MASTER PLUMBER EXAM QUESTIONS
AND ANSWERS 2026 VERIFIED.
Sewage Ejector - ANS Type of pump that discharges waste in the sump pit and transfers the
waste to the house drain. (Max Fajardo)
503 mm - ANS Minimum dimension of a septic tank manhole.
Industrial drain - ANS drain that discharges objectionable waste such as acids and other
chemicals from industrial equipment .
75 mm - ANS Minimum diameter of pipe of any water closet.
3 - ANS Maximum number of water closets able to discharge into a shared 75mm diameter
horizontal soil branch
Combination Sewer - ANS Type of sewer that discharges both storm water and sewage from
households, rendered obsolete due to the health hazards it poses
Septic Tank - ANS 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.
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 63
,Sedimentation - ANS Term defined as the settling down or separation of solid matter
suspended in a liquid.
1% - ANS Minimum slope or grade (in %) permitted with 100mm (4'') pipes.
Scum - ANS Lighter organic solid particles found in sewage, cesspools and septic tanks, found
floating on the liquid.
Sludge - ANS Term defined as the organic particles that have settled down in septic tanks,
cesspools or sewage.
900 mm - ANS Minimum WIDTH of a septic tank for residential dwellings. (mm)
1500 mm - ANS Minimum LENGTH of a septic tank for residential dwellings. (mm)
1200 mm - ANS Minimum DEPTH of a septic tank for residential dwellings. (mm)
Hair - ANS Leading cause of pipe clogs in waste and soil pipes.
Drainage, Waste and Vent - ANS Definition of DWV
Acrylonitrile butadiene styrene - ANS Definition of ABS
Oval - ANS Cross sectional shape of the interior of Polybutene pipes (PB).
38 mm - ANS Minimum size of cleanouts. (mm)
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 63
,Corporation Stop - ANS Type of valve found in the service main, used as a control of the
water service and shut off valve when service is disconnected.
Check Valve - ANS Type of valve used to prevent backflow or reversal of flow of water, usually
found after the water meter.
Union Patente - ANS 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.
Booster Pump / Pneumatic Pump - ANS Type of pump used to distribute water within a
building or residence, when an upfeed system cannot provide adequate pressure to supply
fixtures with potable water.
Durham System - ANS Type of piping system that is characterized by threading and
connecting cast iron pipes in the building.
Teflon Tape - ANS Material used to fuse joints or connections of GI pipes.
Caulking - ANS Process of joining the joints and connections of cast iron pipes.
Motor Oil - ANS Type of oil used when threading GI pipes.
Centrifugal Pump - ANS Type of pump used for high-rise or mid-rise buildings, when booster
or piston pumps are unavailable or inadequate.
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 63
, Piston Pump - ANS Type of pump used for residential or low-rise buildings, and comes in
single action, double action or twin.
Drum Trap - ANS Type of trap that is installed only in bathtubs.
Flushometer Valve - ANS Type of flushing valve used in commercial water closets, usually
installed with a pressure tank that expels air pressure and a set amount of water when flushing.
14 - ANS Number of teeth per inch in a hacksaw blade used to cut GI pipes.
Looped Vent - ANS Type of vent used in an island counter type kitchen sink.
Trap Seal - ANS Maximum vertical depth of liquid that a trap can contain.
Sump Pit - ANS Type of detention pit usually found in basements, used to gather and
discharge waste water, sometimes with the help of a pump.
Standpipe - ANS Vertical pipe that is used for the storage of water, usually contains pressure
and is used for fire suppression.
Return Bend - ANS Type of pipe with a 180 degree bend.
2 - ANS Water Supply Fixture unit of a bath tub.
2 - ANS Water Supply Fixture unit of a shower
@COPYRIGHT ALL RIGHTS RESERVED PAGE 4 OF 63
AND ANSWERS 2026 VERIFIED.
Sewage Ejector - ANS Type of pump that discharges waste in the sump pit and transfers the
waste to the house drain. (Max Fajardo)
503 mm - ANS Minimum dimension of a septic tank manhole.
Industrial drain - ANS drain that discharges objectionable waste such as acids and other
chemicals from industrial equipment .
75 mm - ANS Minimum diameter of pipe of any water closet.
3 - ANS Maximum number of water closets able to discharge into a shared 75mm diameter
horizontal soil branch
Combination Sewer - ANS Type of sewer that discharges both storm water and sewage from
households, rendered obsolete due to the health hazards it poses
Septic Tank - ANS 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.
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 63
,Sedimentation - ANS Term defined as the settling down or separation of solid matter
suspended in a liquid.
1% - ANS Minimum slope or grade (in %) permitted with 100mm (4'') pipes.
Scum - ANS Lighter organic solid particles found in sewage, cesspools and septic tanks, found
floating on the liquid.
Sludge - ANS Term defined as the organic particles that have settled down in septic tanks,
cesspools or sewage.
900 mm - ANS Minimum WIDTH of a septic tank for residential dwellings. (mm)
1500 mm - ANS Minimum LENGTH of a septic tank for residential dwellings. (mm)
1200 mm - ANS Minimum DEPTH of a septic tank for residential dwellings. (mm)
Hair - ANS Leading cause of pipe clogs in waste and soil pipes.
Drainage, Waste and Vent - ANS Definition of DWV
Acrylonitrile butadiene styrene - ANS Definition of ABS
Oval - ANS Cross sectional shape of the interior of Polybutene pipes (PB).
38 mm - ANS Minimum size of cleanouts. (mm)
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 63
,Corporation Stop - ANS Type of valve found in the service main, used as a control of the
water service and shut off valve when service is disconnected.
Check Valve - ANS Type of valve used to prevent backflow or reversal of flow of water, usually
found after the water meter.
Union Patente - ANS 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.
Booster Pump / Pneumatic Pump - ANS Type of pump used to distribute water within a
building or residence, when an upfeed system cannot provide adequate pressure to supply
fixtures with potable water.
Durham System - ANS Type of piping system that is characterized by threading and
connecting cast iron pipes in the building.
Teflon Tape - ANS Material used to fuse joints or connections of GI pipes.
Caulking - ANS Process of joining the joints and connections of cast iron pipes.
Motor Oil - ANS Type of oil used when threading GI pipes.
Centrifugal Pump - ANS Type of pump used for high-rise or mid-rise buildings, when booster
or piston pumps are unavailable or inadequate.
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 63
, Piston Pump - ANS Type of pump used for residential or low-rise buildings, and comes in
single action, double action or twin.
Drum Trap - ANS Type of trap that is installed only in bathtubs.
Flushometer Valve - ANS Type of flushing valve used in commercial water closets, usually
installed with a pressure tank that expels air pressure and a set amount of water when flushing.
14 - ANS Number of teeth per inch in a hacksaw blade used to cut GI pipes.
Looped Vent - ANS Type of vent used in an island counter type kitchen sink.
Trap Seal - ANS Maximum vertical depth of liquid that a trap can contain.
Sump Pit - ANS Type of detention pit usually found in basements, used to gather and
discharge waste water, sometimes with the help of a pump.
Standpipe - ANS Vertical pipe that is used for the storage of water, usually contains pressure
and is used for fire suppression.
Return Bend - ANS Type of pipe with a 180 degree bend.
2 - ANS Water Supply Fixture unit of a bath tub.
2 - ANS Water Supply Fixture unit of a shower
@COPYRIGHT ALL RIGHTS RESERVED PAGE 4 OF 63
