MASTER PLUMBER COMPREHENSIVE EXAM UPDATED
QUESTIONS AND SOLUTIONS RATED A+
✔✔2 - ✔✔air gap being maintained from effective opening to flood rim is ___ x outlet
diameter
✔✔battery - ✔✔two or more similar adjacent with discharge into a common horizontal or
soil branch
✔✔4 - ✔✔required faucets/bibbs for 1 plumbing unit
✔✔3 - ✔✔required floor drains for 1 plumbing unit
✔✔.6 - ✔✔distance of the center of one urinal to another
✔✔.3 or .5? - ✔✔distance of center of one urinal to a wall
✔✔flush - ✔✔class of lavatory where the rim of the fixture aligns with the top portion of
the counter
✔✔self rimming - ✔✔class of lavatory where the rim of the fixture is above the top
portion of the counter
✔✔under counter - ✔✔class of lavatory where the rim of the fixture aligns with the
bottom portion of the counter
✔✔.75 - ✔✔center to center distance of a bidet/water closet to another similar fixture
✔✔.375 - ✔✔center distance of a bidet to a wall
✔✔3" - ✔✔minimum trap seal of a floor drain
✔✔2" - ✔✔minimum outlet size of a floor drain
✔✔2-4% - ✔✔shower receptor slope range
✔✔.6 - ✔✔min. interior area of shower
✔✔762 - ✔✔minimum diameter circle of a shower compartment
✔✔1.78 - ✔✔min clear height of a shower compartment
✔✔4.9 - ✔✔spacing for gang shower drains
,✔✔3m - ✔✔minimum height of water test
✔✔3m+previous 3m - ✔✔minimum height of water test for more than 1 section
✔✔15m - ✔✔minimum time for water test before inspection
✔✔5 PSI 34.5 kpa - ✔✔minimum air pressure of air test
✔✔once a year - ✔✔how often does a septic tank need to be inpsected
✔✔3" - ✔✔a septic tank needs to be cleaned if the bottom of scum mat is within ____
from the bottom outlet
✔✔50% - ✔✔a septic tank needs to cleaned if scum has reduced the liquid capacity by
____
✔✔septic tanks - ✔✔______ shall not be washed after being cleansed
✔✔1.2m - ✔✔minimum depth of septic tank
✔✔1:2 - ✔✔proportion of leaching chamber to digesting chamber
✔✔20cm - ✔✔minimum vertical distance from liquid level to inside top of the septic tank
✔✔.508 - ✔✔minimum size of manhole for septic tank
✔✔25 - ✔✔septic tanks shall be placed ______ m from spring, well cistern or other
source of drinking water supply
✔✔1.5 - ✔✔septic tanks shall be placed ______ m from water service line
✔✔3 - ✔✔septic tanks shall be placed ______ m from water main
✔✔innocuous - ✔✔industrial waste must first be rendered ____
✔✔2 - ✔✔all (practical) drainage slopes should be aligned at a uniform slope of ____%
✔✔threaded - ✔✔cast iron soil pipes shall not be ____
✔✔102 - ✔✔an enlargement of a closet bend from 76mm to ____ shall not be
considered as an obstruction
, ✔✔embedded metal pipe sleeves - ✔✔pipes passing through or under walls shall be
protected from breakage via ___
✔✔bitumen - ✔✔void between pipes through concrete floors or walls in the ground shall
be sealed with ___
✔✔45 - ✔✔degree from which a pipe should be clear from a building element
✔✔.6 - ✔✔no building sewer shall be installed under or within ____m of any building or
structure
✔✔.3 - ✔✔no building sewer shall be placed below ____m finish ground surface
✔✔102 - ✔✔minimum diameter of a pipe to allow a 1% slope
✔✔wye and 1/8 bend - ✔✔connection of a horizontal drainage pipe to a vertical stack is
composed of a sanitary tee or ______
✔✔2 - ✔✔how many pipe sizes larger should the barrel of a double sanitary tee be as
opposed to its branches
✔✔RA 1738 - ✔✔also known as the plumbing law of the philippines
✔✔6 - ✔✔sets reuired for requirements of a permit
✔✔1 obo 2 owner - ✔✔retention of plans
✔✔1 year - ✔✔validity of permit if not commenced
✔✔120 days - ✔✔validity of permit if suspended or abandoned
✔✔Virgilio Simbulan - ✔✔chairman of Master plumbers
✔✔1935 - ✔✔year NAMPAP was formally organized
✔✔>= 1.4 cu.m. - ✔✔unconfined space aggregate area
✔✔backflow prevention device - ✔✔required for pipes carrying chemicals
✔✔3 - ✔✔minimum airgap for water distribution if affected by sidewalls is ___x the
diameter of outlet
✔✔305 - ✔✔clearance of backflow prevention devices from the ground
