RHODE ISLAND JOURNEYMAN PLUMBER EXAM
ACTUAL EXAM PAPER 2026 FULL QUESTIONS
AND CORRECT ANSWERS ALREADY PASSED
◉ Hubless Fittings. (i) There shall be a hanger installed at. Answer: -
each change of direction
-When joining three or more fittings, there shall be a minimum of
one hanger for every three-feet or part thereof
◉ Water Service Piping (Outside Building). The materials used shall
be those specified by the. Answer: local municipality
◉ The piping that penetrates concrete floors slabs or concrete walls
shall be provided with sleeves. Maintain an annular space of.
Answer: one-inch between the pipe and sleeve.
◉ The developed length distance from the fixture outlet to the trap
weir shall not exceed. Answer: 24 inches
◉ The piping shall be connected to cast iron soil pipe hubs using
oakum and no less than. Answer: one-inch of molten lead
,◉ Caulk the joint along the inside and outside edges after it has
cooled for. Answer: 4 minuets
◉ Thermal Expansion. . Thermal expansion of PVC pipe occurs at the
rate of approximately?. Answer: 3/8" inch per ten feet length per
100°F temperature change
◉ In a PVC-DWV system an expansion allowance of. Answer: ½ inch
per ten feet length of pipe is required
◉ Expansion joints shall be provided. Answer: at every other branch
interval up to and including ten stories in height.
◉ The expansion fitting shall be installed in a. Answer: accessible
location in horizontal runs exceeding 20 feet in length.
◉ The piping that penetrates concrete floors slabs or concrete walls
shall be provided with sleeves. Maintain an annular space of.
Answer: one-inch between the pipe and sleeve.
◉ Piping Trench Installations.Using sand or other fine granular
material, compact and backfill around the pipe to a point at least.
Answer: six-inches over the crown of the pipe.
,◉ nstallation Through Fire-walls or Rated Fire Separation Walls. a.
When piping passes through a rated fire separation wall or
enclosure to another dwelling unit or space, the pipe shall be
encased or shielded by a metal sleeve extended. Answer: 20 inches
on each side of the wall, floor or ceiling. The metal sleeve shall be 18
gauge
◉ Installation. ABS-DWV pipe. Answer: Expansion joints are not
required
◉ Urinal Wastes. Urinal waste branches and urinal fixture wastes
shall conform to the following: 1. Answer: They shall be made of: a.
extra heavy or service weight cast iron soil pipe and fittings with
caulked joints
b. threaded cast iron pipe with cast iron drainage fittings; or
c. iron size copper or brass pipe with cast brass drainage fittings.
◉ sumps and Tanks for Sewage. All sumps and tanks for receiving
sewage removed by mechanical or ejector methods, shall be
constructed as follows:. Answer: 1. Concrete. Three-inch minimum
wall.
2. Cast Iron. Minimum ¼ inch thickness.
3. Steel.
, a. Minimum 3/8" inch thickness for above ground. b. For below
ground installation the sump or tank shall be encased in concrete
having a thickness of at least three-inches
◉ Vacuum Drainage System.. Answer: piping arrangements and
vacuum pumps that are designed and installed in compliance with
the manufacturer's recommendations
◉ Caulked Cast Iron Soil Pipe. Every lead caulked joint for cast iron
bell and spigot soil pipe shall:. Answer: 1. be firmly packed with
oakum or hemp;
2. be filled with molten lead that is not less than one inch-deep and
does not extend more than c inch below the rim of the hub;
3. not have paint, varnish, or other coatings on the jointing material
until after the joint has been tested and approved; and
4. have lead run in one continuous pour and shall have the lead
caulked tight
◉ Mechanical (Flexible or Slip Joint). 1. Cast Iron Pipe or Ductile Iron
Pipe. Every mechanical joint in cast iron pipe or ductile iron pipe
shall be. Answer: a. made with a flanged collar, rubber ring gasket,
and appropriate number of securing bolts; or
b. made with a preformed molded ring secured by pulling the pipe
together in such a way as to compress the molded ring
ACTUAL EXAM PAPER 2026 FULL QUESTIONS
AND CORRECT ANSWERS ALREADY PASSED
◉ Hubless Fittings. (i) There shall be a hanger installed at. Answer: -
each change of direction
-When joining three or more fittings, there shall be a minimum of
one hanger for every three-feet or part thereof
◉ Water Service Piping (Outside Building). The materials used shall
be those specified by the. Answer: local municipality
◉ The piping that penetrates concrete floors slabs or concrete walls
shall be provided with sleeves. Maintain an annular space of.
