MASTER PLUMBER EXAM: DEFINITION
OF TERMS ANSWERED CORRECTLY
2025!!!
ABS CORRECT ANSWERS Acrylonitrile-Butadiene·Styrene
ALLEY CORRECT ANSWERS any public space. public park or thoroughfare less than
three (3) meters but not less than two (2) meters in width dedicated or deeded for public
use.
ALTER or ALTERATION CORRECT ANSWERS any change, addition or modification
ACCESSIBLE CORRECT ANSWERS when applied to a fixture, connection, appliance
or equipment, shalt mean having access thereto, but which may require prior removal of
an access panel, door or similar obstruction. "Readily accessible" shall mean direct
access without the necessity of removing any panel, door or similar obstruction.
AIRBREAK CORRECT ANSWERS a physical separation. which may be a low inlet into
the indirect waste receptor from the fixture, appliance or device indirectly connected.
AIR GAP, DRAINAGE CORRECT ANSWERS the unobstructed vertical distance
through the free atmosphere between the lowest opening from any pipe, plumbing
fixture, appliance or appurtenance conveying waste to the flood level rim of the
receptor.
AIR GAP, WATER DISTRIBUTION CORRECT ANSWERS an unobstructed vertical
distance through the free atmosphere between the lowest opening from any pipe or
faucet conveying potable water to the flood-level rim of any tank, vat or fixture.
APPROVED CORRECT ANSWERS accepted or acceptable under an applicable
specifications or standard stated or cited in this Code., or accepted as suitable for any
proposed use under procedures and powers of the Administrative Authority.
APPROVED TESTING AGENCY CORRECT ANSWERS an organization primarily
established for purposes of testing to approve standards and approved by the
Administrative Authority.
AUTHORITY, ADMINISTRATIVE CORRECT ANSWERS The Administrative Authority
including the Building Official, the Commission, the Board and such other department or
agency established and authorized to administer and enforce the provisions of Republic
Act 13 78
,BACKFLOW CORRECT ANSWERS the flow of water or other liquids, mixtures or
substances into the distributing pipes of a potable supply of water from any source other
than from its intended source.
BACKFLOW CONNECTION CORRECT ANSWERS condition or any arrangement
whereby reverse flow can occur.
BACKPRESSURE BACKFLOW CORRECT ANSWERS occurs due to an increased
reverse pressure above the supply pressure. This may be due to pumps, boilers, gravity
or other sources of pressure
BACKFLOW PREVENTER CORRECT ANSWERS device or means to prevent flow of
liquid from returning to the source of supply. Also called vacuum breaker
BACK-SIPHONAGE CORRECT ANSWERS the flowing back of used, contaminated or ·
polluted water from a plumbing fixture or vessel into a water supply pipe due to a
negative pressure in such pipe. See backflow.
BACKWATER VALVE CORRECT ANSWERS a device installed in a drainage system to
prevent reverse flow.
BACK VENT PIPE CORRECT ANSWERS the part of a vent line, which connects
directly with an individual trap underneath or behind the fixture and extends to the
branch or main vent pipe at any point higher than the fixture or fixture traps it serves.
This is sometimes called an individual vent.
BALL COCK CORRECT ANSWERS a valve opened and closed by the fall and rise,
respective! y, of an attached ball floating on the surface of the liquid
BALL JOINT CORRECT ANSWERS a type of pipe connection in which a ball-shaped
end is held in a cup like shell and allows movements in every direction.
BATTERY OF FIXTURES CORRECT ANSWERS any of two or more similar adjacent
fixtures which discharge into a common horizontal soil or waste branch.
BELL OR HUB CORRECT ANSWERS that portion of a pipe which, for a short distance,
is sufficiently enlarged to receive the end of another pipe of the same diameter for the
purpose of making rt caulked or push-on joint
BENDING PIN (or IRON) CORRECT ANSWERS a tool for straightening or bending
lead pipe synonymous with faucet, cock, tap, plug, etc. The word "faucet" is preferred
BIDET CORRECT ANSWERS A plumbing fixture used for washing the middle private
part of the body, especially the genitals. Also called a "sitz" bath.
