Oil Burner License Exam
Questions and Answers (Already
Graded A+)
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.
Fuel units are generally set at the factory at: - ANSWER-100 psi
The oil burner nozzle in a high pressure burner performs the following
functions: - ANSWER--Atomizes the oil
-Provides a pattern of oil spray
-Delivers a fixed amount of oil
The nozzle flow rate, spray angle and pattern are directly related to: -
ANSWER--Tangential slots
-Swirl chamber
-Orifice
Cold oil or high viscosity problems may be eliminated by: - ANSWER--
Increasing the pump pressure and reducing the nozzle size
-Installing a nozzle line pre-heater
, 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
Questions and Answers (Already
Graded A+)
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.
Fuel units are generally set at the factory at: - ANSWER-100 psi
The oil burner nozzle in a high pressure burner performs the following
functions: - ANSWER--Atomizes the oil
-Provides a pattern of oil spray
-Delivers a fixed amount of oil
The nozzle flow rate, spray angle and pattern are directly related to: -
ANSWER--Tangential slots
-Swirl chamber
-Orifice
Cold oil or high viscosity problems may be eliminated by: - ANSWER--
Increasing the pump pressure and reducing the nozzle size
-Installing a nozzle line pre-heater
, 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
