MASTER PLUMBER ACTUAL TEST PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 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.
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 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.