QUESTIONS AND SOLUTIONS RATED A+
✔✔2 - ✔✔air gap being maintained from effective opening to flood rim is ___ x outlet
diameter
✔✔battery - ✔✔two or more similar adjacent with discharge into a common horizontal or
soil branch
✔✔4 - ✔✔required faucets/bibbs for 1 plumbing unit
✔✔3 - ✔✔required floor drains for 1 plumbing unit
✔✔.6 - ✔✔distance of the center of one urinal to another
✔✔.3 or .5? - ✔✔distance of center of one urinal to a wall
✔✔flush - ✔✔class of lavatory where the rim of the fixture aligns with the top portion of
the counter
✔✔self rimming - ✔✔class of lavatory where the rim of the fixture is above the top
portion of the counter
✔✔under counter - ✔✔class of lavatory where the rim of the fixture aligns with the
bottom portion of the counter
✔✔.75 - ✔✔center to center distance of a bidet/water closet to another similar fixture
✔✔.375 - ✔✔center distance of a bidet to a wall
✔✔3" - ✔✔minimum trap seal of a floor drain
✔✔2" - ✔✔minimum outlet size of a floor drain
✔✔2-4% - ✔✔shower receptor slope range
✔✔.6 - ✔✔min. interior area of shower
✔✔762 - ✔✔minimum diameter circle of a shower compartment
✔✔1.78 - ✔✔min clear height of a shower compartment
✔✔4.9 - ✔✔spacing for gang shower drains
,✔✔3m - ✔✔minimum height of water test
✔✔3m+previous 3m - ✔✔minimum height of water test for more than 1 section
✔✔15m - ✔✔minimum time for water test before inspection
✔✔5 PSI 34.5 kpa - ✔✔minimum air pressure of air test
✔✔once a year - ✔✔how often does a septic tank need to be inpsected
✔✔3" - ✔✔a septic tank needs to be cleaned if the bottom of scum mat is within ____
from the bottom outlet
✔✔50% - ✔✔a septic tank needs to cleaned if scum has reduced the liquid capacity by
____
✔✔septic tanks - ✔✔______ shall not be washed after being cleansed
✔✔1.2m - ✔✔minimum depth of septic tank
✔✔1:2 - ✔✔proportion of leaching chamber to digesting chamber
✔✔20cm - ✔✔minimum vertical distance from liquid level to inside top of the septic tank
✔✔.508 - ✔✔minimum size of manhole for septic tank
✔✔25 - ✔✔septic tanks shall be placed ______ m from spring, well cistern or other
source of drinking water supply
✔✔1.5 - ✔✔septic tanks shall be placed ______ m from water service line
✔✔3 - ✔✔septic tanks shall be placed ______ m from water main
✔✔innocuous - ✔✔industrial waste must first be rendered ____
✔✔2 - ✔✔all (practical) drainage slopes should be aligned at a uniform slope of ____%
✔✔threaded - ✔✔cast iron soil pipes shall not be ____
✔✔102 - ✔✔an enlargement of a closet bend from 76mm to ____ shall not be
considered as an obstruction
, ✔✔embedded metal pipe sleeves - ✔✔pipes passing through or under walls shall be
protected from breakage via ___
✔✔bitumen - ✔✔void between pipes through concrete floors or walls in the ground shall
be sealed with ___
✔✔45 - ✔✔degree from which a pipe should be clear from a building element
✔✔.6 - ✔✔no building sewer shall be installed under or within ____m of any building or
structure
✔✔.3 - ✔✔no building sewer shall be placed below ____m finish ground surface
✔✔102 - ✔✔minimum diameter of a pipe to allow a 1% slope
✔✔wye and 1/8 bend - ✔✔connection of a horizontal drainage pipe to a vertical stack is
composed of a sanitary tee or ______
✔✔2 - ✔✔how many pipe sizes larger should the barrel of a double sanitary tee be as
opposed to its branches
✔✔RA 1738 - ✔✔also known as the plumbing law of the philippines
✔✔6 - ✔✔sets reuired for requirements of a permit
✔✔1 obo 2 owner - ✔✔retention of plans
✔✔1 year - ✔✔validity of permit if not commenced
✔✔120 days - ✔✔validity of permit if suspended or abandoned
✔✔Virgilio Simbulan - ✔✔chairman of Master plumbers
✔✔1935 - ✔✔year NAMPAP was formally organized
✔✔>= 1.4 cu.m. - ✔✔unconfined space aggregate area
✔✔backflow prevention device - ✔✔required for pipes carrying chemicals
✔✔3 - ✔✔minimum airgap for water distribution if affected by sidewalls is ___x the
diameter of outlet
✔✔305 - ✔✔clearance of backflow prevention devices from the ground
