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