Page |1
RHODE ISLAND JOURNEYMAN PLUMBER TEST FINAL
EXAM 2025/2026 NEWEST ACTUAL EXAM WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS |ALREADY GRADED
A+|
When rock is encountered in trenching rock will be removed to a
minimum of: -ANSWERS-3" below the installation level
Hanger spacing for ABS pipe is: -ANSWERS-4'
Water testing of a drainage system requires a: -ANSWERS-10'
head
Sizing of storm drains for Rhode Island is based on: -ANSWERS-
2.6 inches of rain per hour
The Board of Appeals consists of how many members? -
ANSWERS-5
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Tempered water is water having a temperature range of: -
ANSWERS-85 degrees to 110 degrees
A casing is not required with what type of well? -ANSWERS-
Driven
Backflow for an automatic clothes washer is prevented by: -
ANSWERS-Integrally installed air gap or backflow preventer
Waste from an automatic clothes washer discharges through an -
ANSWERS-Air Break
Water connection to a bidet protected by an -ANSWERS-Air Gap
or Backflow Preventer
Water connection to a dishwasher is protected by an -ANSWERS-
Air Gap or Backflow Preventer
Roof drains shall have strainers extending above the roof a
minimum of: -ANSWERS-4"
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Separate toilet facilities are not required when -ANSWERS-There
are 15 or less employees
Minimum pitch for 2 1/2" piping and smaller is: -ANSWERS-1/4"
Minimum size wet vent piping is: -ANSWERS-1 1/2"
What is the minimum supply tube to a one-piece toilet? -
ANSWERS-1/2" OD
What is the line in the building that carries water from the roof to
the sewer called? -ANSWERS-Conductor
What is the minimum size outlet for a shower in RI? -ANSWERS-
1 1/2"
What is the minimum and maximum length of a waste stack to a
trap weir? -ANSWERS-18" and 42"
RHODE ISLAND JOURNEYMAN PLUMBER TEST FINAL
EXAM 2025/2026 NEWEST ACTUAL EXAM WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS |ALREADY GRADED
A+|
When rock is encountered in trenching rock will be removed to a
minimum of: -ANSWERS-3" below the installation level
Hanger spacing for ABS pipe is: -ANSWERS-4'
Water testing of a drainage system requires a: -ANSWERS-10'
head
Sizing of storm drains for Rhode Island is based on: -ANSWERS-
2.6 inches of rain per hour
The Board of Appeals consists of how many members? -
ANSWERS-5
, Page |2
Tempered water is water having a temperature range of: -
ANSWERS-85 degrees to 110 degrees
A casing is not required with what type of well? -ANSWERS-
Driven
Backflow for an automatic clothes washer is prevented by: -
ANSWERS-Integrally installed air gap or backflow preventer
Waste from an automatic clothes washer discharges through an -
ANSWERS-Air Break
Water connection to a bidet protected by an -ANSWERS-Air Gap
or Backflow Preventer
Water connection to a dishwasher is protected by an -ANSWERS-
Air Gap or Backflow Preventer
Roof drains shall have strainers extending above the roof a
minimum of: -ANSWERS-4"
, Page |3
Separate toilet facilities are not required when -ANSWERS-There
are 15 or less employees
Minimum pitch for 2 1/2" piping and smaller is: -ANSWERS-1/4"
Minimum size wet vent piping is: -ANSWERS-1 1/2"
What is the minimum supply tube to a one-piece toilet? -
ANSWERS-1/2" OD
What is the line in the building that carries water from the roof to
the sewer called? -ANSWERS-Conductor
What is the minimum size outlet for a shower in RI? -ANSWERS-
1 1/2"
What is the minimum and maximum length of a waste stack to a
trap weir? -ANSWERS-18" and 42"