BLANK FLANGE CORRECT ANSWERS A pipe flange that is not drilled for bolt holes
, BLIND FLANGE CORRECT ANSWERS a flange that closes the end of a pipe. There is
no opening for the passage of liquid or gas.
BLOW·OFF CORRECT ANSWERS a controlled outlet of a pipeline to discharge liquid
or detritus.
BOARO CORRECT ANSWERS the Licensure Board for Master Plumbers
BOILER BLOW-OFF CORRECT ANSWERS a valved outlet of a boiler that permits
discharge of accumulated sediment.
BRANCH CORRECT ANSWERS any part of the piping system other than a main, riser
or stack .
BRANCH INTERVAL CORRECT ANSWERS a length of soil or waste stack
corresponding in general to a story height, but in no case less than 2.43 meters within
which the horizontal branches from one floor or story of a building are connected to the
stack
BRANCH VENT CORRECT ANSWERS a horizontal vent connecting one or more
individual vertical back vents with the vent stack or stack vent.
BRAZED JOINT CORRECT ANSWERS any joint obtained by joining of metal parts with
alloys which melt at temperatures higher than 449 degrees centigrade, but lower than
the melting temperature of the parts to be joined
BUILDING DRAIN CORRECT ANSWERS that part of the lowest horizontal piping of a
drainage system which receives the discharge from soil, waste and other drainage
pipes inside the walls of the building and conveys it to the building sewer beginning 0.6
meter outside the building wall.
BUILDING SEWER CORRECT ANSWERS that part of the horizontal piping of a
drainage system which starts from the end of the building drain and which receives the
discharge of the building drain and conveys it to a public sewer, private sewer,
individual sewage disposal system or other point of disposal.
BUILDING SUBDRAIN CORRECT ANSWERS that portion of an underground system,
which cannot drain by gravity into the building sewer.
BUILDING SUPPLY CORRECT ANSWERS the pipe carrying potable water from the
water meter or other source of water supply to a building or other point of use or
distribution on the lot. Building supply shall also mean water service connection.
OF TERMS ANSWERED CORRECTLY
2025!!!
ABS CORRECT ANSWERS Acrylonitrile-Butadiene·Styrene
ALLEY CORRECT ANSWERS any public space. public park or thoroughfare less than
three (3) meters but not less than two (2) meters in width dedicated or deeded for public
use.
ALTER or ALTERATION CORRECT ANSWERS any change, addition or modification
ACCESSIBLE CORRECT ANSWERS when applied to a fixture, connection, appliance
or equipment, shalt mean having access thereto, but which may require prior removal of
an access panel, door or similar obstruction. "Readily accessible" shall mean direct
access without the necessity of removing any panel, door or similar obstruction.
AIRBREAK CORRECT ANSWERS a physical separation. which may be a low inlet into
the indirect waste receptor from the fixture, appliance or device indirectly connected.
AIR GAP, DRAINAGE CORRECT ANSWERS the unobstructed vertical distance
through the free atmosphere between the lowest opening from any pipe, plumbing
fixture, appliance or appurtenance conveying waste to the flood level rim of the
receptor.
AIR GAP, WATER DISTRIBUTION CORRECT ANSWERS an unobstructed vertical
distance through the free atmosphere between the lowest opening from any pipe or
faucet conveying potable water to the flood-level rim of any tank, vat or fixture.
APPROVED CORRECT ANSWERS accepted or acceptable under an applicable
specifications or standard stated or cited in this Code., or accepted as suitable for any
proposed use under procedures and powers of the Administrative Authority.
APPROVED TESTING AGENCY CORRECT ANSWERS an organization primarily
established for purposes of testing to approve standards and approved by the
Administrative Authority.
AUTHORITY, ADMINISTRATIVE CORRECT ANSWERS The Administrative Authority
including the Building Official, the Commission, the Board and such other department or
agency established and authorized to administer and enforce the provisions of Republic
Act 13 78
,BACKFLOW CORRECT ANSWERS the flow of water or other liquids, mixtures or
substances into the distributing pipes of a potable supply of water from any source other
than from its intended source.
