RHODE ISLAND JOURNEYMAN PLUMBER EXAM
FINAL PAPER 2026 EXAM
◉ 3" below the installation level. Answer: When rock is encountered
in trenching rock will be removed to a minimum of:
◉ 4'. Answer: Hanger spacing for ABS pipe is:
◉ 10' head. Answer: Water testing of a drainage system requires a:
◉ 2.6 inches of rain per hour. Answer: Sizing of storm drains for
Rhode Island is based on:
◉ 5. Answer: The Board of Appeals consists of how many members?
◉ 85 degrees to 110 degrees. Answer: Tempered water is water
having a temperature range of:
◉ Driven. Answer: A casing is not required with what type of well?
◉ Integrally installed air gap or backflow preventer. Answer:
Backflow for an automatic clothes washer is prevented by:
,◉ Air Break. Answer: Waste from an automatic clothes washer
discharges through an
◉ Air Gap or Backflow Preventer. Answer: Water connection to a
bidet protected by an
◉ Air Gap or Backflow Preventer. Answer: Water connection to a
dishwasher is protected by an
◉ 4". Answer: Roof drains shall have strainers extending above the
roof a minimum of:
◉ There are 15 or less employees. Answer: Separate toilet facilities
are not required when
◉ 1/4". Answer: Minimum pitch for 2 1/2" piping and smaller is:
◉ 1 1/2". Answer: Minimum size wet vent piping is:
◉ 1/2" OD. Answer: What is the minimum supply tube to a one-
piece toilet?
, ◉ Conductor. Answer: What is the line in the building that carries
water from the roof to the sewer called?
◉ 1 1/2". Answer: What is the minimum size outlet for a shower in
RI?
◉ 18" and 42". Answer: What is the minimum and maximum length
of a waste stack to a trap weir?
◉ A pressure reducing backflow preventer. Answer: What must be
installed before connecting and irrigation system to a potable water
supply?
◉ Always follow the manufacturers instructions. Answer: Can
combustible liquids that condense be allowed down the public
sewer?
◉ It should be sized to the outlet of the food waste grinder. Answer:
How should a grease trap be sized when hooking it up to a
commercial food waste grinder?
◉ 4.5' underground. Answer: Water pipe should be buried
____________ feet underground.
FINAL PAPER 2026 EXAM
◉ 3" below the installation level. Answer: When rock is encountered
in trenching rock will be removed to a minimum of:
◉ 4'. Answer: Hanger spacing for ABS pipe is:
◉ 10' head. Answer: Water testing of a drainage system requires a:
◉ 2.6 inches of rain per hour. Answer: Sizing of storm drains for
Rhode Island is based on:
◉ 5. Answer: The Board of Appeals consists of how many members?
◉ 85 degrees to 110 degrees. Answer: Tempered water is water
having a temperature range of:
◉ Driven. Answer: A casing is not required with what type of well?
◉ Integrally installed air gap or backflow preventer. Answer:
Backflow for an automatic clothes washer is prevented by:
,◉ Air Break. Answer: Waste from an automatic clothes washer
discharges through an
◉ Air Gap or Backflow Preventer. Answer: Water connection to a
bidet protected by an
◉ Air Gap or Backflow Preventer. Answer: Water connection to a
dishwasher is protected by an
◉ 4". Answer: Roof drains shall have strainers extending above the
roof a minimum of:
◉ There are 15 or less employees. Answer: Separate toilet facilities
are not required when
◉ 1/4". Answer: Minimum pitch for 2 1/2" piping and smaller is:
◉ 1 1/2". Answer: Minimum size wet vent piping is:
◉ 1/2" OD. Answer: What is the minimum supply tube to a one-
piece toilet?
, ◉ Conductor. Answer: What is the line in the building that carries
water from the roof to the sewer called?
◉ 1 1/2". Answer: What is the minimum size outlet for a shower in
RI?
◉ 18" and 42". Answer: What is the minimum and maximum length
of a waste stack to a trap weir?
◉ A pressure reducing backflow preventer. Answer: What must be
installed before connecting and irrigation system to a potable water
supply?
◉ Always follow the manufacturers instructions. Answer: Can
combustible liquids that condense be allowed down the public
sewer?
◉ It should be sized to the outlet of the food waste grinder. Answer:
How should a grease trap be sized when hooking it up to a
commercial food waste grinder?
◉ 4.5' underground. Answer: Water pipe should be buried
____________ feet underground.
