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Master Plumber Exam 1 Correct Answers Latest Version 2024/2025
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Master Plumber Exam 1 Correct Answers Latest Version 2024/2025
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Master Plumber Exam 1 Correct AnswersLatest Version 2024/2025
Sewage Ejector Answer: Type of pump that discharges waste in the sump pit and transfers the
waste to the house drain. (Max Fajardo)
503 mm Answer: Minimum dimension of a septic tank manhole.
Industrial drain Answer: drain that discharges objectionable waste such as acids and other
chemicals from industrial equipment .
75 mm Answer: Minimum diameter of pipe of any water closet.
3 Answer: Maximum number of water closets able to discharge into a shared 75mm diameter
horizontal soil branch
Combination Sewer Answer: Type of sewer that discharges both storm water and sewage from
households, rendered obsolete due to the health hazards it poses
Septic Tank Answer: 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.
Sedimentation Answer: Term defined as the settling down or separation of solid matter suspended
in a liquid.
1% Answer: Minimum slope or grade (in %) permitted with 100mm (4'') pipes.
,Scum Answer: Lighter organic solid particles found in sewage, cesspools and septic tanks, found
floating on the liquid.
Sludge Answer: Term defined as the organic particles that have settled down in septic tanks,
cesspools or sewage.
900 mm Answer: Minimum WIDTH of a septic tank for residential dwellings. (mm)
1500 mm Answer: Minimum LENGTH of a septic tank for residential dwellings. (mm)
1200 mm Answer: Minimum DEPTH of a septic tank for residential dwellings. (mm)
Hair Answer: Leading cause of pipe clogs in waste and soil pipes.
Drainage, Waste and Vent Answer: Definition of DWV
Acrylonitrile butadiene styrene Answer: Definition of ABS
Oval Answer: Cross sectional shape of the interior of Polybutene pipes (PB).
38 mm Answer: Minimum size of cleanouts. (mm)
Corporation Stop Answer: 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 Answer: Type of valve used to prevent backflow or reversal of flow of water, usually
found after the water meter.
Union Patente Answer: 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 Answer: 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 Answer: Type of piping system that is characterized by threading and connecting
cast iron pipes in the building.
Teflon Tape Answer: Material used to fuse joints or connections of GI pipes.
Caulking Answer: Process of joining the joints and connections of cast iron pipes.
Motor Oil Answer: Type of oil used when threading GI pipes.
Centrifugal Pump Answer: Type of pump used for high-rise or mid-rise buildings, when booster or
piston pumps are unavailable or inadequate.
Piston Pump Answer: Type of pump used for residential or low-rise buildings, and comes in single
action, double action or twin.
Drum Trap Answer: Type of trap that is installed only in bathtubs.
, Flushometer Valve Answer: 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 Answer: Number of teeth per inch in a hacksaw blade used to cut GI pipes.
Looped Vent Answer: Type of vent used in an island counter type kitchen sink.
Trap Seal Answer: Maximum vertical depth of liquid that a trap can contain.
Sump Pit Answer: Type of detention pit usually found in basements, used to gather and discharge
waste water, sometimes with the help of a pump.
Standpipe Answer: Vertical pipe that is used for the storage of water, usually contains pressure and
is used for fire suppression.
Return Bend Answer: Type of pipe with a 180 degree bend.
2 Answer: Water Supply Fixture unit of a bath tub.
2 Answer: Water Supply Fixture unit of a shower
38 mm Answer: Diameter of pipe used for bath tub drum traps. (Max Fajardo, p. 172) (mm)
38 mm Answer: Diameter of pipe used for wash basins / lavatories. (Max Fajardo, p. 172) (mm)
75 mm Answer: Diameter of pipe used for water closets. (Max Fajardo, p. 172) (mm)
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