BACKFLOW CONNECTION CORRECT ANSWERS condition or any arrangement
whereby reverse flow can occur.
BACKPRESSURE BACKFLOW CORRECT ANSWERS occurs due to an increased
reverse pressure above the supply pressure. This may be due to pumps, boilers, gravity
or other sources of pressure
BACKFLOW PREVENTER CORRECT ANSWERS device or means to prevent flow of
liquid from returning to the source of supply. Also called vacuum breaker
BACK-SIPHONAGE CORRECT ANSWERS the flowing back of used, contaminated or ·
polluted water from a plumbing fixture or vessel into a water supply pipe due to a
negative pressure in such pipe. See backflow.
BACKWATER VALVE CORRECT ANSWERS a device installed in a drainage system to
prevent reverse flow.
BACK VENT PIPE CORRECT ANSWERS the part of a vent line, which connects
directly with an individual trap underneath or behind the fixture and extends to the
branch or main vent pipe at any point higher than the fixture or fixture traps it serves.
This is sometimes called an individual vent.
BALL COCK CORRECT ANSWERS a valve opened and closed by the fall and rise,
respective! y, of an attached ball floating on the surface of the liquid
BALL JOINT CORRECT ANSWERS a type of pipe connection in which a ball-shaped
end is held in a cup like shell and allows movements in every direction.
BATTERY OF FIXTURES CORRECT ANSWERS any of two or more similar adjacent
fixtures which discharge into a common horizontal soil or waste branch.
BELL OR HUB CORRECT ANSWERS that portion of a pipe which, for a short distance,
is sufficiently enlarged to receive the end of another pipe of the same diameter for the
purpose of making rt caulked or push-on joint
BENDING PIN (or IRON) CORRECT ANSWERS a tool for straightening or bending
lead pipe synonymous with faucet, cock, tap, plug, etc. The word "faucet" is preferred
BIDET CORRECT ANSWERS A plumbing fixture used for washing the middle private
part of the body, especially the genitals. Also called a "sitz" bath.
BLANK FLANGE CORRECT ANSWERS A pipe flange that is not drilled for bolt holes
, BLIND FLANGE CORRECT ANSWERS a flange that closes the end of a pipe. There is
no opening for the passage of liquid or gas.
BLOW·OFF CORRECT ANSWERS a controlled outlet of a pipeline to discharge liquid
or detritus.
BOARO CORRECT ANSWERS the Licensure Board for Master Plumbers
BOILER BLOW-OFF CORRECT ANSWERS a valved outlet of a boiler that permits
discharge of accumulated sediment.
BRANCH CORRECT ANSWERS any part of the piping system other than a main, riser
or stack .
BRANCH INTERVAL CORRECT ANSWERS a length of soil or waste stack
corresponding in general to a story height, but in no case less than 2.43 meters within
which the horizontal branches from one floor or story of a building are connected to the
stack
BRANCH VENT CORRECT ANSWERS a horizontal vent connecting one or more
individual vertical back vents with the vent stack or stack vent.
BRAZED JOINT CORRECT ANSWERS any joint obtained by joining of metal parts with
alloys which melt at temperatures higher than 449 degrees centigrade, but lower than
the melting temperature of the parts to be joined
BUILDING DRAIN CORRECT ANSWERS that part of the lowest horizontal piping of a
drainage system which receives the discharge from soil, waste and other drainage
pipes inside the walls of the building and conveys it to the building sewer beginning 0.6
meter outside the building wall.
BUILDING SEWER CORRECT ANSWERS that part of the horizontal piping of a
drainage system which starts from the end of the building drain and which receives the
discharge of the building drain and conveys it to a public sewer, private sewer,
individual sewage disposal system or other point of disposal.
BUILDING SUBDRAIN CORRECT ANSWERS that portion of an underground system,
which cannot drain by gravity into the building sewer.
BUILDING SUPPLY CORRECT ANSWERS the pipe carrying potable water from the
water meter or other source of water supply to a building or other point of use or
distribution on the lot. Building supply shall also mean water service connection.
