TEST Oil Burner License Prep
2026 Local 537 Exam
Questions and Answers 100%
PASS
What type of system does the ignition stay on?—ANSWER-Intermittent
How many screws are required on a flue pipe connector?—ANSWER-3
Is ultra low sulfur fuel more efficient—ANSWER-Yes
What is the best way to blow out an oil supply line?—ANSWER-Hand pump
(safest way)
What is the primary voltage of an ignition transformer?—ANSWER-120v
What is the maximum voltage to ground?—ANSWER-150v
Is steam pressure over 15psi high pressure—ANSWER-Yes
What is the secondary voltage on an ignition transformer—ANSWER-
10,000v for an iron clad (electronic is 10k to 14k volts)
Thermal valve melts at what temperature?—ANSWER-165°F
, Where are the thermal valves required?—ANSWER-2 are required, one at the
tank outlet and one at the pump inlet. (A thermal valve is a spring loaded
valve with a melt able solder)
If you have a residential oil burner that blows a 15 amp fuse what should
you do?—ANSWER-Use an amp probe
Who approves oil burner installations?—ANSWER-Local Fire department
What is the largest oil tank that can be exposed?—ANSWER-660 gal
What is the minimum vent and fill size for a 660 gal tank?—ANSWER-1 1/4
To avoid condensation in flue pipe on an oil fired appliance, what should the
minimum gross stack temp be?—ANSWER-350°F (stack-primary air = net
stack)
What does a OSV do?—ANSWER-Prevents oil leaks on and underground
tank. (OSV - oil safety valve. Opens with a vacuum)
How many thermal valves are required on a new install?—ANSWER-2
What is the only test that can be performed in the field?—ANSWER-
Combustion analysis
Fuel pressure is set at what psi?—ANSWER-100psi
Are test wells allowed on underground tanks?—ANSWER-No
What is the maximum safety timing on a switch?—ANSWER-45sec (new
code states 15 sec)
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Katelyn Whitman
2026 Local 537 Exam
Questions and Answers 100%
PASS
What type of system does the ignition stay on?—ANSWER-Intermittent
How many screws are required on a flue pipe connector?—ANSWER-3
Is ultra low sulfur fuel more efficient—ANSWER-Yes
What is the best way to blow out an oil supply line?—ANSWER-Hand pump
(safest way)
What is the primary voltage of an ignition transformer?—ANSWER-120v
What is the maximum voltage to ground?—ANSWER-150v
Is steam pressure over 15psi high pressure—ANSWER-Yes
What is the secondary voltage on an ignition transformer—ANSWER-
10,000v for an iron clad (electronic is 10k to 14k volts)
Thermal valve melts at what temperature?—ANSWER-165°F
, Where are the thermal valves required?—ANSWER-2 are required, one at the
tank outlet and one at the pump inlet. (A thermal valve is a spring loaded
valve with a melt able solder)
If you have a residential oil burner that blows a 15 amp fuse what should
you do?—ANSWER-Use an amp probe
Who approves oil burner installations?—ANSWER-Local Fire department
What is the largest oil tank that can be exposed?—ANSWER-660 gal
What is the minimum vent and fill size for a 660 gal tank?—ANSWER-1 1/4
To avoid condensation in flue pipe on an oil fired appliance, what should the
minimum gross stack temp be?—ANSWER-350°F (stack-primary air = net
stack)
What does a OSV do?—ANSWER-Prevents oil leaks on and underground
tank. (OSV - oil safety valve. Opens with a vacuum)
How many thermal valves are required on a new install?—ANSWER-2
What is the only test that can be performed in the field?—ANSWER-
Combustion analysis
Fuel pressure is set at what psi?—ANSWER-100psi
Are test wells allowed on underground tanks?—ANSWER-No
What is the maximum safety timing on a switch?—ANSWER-45sec (new
code states 15 sec)
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Katelyn Whitman
