inside unenclosed? Correct Ans-660 gal
What is the purpose of a delayed oil valve? Correct Ans-Allows time for the oil pump to get
up to speed.
Delays oil flow to the nozzle.
, Oil Burner License Exam- Questions and Answers 100%
Solved
On a call where a hydronic heat system is putting out too much heat, the issue could be?
Correct Ans-A shorted out thermostat.
When measuring a cad cell with the burner running and the ff terminals jumped out, what
should the cad cell reading be? Correct Ans-1600 ohms
What are the possible causes of soot at or near the power venter? Correct Ans-Incomplete
combustion
What is a possible side effect of air in a nozzle line? Correct Ans-Soot
What is the cause if the cad cell is tripped on safety? Correct Ans-Dirty cad cell
Faulty cad cell
No flame present
If a boiler is running but the water temperature is low? Correct Ans-Undersized nozzle
If a boiler is at 30 psi and the relief valve opens? Correct Ans-Expansion tank is undersized
Tank bladder is perforated
Tankless coil is leaking
Atomizing type burners were designed to burn which type of fuel? Correct Ans-#2 oil
