Oil Burner License Exam Questions With Verified Answers
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Course
Oil Burner License
Institution
Oil Burner License
Oil Burner License Exam Questions With
Verified Answers
What is the first thing a tech should do when arriving at a no combustion call? - answerAsk
how many times the customer reset the unit.
What is the best long term solution for preventing a clogged nozzle? - answer-Remove any
underground s...
Oil Burner License Exam Questions With
Verified Answers
What is the first thing a tech should do when arriving at a no combustion call? - answer✔Ask
how many times the customer reset the unit.
What is the best long term solution for preventing a clogged nozzle? - answer✔-Remove any
underground storage tanks.
-Install a quality oil filter.
-Cut the suction line 10" above the tank outlet to prevent sludge.
Hot water and steam valves are interchangeable. - answer✔False
When in the presence of a flame, a cad cell normally reads.. - answer✔300-1000 ohms
If a pump is used to bring oil to a level higher than the tank, an oil safety valve is required. -
answer✔True
On a call where a hydronic heat system is putting out too much heat on the stack, the issue may
be.. - answer✔-Too much draft.
-Not enough combustion air in the equipment room.
-Air leakage into chamber.
A high CO2 reading is caused by.. - answer✔Incomplete combustion
An often overlooked cause of a high CO2 reading is.. - answer✔Not enough combustion air in
the equipment room.
When multiple pumps are wired together in a heating system, they should be wired in.. -
answer✔parallel
In a series circuit.. - answer✔Current has one path.
When 2 burners are connected to the same chimney.. - answer✔Sufficient draft must be obtained
to operate both units.
The ignition transformer is located.. - answer✔In the primary control.
When safeties are wired in series one safety will affect the operation of the others. -
answer✔True
A stack switch is no longer allowed to be installed or replaced because.. - answer✔It's safety
cutout time is higher than what is now required.
What is a power venter and what does it do? - answer✔An electrical device that sends fluid gases
into the chimney connector.
A burner in a confined space using 1 GPH of #2 fuel oil requires what size permanent opening
for combustion air? - answer✔140"
The difference between an adjustable flame retention burner and a fixed flame retention burner
is? - answer✔Air inlets can be adjusted
Ignitor position can be adjusted
Fuel can be adjusted
Oil tank design, construction, installation and testing shall be in accordance with.. - answer✔527
CMR 9.0
Heat is a form of.. - answer✔Energy
If a burner is operational but the circulator pump isn't running.. - answer✔The pump relay is not
working correctly
A method of dealing with low viscosity/cold temps with #2 oil? - answer✔Increase pump
pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? - answer✔Thermal safety valve
Where do you obtain an installation permit for oil burners? - answer✔Fire Dept
How many Btu's approximately in 1 gal of #2 fuel oil? - answer✔140,000 btu's
Solid state ignition is superior to spark because - answer✔It is not affected by reduced voltage
What is an installation? - answer✔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? - answer✔4'
A pump in a one pipe system that is full of air can be self purged. - answer✔False
List the minimum size of an oil supply line. - answer✔3/8"
A material with electrons so loose it allows voltage to pass with little or no resistance.. -
answer✔Is a conductor
If a high limit goes off, what does a low water switch do? - answer✔Maintains water temperature
What is flashpoint an indicator of? - answer✔Minimum temperature oil will ignite but not
continue to burn.
What travels on the inside of the wire? - answer✔Volts
What does readily accessible mean pertaining to oil burning equipment? - answer✔Capable of
being reached easily and quickly for operation, maintenance or inspection.
What is the minimum vent pipe on an oil tank? - answer✔1 1/4"
What causes corrosion on a flue pipe? - answer✔When the flue pipe is operating below the dew
point temperature.
What are the methods to prevent oil waxing? - answer✔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? - answer✔660 gal
What is the purpose of a delayed oil valve? - answer✔Allows time for the oil pump to get up to
speed.
Delays oil flow to the nozzle.
On a call where a hydronic heat system is putting out too much heat, the issue could be? -
answer✔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? - answer✔1600 ohms
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