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OIL BURNER LICENSE QUESTIONS WITH
DETAILED VERIFIED ANSWERS
What is the first thing a tech should do when arriving at a no combustion
call? Ans: Ask how many times the customer reset the unit.
What is the best long term solution for preventing a clogged nozzle?
Ans: -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. Ans: False
When in the presence of a flame, a cad cell normally reads.. Ans: 300-
1000 ohms
If a pump is used to bring oil to a level higher than the tank, an oil safety
valve is required. Ans: True
On a call where a hydronic heat system is putting out too much heat on
the stack, the issue may be.. Ans: -Too much draft.
-Not enough combustion air in the equipment room.
-Air leakage into chamber.
A high CO2 reading is caused by.. Ans: Incomplete combustion
An often overlooked cause of a high CO2 reading is.. Ans: Not enough
combustion air in the equipment room.
When multiple pumps are wired together in a heating system, they
should be wired in.. Ans: parallel
In a series circuit.. Ans: Current has one path.
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When 2 burners are connected to the same chimney.. Ans: Sufficient
draft must be obtained to operate both units.
The ignition transformer is located.. Ans: In the primary control.
When safeties are wired in series one safety will affect the operation of
the others. Ans: True
A stack switch is no longer allowed to be installed or replaced because..
Ans: It's safety cutout time is higher than what is now required.
What is a power venter and what does it do? Ans: 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? Ans: 140"
The difference between an adjustable flame retention burner and a fixed
flame retention burner is? Ans: 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.. Ans: 527 CMR 9.0
Heat is a form of.. Ans: Energy
If a burner is operational but the circulator pump isn't running.. Ans:
The pump relay is not working correctly
A method of dealing with low viscosity/cold temps with #2 oil? Ans:
Increase pump pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? Ans: Thermal safety valve
Where do you obtain an installation permit for oil burners? Ans: Fire
Dept
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How many Btu's approximately in 1 gal of #2 fuel oil? Ans: 140,000
btu's
Solid state ignition is superior to spark because Ans: It is not affected by
reduced voltage
What is an installation? 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? Ans:
4'
A pump in a one pipe system that is full of air can be self purged. Ans:
False
List the minimum size of an oil supply line. Ans: 3/8"
A material with electrons so loose it allows voltage to pass with little or
no resistance.. Ans: Is a conductor
If a high limit goes off, what does a low water switch do? Ans: Maintains
water temperature
What is flashpoint an indicator of? Ans: Minimum temperature oil will
ignite but not continue to burn.
What travels on the inside of the wire? Ans: Volts
What does readily accessible mean pertaining to oil burning equipment?
Ans: Capable of being reached easily and quickly for operation,
maintenance or inspection.
What is the minimum vent pipe on an oil tank? Ans: 1 1/4"
What causes corrosion on a flue pipe? Ans: When the flue pipe is
operating below the dew point temperature.
What are the methods to prevent oil waxing? Ans: Put additives in the
fuel.
OIL BURNER LICENSE QUESTIONS WITH
DETAILED VERIFIED ANSWERS
What is the first thing a tech should do when arriving at a no combustion
call? Ans: Ask how many times the customer reset the unit.
What is the best long term solution for preventing a clogged nozzle?
Ans: -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. Ans: False
When in the presence of a flame, a cad cell normally reads.. Ans: 300-
1000 ohms
If a pump is used to bring oil to a level higher than the tank, an oil safety
valve is required. Ans: True
On a call where a hydronic heat system is putting out too much heat on
the stack, the issue may be.. Ans: -Too much draft.
-Not enough combustion air in the equipment room.
-Air leakage into chamber.
A high CO2 reading is caused by.. Ans: Incomplete combustion
An often overlooked cause of a high CO2 reading is.. Ans: Not enough
combustion air in the equipment room.
When multiple pumps are wired together in a heating system, they
should be wired in.. Ans: parallel
In a series circuit.. Ans: Current has one path.
, Page | 2
When 2 burners are connected to the same chimney.. Ans: Sufficient
draft must be obtained to operate both units.
The ignition transformer is located.. Ans: In the primary control.
When safeties are wired in series one safety will affect the operation of
the others. Ans: True
A stack switch is no longer allowed to be installed or replaced because..
Ans: It's safety cutout time is higher than what is now required.
What is a power venter and what does it do? Ans: 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? Ans: 140"
The difference between an adjustable flame retention burner and a fixed
flame retention burner is? Ans: 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.. Ans: 527 CMR 9.0
Heat is a form of.. Ans: Energy
If a burner is operational but the circulator pump isn't running.. Ans:
The pump relay is not working correctly
A method of dealing with low viscosity/cold temps with #2 oil? Ans:
Increase pump pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? Ans: Thermal safety valve
Where do you obtain an installation permit for oil burners? Ans: Fire
Dept
, Page | 3
How many Btu's approximately in 1 gal of #2 fuel oil? Ans: 140,000
btu's
Solid state ignition is superior to spark because Ans: It is not affected by
reduced voltage
What is an installation? 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? Ans:
4'
A pump in a one pipe system that is full of air can be self purged. Ans:
False
List the minimum size of an oil supply line. Ans: 3/8"
A material with electrons so loose it allows voltage to pass with little or
no resistance.. Ans: Is a conductor
If a high limit goes off, what does a low water switch do? Ans: Maintains
water temperature
What is flashpoint an indicator of? Ans: Minimum temperature oil will
ignite but not continue to burn.
What travels on the inside of the wire? Ans: Volts
What does readily accessible mean pertaining to oil burning equipment?
Ans: Capable of being reached easily and quickly for operation,
maintenance or inspection.
What is the minimum vent pipe on an oil tank? Ans: 1 1/4"
What causes corrosion on a flue pipe? Ans: When the flue pipe is
operating below the dew point temperature.
What are the methods to prevent oil waxing? Ans: Put additives in the
fuel.
