MASTER PLUMBER COMPREHENSIVE
EXAM QUESTIONS AND SOLUTIONS STUDY
GUIDE
●● ALLEY
Answer: ANY PUBLIC SPACE, PUBLIC PARK, OR
THOROUGHFARE LESS THAN 3 METERS BUT NOT LESS THAN
2 METERS IN WIDTH DEDICATED OR DEEDED FOR PUBLIC
USE
●● ALTER or ALTERATION
Answer: ANY CHANGE, ADDITION OR MODIFICATION IN
CONSTRUCTION OR OCCUPANCY
●● ACCESSIBLE
Answer: WHEN APPLIED TO A FIXTURE, CONNECTION,
APPLIANCE OR EQUIPMENT, SHALL 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
,Answer: A PHYSICAL SEPARATION, WHICH MAY BE A LOW
INLET INTO THE INDRECT WASTE RECEPTOR FROM THE
FIXTURE APPLIANCE OR DEVICE INDRECTLY CONNECTED.
●● AIR GAP, DRAINAGE
Answer: THE UNOBSTRUCTED VERTICAL DISTANCE THROUGH
THE FREE ATMOSHPHERE 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
Answer: AN UNOBSTRUCTED VERTICAL DISTANCE THROUGH
THE FREE ATMOSPHERE BETWEEN THE LOWEST OPENING
FROM ANY PIPE OR FAUCET CONVEYING POTABLE WATE TO
THE FLOOD-LEVEL RIM OF ANY TANK, VAT OR FIXTURE.
●● APPROVED
Answer: 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
,Answer: AN ORGANIZATION PRIMARILY ESTABLISHED FOR
PURPOSES OF TESTING TO APPROVED STANDARDS AND
APPROVED BY THE ADMINISTRATIVE AUTHORITY.
●● ADMINISTRATIVE AUTHORITY
Answer: 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
●● APPRENTICE PLUMBER
Answer: AN ENTRY LEVEL PLUMBER, LEARNING, LEARNING
THE TRADE. MAY WORK WITH A JOURNEYMAN, UNDER THE
SUPERVISION OF MASTER PLUMBER
●● AREA DRAIN
Answer: A RECEPTOR DESIGNED TO COLLECT SURFACE OF
STORM WATER FROM AN OPEN AREA.
●● BACKVENT PIPE
Answer: 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. ALSO RE-VENT PIPE
●● BACKFLOW
Answer: 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
Answer: CONDITION OR ANY ARRANGEMENT WHEREBY
REVERSE FLOW CAN OCCUR
●● BACKPRESSURE BACKFLOW
Answer: 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
Answer: DEVICE OR MEANS TO PREVENT FLOW OF LIQUID
FROM RETURNING TO THE SOURCE OF SUPPLY. ALSO
CALLED VACUUM BREAKER.
●● BACK-SIPHONAGE
EXAM QUESTIONS AND SOLUTIONS STUDY
GUIDE
●● ALLEY
Answer: ANY PUBLIC SPACE, PUBLIC PARK, OR
THOROUGHFARE LESS THAN 3 METERS BUT NOT LESS THAN
2 METERS IN WIDTH DEDICATED OR DEEDED FOR PUBLIC
USE
●● ALTER or ALTERATION
Answer: ANY CHANGE, ADDITION OR MODIFICATION IN
CONSTRUCTION OR OCCUPANCY
●● ACCESSIBLE
Answer: WHEN APPLIED TO A FIXTURE, CONNECTION,
APPLIANCE OR EQUIPMENT, SHALL 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
,Answer: A PHYSICAL SEPARATION, WHICH MAY BE A LOW
INLET INTO THE INDRECT WASTE RECEPTOR FROM THE
FIXTURE APPLIANCE OR DEVICE INDRECTLY CONNECTED.
●● AIR GAP, DRAINAGE
Answer: THE UNOBSTRUCTED VERTICAL DISTANCE THROUGH
THE FREE ATMOSHPHERE 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
Answer: AN UNOBSTRUCTED VERTICAL DISTANCE THROUGH
THE FREE ATMOSPHERE BETWEEN THE LOWEST OPENING
FROM ANY PIPE OR FAUCET CONVEYING POTABLE WATE TO
THE FLOOD-LEVEL RIM OF ANY TANK, VAT OR FIXTURE.
●● APPROVED
Answer: 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
,Answer: AN ORGANIZATION PRIMARILY ESTABLISHED FOR
PURPOSES OF TESTING TO APPROVED STANDARDS AND
APPROVED BY THE ADMINISTRATIVE AUTHORITY.
●● ADMINISTRATIVE AUTHORITY
Answer: 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
●● APPRENTICE PLUMBER
Answer: AN ENTRY LEVEL PLUMBER, LEARNING, LEARNING
THE TRADE. MAY WORK WITH A JOURNEYMAN, UNDER THE
SUPERVISION OF MASTER PLUMBER
●● AREA DRAIN
Answer: A RECEPTOR DESIGNED TO COLLECT SURFACE OF
STORM WATER FROM AN OPEN AREA.
●● BACKVENT PIPE
Answer: 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. ALSO RE-VENT PIPE
●● BACKFLOW
Answer: 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
Answer: CONDITION OR ANY ARRANGEMENT WHEREBY
REVERSE FLOW CAN OCCUR
●● BACKPRESSURE BACKFLOW
Answer: 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
Answer: DEVICE OR MEANS TO PREVENT FLOW OF LIQUID
FROM RETURNING TO THE SOURCE OF SUPPLY. ALSO
CALLED VACUUM BREAKER.
●● BACK-SIPHONAGE
