JOURNEYMAN OIL MAINE FUEL
BOARD RULES EXAM QUESTIONS AND
DETAILED ANSWERS. EXPERT
VERIFIED FOR GUARANTEED PASS.
What must you do if you notice code violations in a homeowners house? - ANS Notify them
and recommend ways to address them
What must be done when performing an annual tune-up on a heating system? - ANS A
combustion efficiency test and a copy must be posted on site
Whenever a furnace, direct fired hot water heater, or boiler is installed the total installation
must be brought into compliance with what requirements BEFORE appliance can be fired? -
ANS NFPA 31
When an emergency arises that does not allow adequate time to get a chimney lined/and or
repaired before installing the new heating appliance the licensee may defer the required
repairs for how long? - ANS 90 days
What must be performed before a new installation? - ANS A heat loss system design and
load calculation. A copy must be retained to be presented upon request of board inspector
All oil fired BOILERS must be provided with a properly installed and operating what? -
ANS Low Water cut off
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Where shall a low water cutoff be installed? - ANS At the level recommended by the
manufacture, but in no case below the crown sheet
If the low water cut off is not installed directly in the boiler where may it be installed? -
ANS Main supply line (vertical riser) as close to boiler as possible, or in a water column of
continuous piping attached directly to the boiler
A listed lever or wheel thermally operated oil shut off valve must be installed where? -
ANS At the burner and the oil supply tank
When outside tanks are used a thermally operated shut off valve must be installed where? -
ANS The supply line enters the inside of the building and where the oil line enters the room
where the appliance is located
When inside tanks are used and the oil supply tank is installed in a separate room, a thermally
shutoff valve must be installed where? - ANS Where the line enters the room where the
appliance is located
Whenever the oil supply is taken from the top of an oil tank a thermally operated wheel or
lever type shut-off valve must be installed where? - ANS At the tank and at the burner
What may be installed in the supply line but not a return line? - ANS A check valve
All copper oil supply and return lines must be encased in a continuous piece of no metallic
liquid tight conduit such as PVC, ENT, coated copper tubing. The end of the conduit shall not
exceed how far from any connection except the connection at fuel tank? - ANS 2 inches
In order to avoid undetected oil leaks under floors, the conduit must be how much bigger than
the supply and return lines? - ANS One pipe size larger
An oil supply line that penetrates a foundation wall must be what? - ANS Sealed
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, What must coated copper tubing have installed at the tank when used underground? -
ANS Oils Safety Valve or PRV
When an oil filter or other accessory equipment is connected to a copper piping smaller than
3/4 "and is not directly connected to the oil tank or burner the filter or other device must be
what? - ANS Rigidly supported by wall or floor mounted brackets
What must supply and return lines be connected with? - ANS Flare fittings
What fittings shall not be used unless for introduction of lines at top of the tank with a single or
double tap bushing? - ANS Compression fittings
All connections of supply or return oil lines located outside must be made with what? -
ANS Flare frost fittings
Manholes 16 inches in diameter or larger must be installed in the top of all tanks over what? -
ANS 5,000 gallons or more
All fuel oil supply tanks must be a minimum of how many feet from any gas or solid fuel burning
appliance? - ANS 5 feet
Outside oil tanks shall not be installed on what? - ANS Wood or other combustible surfaces
In all tank instillation's the pipe flanges must be in direct contact with reinforced concrete pad
or solid concrete blocks, what is not permitted? - ANS Use of shims
In order to prevent oil spills, outside tanks and piping must be located such that they are not
subject to snow or falling ice. To meet this requirement the tank and outdoor piping must be
installed where? - ANS With a protective cover over tank valve, oil filter, and any piping
which is either without structural support or not attached of side of building
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
BOARD RULES EXAM QUESTIONS AND
DETAILED ANSWERS. EXPERT
VERIFIED FOR GUARANTEED PASS.
What must you do if you notice code violations in a homeowners house? - ANS Notify them
and recommend ways to address them
What must be done when performing an annual tune-up on a heating system? - ANS A
combustion efficiency test and a copy must be posted on site
Whenever a furnace, direct fired hot water heater, or boiler is installed the total installation
must be brought into compliance with what requirements BEFORE appliance can be fired? -
ANS NFPA 31
When an emergency arises that does not allow adequate time to get a chimney lined/and or
repaired before installing the new heating appliance the licensee may defer the required
repairs for how long? - ANS 90 days
What must be performed before a new installation? - ANS A heat loss system design and
load calculation. A copy must be retained to be presented upon request of board inspector
All oil fired BOILERS must be provided with a properly installed and operating what? -
ANS Low Water cut off
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Where shall a low water cutoff be installed? - ANS At the level recommended by the
manufacture, but in no case below the crown sheet
If the low water cut off is not installed directly in the boiler where may it be installed? -
ANS Main supply line (vertical riser) as close to boiler as possible, or in a water column of
continuous piping attached directly to the boiler
A listed lever or wheel thermally operated oil shut off valve must be installed where? -
ANS At the burner and the oil supply tank
When outside tanks are used a thermally operated shut off valve must be installed where? -
ANS The supply line enters the inside of the building and where the oil line enters the room
where the appliance is located
When inside tanks are used and the oil supply tank is installed in a separate room, a thermally
shutoff valve must be installed where? - ANS Where the line enters the room where the
appliance is located
Whenever the oil supply is taken from the top of an oil tank a thermally operated wheel or
lever type shut-off valve must be installed where? - ANS At the tank and at the burner
What may be installed in the supply line but not a return line? - ANS A check valve
All copper oil supply and return lines must be encased in a continuous piece of no metallic
liquid tight conduit such as PVC, ENT, coated copper tubing. The end of the conduit shall not
exceed how far from any connection except the connection at fuel tank? - ANS 2 inches
In order to avoid undetected oil leaks under floors, the conduit must be how much bigger than
the supply and return lines? - ANS One pipe size larger
An oil supply line that penetrates a foundation wall must be what? - ANS Sealed
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, What must coated copper tubing have installed at the tank when used underground? -
ANS Oils Safety Valve or PRV
When an oil filter or other accessory equipment is connected to a copper piping smaller than
3/4 "and is not directly connected to the oil tank or burner the filter or other device must be
what? - ANS Rigidly supported by wall or floor mounted brackets
What must supply and return lines be connected with? - ANS Flare fittings
What fittings shall not be used unless for introduction of lines at top of the tank with a single or
double tap bushing? - ANS Compression fittings
All connections of supply or return oil lines located outside must be made with what? -
ANS Flare frost fittings
Manholes 16 inches in diameter or larger must be installed in the top of all tanks over what? -
ANS 5,000 gallons or more
All fuel oil supply tanks must be a minimum of how many feet from any gas or solid fuel burning
appliance? - ANS 5 feet
Outside oil tanks shall not be installed on what? - ANS Wood or other combustible surfaces
In all tank instillation's the pipe flanges must be in direct contact with reinforced concrete pad
or solid concrete blocks, what is not permitted? - ANS Use of shims
In order to prevent oil spills, outside tanks and piping must be located such that they are not
subject to snow or falling ice. To meet this requirement the tank and outdoor piping must be
installed where? - ANS With a protective cover over tank valve, oil filter, and any piping
which is either without structural support or not attached of side of building
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
