Oil Burner License Exam 2025
Questions and Answers
Oil lines that are buried in concrete should: - --CORRECT ANSWER--Be sleeved
in non-metallic pipe
We install oil safety valves and oil pressure reducing valves to: - --CORRECT
ANSWER--Reduce the head pressure at the pump and prevent the tank from
siphoning in the event of a suction line leak
One advantage of a two stage fuel unit on a one pipe system application is: - --
CORRECT ANSWER--There are no advantages
If the vacuum gauge reading is substantially above the calculated reading with the
burner running, the cause could be: - --CORRECT ANSWER--Restriction in
supply line
Pulsating oil pump pressure and a pulsating fire could be caused by: - --CORRECT
ANSWER--Air leaks in the suction line
The flow rate stamped on the nozzle is based on what pressure? - --CORRECT
ANSWER--100 PSI
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,Increasing the fuel pump pressure will: - --CORRECT ANSWER--Increase the
flow rate
One gallon of #2 oil contains approximately: - --CORRECT ANSWER--140,000
BTU's
Dirt or lint build-up in the bevel of the burner fan blades will: - --CORRECT
ANSWER--Reduce the amount of combustion air
To change the air ratio for different firing rates with an adjustable head burner,
you: - --CORRECT ANSWER--Adjust the position of the drawer assembly in the
air tube
One advantage of high static pressure burners is: - --CORRECT ANSWER--They
enable boiler and furnace manufacturers to design more efficient heat exchangers
The key final adjustment for most oil burners is: - --CORRECT ANSWER--
Combustion air
All petroleum products are chemical compounds of: - --CORRECT ANSWER--
Carbon and hydrogen
To ensure clean, uncontaminated fuel reaches the oil burner: - --CORRECT
ANSWER--- Install tanks properly
- Regularly inspect them and fix minor defects before they lead to major problems
- Install a quality oil filter
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, Water in oil tanks come from: - --CORRECT ANSWER--- Condensation
- On outside tanks-broken tank gauges, loose or missing fill and vent caps
- Failing to drain water from a tank before installation
When installing a tank be sure: - --CORRECT ANSWER--- The fill and vent lines
are pitched downwards towards the tank
- To install a vent alarm and a tank gauge
- To install an oil filter and a fusible valve where required
Oil lines buried in concrete should be: - --CORRECT ANSWER--Sleeved in
plastic or PVC pipe with no fittings below the floor
The purpose of fuel units (oil pumps) is: - --CORRECT ANSWER--- Lift oil from
the tank to the burner
- Prevent contaminants that passed the external oil filter from clogging the nozzle
- Deliver oil at a constant and regulated pressure to the nozzle
True or False:
When replacing the nozzle to increase the spray pattern the electrodes must be
adjusted - --CORRECT ANSWER--False
The fusible link melts at what temperature? - --CORRECT ANSWER--165
When checking for fuel line leaks: - --CORRECT ANSWER--Vacuum check first
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
Questions and Answers
Oil lines that are buried in concrete should: - --CORRECT ANSWER--Be sleeved
in non-metallic pipe
We install oil safety valves and oil pressure reducing valves to: - --CORRECT
ANSWER--Reduce the head pressure at the pump and prevent the tank from
siphoning in the event of a suction line leak
One advantage of a two stage fuel unit on a one pipe system application is: - --
CORRECT ANSWER--There are no advantages
If the vacuum gauge reading is substantially above the calculated reading with the
burner running, the cause could be: - --CORRECT ANSWER--Restriction in
supply line
Pulsating oil pump pressure and a pulsating fire could be caused by: - --CORRECT
ANSWER--Air leaks in the suction line
The flow rate stamped on the nozzle is based on what pressure? - --CORRECT
ANSWER--100 PSI
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,Increasing the fuel pump pressure will: - --CORRECT ANSWER--Increase the
flow rate
One gallon of #2 oil contains approximately: - --CORRECT ANSWER--140,000
BTU's
Dirt or lint build-up in the bevel of the burner fan blades will: - --CORRECT
ANSWER--Reduce the amount of combustion air
To change the air ratio for different firing rates with an adjustable head burner,
you: - --CORRECT ANSWER--Adjust the position of the drawer assembly in the
air tube
One advantage of high static pressure burners is: - --CORRECT ANSWER--They
enable boiler and furnace manufacturers to design more efficient heat exchangers
The key final adjustment for most oil burners is: - --CORRECT ANSWER--
Combustion air
All petroleum products are chemical compounds of: - --CORRECT ANSWER--
Carbon and hydrogen
To ensure clean, uncontaminated fuel reaches the oil burner: - --CORRECT
ANSWER--- Install tanks properly
- Regularly inspect them and fix minor defects before they lead to major problems
- Install a quality oil filter
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, Water in oil tanks come from: - --CORRECT ANSWER--- Condensation
- On outside tanks-broken tank gauges, loose or missing fill and vent caps
- Failing to drain water from a tank before installation
When installing a tank be sure: - --CORRECT ANSWER--- The fill and vent lines
are pitched downwards towards the tank
- To install a vent alarm and a tank gauge
- To install an oil filter and a fusible valve where required
Oil lines buried in concrete should be: - --CORRECT ANSWER--Sleeved in
plastic or PVC pipe with no fittings below the floor
The purpose of fuel units (oil pumps) is: - --CORRECT ANSWER--- Lift oil from
the tank to the burner
- Prevent contaminants that passed the external oil filter from clogging the nozzle
- Deliver oil at a constant and regulated pressure to the nozzle
True or False:
When replacing the nozzle to increase the spray pattern the electrodes must be
adjusted - --CORRECT ANSWER--False
The fusible link melts at what temperature? - --CORRECT ANSWER--165
When checking for fuel line leaks: - --CORRECT ANSWER--Vacuum check first
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
