VERSIONS 2024-2025 CONTAINS
QUESTIONS AND CORRECT
UPDATED ANSWERS GRADED
A++++
Oil Burner License
What is the first thing a tech should do when arriving at a no
combustion call?
- CORRECT ANSWERS - Ask how many times the customer reset
the unit.
What is the best long term solution for preventing a clogged nozzle?
- CORRECT ANSWERS - -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.
- CORRECT ANSWERS - False
When in the presence of a flame, a cad cell normally reads..
- CORRECT ANSWERS - 300-1000 ohms
If a pump is used to bring oil to a level higher than the tank, an oil
safety valve is required.
,- CORRECT ANSWERS - True
On a call where a hydronic heat system is putting out too much heat
on the stack, the issue may be..
- CORRECT ANSWERS - -Too much draft.
-Not enough combustion air in the equipment room.
-Air leakage into chamber.
A high CO2 reading is caused by..
- CORRECT ANSWERS - Incomplete combustion
An often overlooked cause of a high CO2 reading is..
- CORRECT ANSWERS - Not enough combustion air in the
equipment room.
When multiple pumps are wired together in a heating system, they
should be wired in..
- CORRECT ANSWERS - parallel
In a series circuit..
- CORRECT ANSWERS - Current has one path.
When 2 burners are connected to the same chimney..
- CORRECT ANSWERS - Sufficient draft must be obtained to
operate both units.
,The ignition transformer is located..
- CORRECT ANSWERS - In the primary control.
When safeties are wired in series one safety will affect the operation
of the others.
- CORRECT ANSWERS - True
A stack switch is no longer allowed to be installed or replaced
because..
- CORRECT ANSWERS - It's safety cutout time is higher than what
is now required.
What is a power venter and what does it do?
- CORRECT ANSWERS - 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?
- CORRECT ANSWERS - 140"
The difference between an adjustable flame retention burner and a
fixed flame retention burner is?
- CORRECT ANSWERS - 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..
- CORRECT ANSWERS - 527 CMR 9.0
Heat is a form of..
- CORRECT ANSWERS - Energy
If a burner is operational but the circulator pump isn't running.. -
CORRECT ANSWERS - The pump relay is not working correctly
A method of dealing with low viscosity/cold temps with #2 oil? -
CORRECT ANSWERS - Increase pump pressure/ decrease nozzle
size
What is needed at the outlet of an oil tank? - CORRECT ANSWERS -
Thermal safety valve
Where do you obtain an installation permit for oil burners? -
CORRECT ANSWERS - Fire Dept
How many Btu's approximately in 1 gal of #2 fuel oil? - CORRECT
ANSWERS - 140,000 btu's
Solid state ignition is superior to spark because - CORRECT
ANSWERS - It is not affected by reduced voltage