1|Page
RHODE ISLAND JOURNEYMAN/MASTER
PLUMBER EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
Type of pump that discharges waste in the sump pit and
transfers the waste to the house drain. (Max Fajardo) -
.....ANSWER ...✔✔ Sewage Ejector
Minimum dimension of a septic tank manhole. -
.....ANSWER ...✔✔ 503 mm
drain that discharges objectionable waste such as acids
and other chemicals from industrial equipment . -
.....ANSWER ...✔✔ Industrial drain
Minimum diameter of pipe of any water closet. -
.....ANSWER ...✔✔ 75 mm
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Maximum number of water closets able to discharge into
a shared 75mm diameter horizontal soil branch -
.....ANSWER ...✔✔ 3
Type of sewer that discharges both storm water and
sewage from households, rendered obsolete due to the
health hazards it poses - .....ANSWER ...✔✔
Combination Sewer
Airtight receptacle used to expedite the decomposition
of elements contained in raw sewage, usually located
1.5 meters from the property line and 15.2 meters from
the water main or any potable water source. It is
comprised of two chambers that contain anaerobic
bacteria that break down wastes. - .....ANSWER
...✔✔ Septic Tank
Term defined as the settling down or separation of solid
matter suspended in a liquid. - .....ANSWER ...✔✔
Sedimentation
Minimum slope or grade (in %) permitted with 100mm
(4'') pipes. - .....ANSWER ...✔✔ 1%
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Lighter organic solid particles found in sewage,
cesspools and septic tanks, found floating on the liquid. -
.....ANSWER ...✔✔ Scum
Term defined as the organic particles that have settled
down in septic tanks, cesspools or sewage. - .....ANSWER
...✔✔ Sludge
Minimum WIDTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 900 mm
Minimum LENGTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 1500 mm
Minimum DEPTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 1200 mm
Leading cause of pipe clogs in waste and soil pipes. -
.....ANSWER ...✔✔ Hair
Definition of DWV - .....ANSWER ...✔✔ Drainage,
Waste and Vent
, 4|Page
Definition of ABS - .....ANSWER ...✔✔ Acrylonitrile
butadiene styrene
Cross sectional shape of the interior of Polybutene pipes
(PB). - .....ANSWER ...✔✔ Oval
Minimum size of cleanouts. (mm) - .....ANSWER ...✔✔
38 mm
Type of valve found in the service main, used as a
control of the water service and shut off valve when
service is disconnected. - .....ANSWER ...✔✔
Corporation Stop
Type of valve used to prevent backflow or reversal of
flow of water, usually found after the water meter. -
.....ANSWER ...✔✔ Check Valve
Fitting used to describe the connection of the service
pipe and water meter. Usually used as the demarcation
between the property of the water service and water
supply pipe system residential dwelling or building. -
.....ANSWER ...✔✔ Union Patente
RHODE ISLAND JOURNEYMAN/MASTER
PLUMBER EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
Type of pump that discharges waste in the sump pit and
transfers the waste to the house drain. (Max Fajardo) -
.....ANSWER ...✔✔ Sewage Ejector
Minimum dimension of a septic tank manhole. -
.....ANSWER ...✔✔ 503 mm
drain that discharges objectionable waste such as acids
and other chemicals from industrial equipment . -
.....ANSWER ...✔✔ Industrial drain
Minimum diameter of pipe of any water closet. -
.....ANSWER ...✔✔ 75 mm
,2|Page
Maximum number of water closets able to discharge into
a shared 75mm diameter horizontal soil branch -
.....ANSWER ...✔✔ 3
Type of sewer that discharges both storm water and
sewage from households, rendered obsolete due to the
health hazards it poses - .....ANSWER ...✔✔
Combination Sewer
Airtight receptacle used to expedite the decomposition
of elements contained in raw sewage, usually located
1.5 meters from the property line and 15.2 meters from
the water main or any potable water source. It is
comprised of two chambers that contain anaerobic
bacteria that break down wastes. - .....ANSWER
...✔✔ Septic Tank
Term defined as the settling down or separation of solid
matter suspended in a liquid. - .....ANSWER ...✔✔
Sedimentation
Minimum slope or grade (in %) permitted with 100mm
(4'') pipes. - .....ANSWER ...✔✔ 1%
,3|Page
Lighter organic solid particles found in sewage,
cesspools and septic tanks, found floating on the liquid. -
.....ANSWER ...✔✔ Scum
Term defined as the organic particles that have settled
down in septic tanks, cesspools or sewage. - .....ANSWER
...✔✔ Sludge
Minimum WIDTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 900 mm
Minimum LENGTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 1500 mm
Minimum DEPTH of a septic tank for residential
dwellings. (mm) - .....ANSWER ...✔✔ 1200 mm
Leading cause of pipe clogs in waste and soil pipes. -
.....ANSWER ...✔✔ Hair
Definition of DWV - .....ANSWER ...✔✔ Drainage,
Waste and Vent
, 4|Page
Definition of ABS - .....ANSWER ...✔✔ Acrylonitrile
butadiene styrene
Cross sectional shape of the interior of Polybutene pipes
(PB). - .....ANSWER ...✔✔ Oval
Minimum size of cleanouts. (mm) - .....ANSWER ...✔✔
38 mm
Type of valve found in the service main, used as a
control of the water service and shut off valve when
service is disconnected. - .....ANSWER ...✔✔
Corporation Stop
Type of valve used to prevent backflow or reversal of
flow of water, usually found after the water meter. -
.....ANSWER ...✔✔ Check Valve
Fitting used to describe the connection of the service
pipe and water meter. Usually used as the demarcation
between the property of the water service and water
supply pipe system residential dwelling or building. -
.....ANSWER ...✔✔ Union Patente