Answer: one-inch between the pipe and sleeve.
◉ The developed length distance from the fixture outlet to the trap
weir shall not exceed. Answer: 24 inches
◉ The piping shall be connected to cast iron soil pipe hubs using
oakum and no less than. Answer: one-inch of molten lead
,◉ Caulk the joint along the inside and outside edges after it has
cooled for. Answer: 4 minuets
◉ Thermal Expansion. . Thermal expansion of PVC pipe occurs at the
rate of approximately?. Answer: 3/8" inch per ten feet length per
100°F temperature change
◉ In a PVC-DWV system an expansion allowance of. Answer: ½ inch
per ten feet length of pipe is required
◉ Expansion joints shall be provided. Answer: at every other branch
interval up to and including ten stories in height.
◉ The expansion fitting shall be installed in a. Answer: accessible
location in horizontal runs exceeding 20 feet in length.
◉ The piping that penetrates concrete floors slabs or concrete walls
shall be provided with sleeves. Maintain an annular space of.
Answer: one-inch between the pipe and sleeve.
◉ Piping Trench Installations.Using sand or other fine granular
material, compact and backfill around the pipe to a point at least.
Answer: six-inches over the crown of the pipe.
,◉ nstallation Through Fire-walls or Rated Fire Separation Walls. a.
When piping passes through a rated fire separation wall or
enclosure to another dwelling unit or space, the pipe shall be
encased or shielded by a metal sleeve extended. Answer: 20 inches
on each side of the wall, floor or ceiling. The metal sleeve shall be 18
gauge
◉ Installation. ABS-DWV pipe. Answer: Expansion joints are not
required
◉ Urinal Wastes. Urinal waste branches and urinal fixture wastes
shall conform to the following: 1. Answer: They shall be made of: a.
extra heavy or service weight cast iron soil pipe and fittings with
caulked joints
b. threaded cast iron pipe with cast iron drainage fittings; or
c. iron size copper or brass pipe with cast brass drainage fittings.
◉ sumps and Tanks for Sewage. All sumps and tanks for receiving
sewage removed by mechanical or ejector methods, shall be
constructed as follows:. Answer: 1. Concrete. Three-inch minimum
wall.
2. Cast Iron. Minimum ¼ inch thickness.
3. Steel.
, a. Minimum 3/8" inch thickness for above ground. b. For below
ground installation the sump or tank shall be encased in concrete
having a thickness of at least three-inches
◉ Vacuum Drainage System.. Answer: piping arrangements and
vacuum pumps that are designed and installed in compliance with
the manufacturer's recommendations
◉ Caulked Cast Iron Soil Pipe. Every lead caulked joint for cast iron
bell and spigot soil pipe shall:. Answer: 1. be firmly packed with
oakum or hemp;
2. be filled with molten lead that is not less than one inch-deep and
does not extend more than c inch below the rim of the hub;
3. not have paint, varnish, or other coatings on the jointing material
until after the joint has been tested and approved; and
4. have lead run in one continuous pour and shall have the lead
caulked tight
◉ Mechanical (Flexible or Slip Joint). 1. Cast Iron Pipe or Ductile Iron
Pipe. Every mechanical joint in cast iron pipe or ductile iron pipe
shall be. Answer: a. made with a flanged collar, rubber ring gasket,
and appropriate number of securing bolts; or
b. made with a preformed molded ring secured by pulling the pipe
together in such a way as to compress the molded ring
