OIL HEAT EXAM QUESTIONS AND
ANSWERS. VERIFIED 2025/2026.
What must be done before removing an oil tank and where is it obtained from? - ANS pull
the permits and obtain them from the fire department
No more than how many gallon oil TanK (1) can be exposed in a building? - ANS 660 gallons
Exposed tanks(more than one) in a building cannot be more than how many gallons? -
ANS 1320 gallons
All oil tanks over how many gallons must have an open air pipe? - ANS 10 gallons
All oil tanks over 10 gallons must have an open air pipe, minimum pipe size of 1 and 1/4, The fill
pipe cannot exceed the size of vent pipe both must terminate? - ANS outside building
What is the maximum total capacity of all the tanks located above the lowest level of a building
cannot exceed how many gallons? - ANS 60 gallons
The maximum total capacity of all the tanks located above the lowest level of a building has an
exception what is it? - ANS A tank on slab adjacent to the first floor
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,what cant be used for fill or vent piping? - ANS plastic pipe, solder copper tubing and fittings
What must be done with any unused openings of an oil tank? - ANS made vapor tight
All oil tanks over 10 gallons must have an open air vent pipe and a minimum pipe size of? -
ANS 1 1/4
All oil tanks with fill and vent pipes must have what type of gauging ? - ANS Visual and
Audible
Vent pipe must terminate at least how many feet above grade? - ANS 3 ft or above the
highest snow level
Massachusetts flash point is - ANS 115 F
Massachusetts flame point is - ANS 635F
Your vent pipe must terminate _______ feet vertically and ____ feet horizontally from any
building opening - ANS 2ft, 2ft
What must vent pipe have on the termination outside building? - ANS Water tight cap
Fill and vent pipes are slopped in which direction - ANS Towards tank
Are fixed sash (no openings) windows considered a building opening to apply to fill and vent
piping? - ANS No
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, A space supplying air for combustion whose volume is less than 50 cubic feet per 1000 BTU per
hour input of all appliances in the space. - ANS Confined space
What is the maximum voltage used for oil burner circuit - ANS 150 Volts
Piping used for oil burner oil lines ( except for conversion range burners) shall not be smaller
than what size? - ANS 3/8 inch nominal pipe or tubing
What is the exception to not using compression fittings on oil supply lines? - ANS Gauge able
2 ferrule swage type fittings
Before an oil tank is removed, is a permit need to be obtained? - ANS Yes
Can Teflon tape be used on an oil supply lines - ANS No
Are compression fittings acceptable on oil supply lines - ANS No
Is a draft control damper required - ANS Yes
Does oil tank under 10 gallons used with an oil burner need an oil permit? - ANS No
Outside oil tanks must be mounted on what? - ANS A slab 4 inch thick and extends 8 inch all
around tank with one pour
Why would all the piping need to come off the top of the tank - ANS Any tank that may freeze
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS. VERIFIED 2025/2026.
What must be done before removing an oil tank and where is it obtained from? - ANS pull
the permits and obtain them from the fire department
No more than how many gallon oil TanK (1) can be exposed in a building? - ANS 660 gallons
Exposed tanks(more than one) in a building cannot be more than how many gallons? -
ANS 1320 gallons
All oil tanks over how many gallons must have an open air pipe? - ANS 10 gallons
All oil tanks over 10 gallons must have an open air pipe, minimum pipe size of 1 and 1/4, The fill
pipe cannot exceed the size of vent pipe both must terminate? - ANS outside building
What is the maximum total capacity of all the tanks located above the lowest level of a building
cannot exceed how many gallons? - ANS 60 gallons
The maximum total capacity of all the tanks located above the lowest level of a building has an
exception what is it? - ANS A tank on slab adjacent to the first floor
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,what cant be used for fill or vent piping? - ANS plastic pipe, solder copper tubing and fittings
What must be done with any unused openings of an oil tank? - ANS made vapor tight
All oil tanks over 10 gallons must have an open air vent pipe and a minimum pipe size of? -
ANS 1 1/4
All oil tanks with fill and vent pipes must have what type of gauging ? - ANS Visual and
Audible
Vent pipe must terminate at least how many feet above grade? - ANS 3 ft or above the
highest snow level
Massachusetts flash point is - ANS 115 F
Massachusetts flame point is - ANS 635F
Your vent pipe must terminate _______ feet vertically and ____ feet horizontally from any
building opening - ANS 2ft, 2ft
What must vent pipe have on the termination outside building? - ANS Water tight cap
Fill and vent pipes are slopped in which direction - ANS Towards tank
Are fixed sash (no openings) windows considered a building opening to apply to fill and vent
piping? - ANS No
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, A space supplying air for combustion whose volume is less than 50 cubic feet per 1000 BTU per
hour input of all appliances in the space. - ANS Confined space
What is the maximum voltage used for oil burner circuit - ANS 150 Volts
Piping used for oil burner oil lines ( except for conversion range burners) shall not be smaller
than what size? - ANS 3/8 inch nominal pipe or tubing
What is the exception to not using compression fittings on oil supply lines? - ANS Gauge able
2 ferrule swage type fittings
Before an oil tank is removed, is a permit need to be obtained? - ANS Yes
Can Teflon tape be used on an oil supply lines - ANS No
Are compression fittings acceptable on oil supply lines - ANS No
Is a draft control damper required - ANS Yes
Does oil tank under 10 gallons used with an oil burner need an oil permit? - ANS No
Outside oil tanks must be mounted on what? - ANS A slab 4 inch thick and extends 8 inch all
around tank with one pour
Why would all the piping need to come off the top of the tank - ANS Any tank that may freeze
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
