Massachusetts Master Plumber Exam
Review of 400 Latest Questions and Correct
Answers 2026-2027/ MASS Master Plumber
License Exam/ MA Master Plumber Test
A licensed Massachusetts Master plumber submitting an application to become a
corporation must be
An officer of the corporation
A Master plumber lets his Journeyman license expire, he ____________
May file permits for his business and work with the tools
How long must a licensee keep their continuing education certificates?
3 renewal cycles
A company with (1) Master and (2) Journeyman, how many apprentices can be
employed?
3
How long does an apprentice need to retain their W-2 forms after passing the
journeyman exam?
7 years
What must a Journeyman or master include on all advertising of their business?
License Number
Who has the authority to revoke a LP Installer's license?
State Board of Examiners of Plumbers and Gas Fitters
An Apprentice Plumber is paid $565 a weeks work for 48 weeks over the year. He
is taxed at a rate of 31%. What is his net pay for the year
$18,712.80
1
,How many hours per license cycle of continuing education does a plumbing & gas
inspector need?
24
How many days does a licensee have to respond to a
letter from the Board?
10
What type of plumbing business is not required to get a business license through
the Plumbing Board?
Sole Proprietorship
in trenches where PVC is installed and a firm foundation cannot be established,
piping shall be properly __________
suspended from concrete above
all water, waste and vent piping other than cast/ductile iron, or any steel located
within _________ exposed framing shall be protected by steel shielding plates
1"
all steel shielding plates that protect water, waste and vent piping other than
cast/ductile iron shall be a thickness of not less than _____
18 gauge
steel shielding plates shall extend a minimum of ________ beyond the piping
2"
protection of PVC against thermal expansion shall be provided using ________
expansion joints
PVC or ABS piping which penetrate concrete floors, slabs or walls shall be
provided with sleeves, maintaining an annular space of _________ between pipe
and sleeve
1"
where new or existing building or structure is designed for use on a temporary or
emergency basis tear does not meet code requirements, no relief shall be granted
unless a ___________ has been filed
2
,plumbing permit application
the inspector shall authorize temporary or emergency uses for a building for no
more than _______
60 days
when using CPVC for hot and cold water distribution that is located in an approved
dwelling, the building cannot be more than _______ stories
6 new code, 3 old code
when using CPVC in a residential setting, this material cannot be within
__________ of any connection to a hot water tank
2'
where can CPVC be used in a commercial building
dedicated only for drinking fountains from water meter
PVC may be installed exclusively in commercial buildings in areas that incorporate
patron areas for the purpose of serving ________________ where this liquid waste
may drain indirectly into a floor sink or floor drain
all carbonated type beverages
sumps and tanks for sewage removed by mechanical or ejector methods made from
concrete it shall be at least _____ thick
3"
sumps and tanks for sewage removed by mechanical or ejector methods made from
cast iron shall be ________ thick
1/4"
steel sewage ejector tanks tear are installed above ground must be a minimum of
______ inches thick
1/8"
pex tubing may be used in any building as long as it is exclusively for __________
dedicated cold water piping to drinking water stations
3
, all products, systems and equipment used in the construction, installation,
alteration, repair, replacement or removal of any plumbing or drainage system or
part thereof, shall meet the requirements acceptable to __________
the board
all pipe, valves and fittings used in potable water system anticipated to be used for
human consumption shall comply with _________________
Federal safe water drinking act
notwithstanding the provisions of this code, all applicable products must meet the
energy efficiency standards outlined in M.G.L to the extent these requirements are
managed by law, no ______________ or other relief can be granted by the board to
allow use of a non-compliant product
variance
pex tubing and fittings may be used in commercial buildings for the purpose of
conveying reverse osmosis or other similar processes that produce purified water
from the ________ to one or more points of use for drinking water
point of treatment
cpvc pipe and/or pex tubing and fittings shall not be used for steam flushing of
water purification systems. Only _______ and fittings shall be used for this
purpose
316 stainless steel tube
what material is not allowed for installation underground for water piping
polypropylene
when using PVC for approved mixed use, it shall be connected to the main or
branch drain serving other fixtures to provide a/an ___________
point of waste dilution
the use of any non-ferrous pipe and fittings rated at a maximum service
temperature of _________ on the outlet of a relief valve with a discharge not
exceeding 105,000 BTU per hour shall be allowed
200 degrees
4
Review of 400 Latest Questions and Correct
Answers 2026-2027/ MASS Master Plumber
License Exam/ MA Master Plumber Test
A licensed Massachusetts Master plumber submitting an application to become a
corporation must be
An officer of the corporation
A Master plumber lets his Journeyman license expire, he ____________
May file permits for his business and work with the tools
How long must a licensee keep their continuing education certificates?
3 renewal cycles
A company with (1) Master and (2) Journeyman, how many apprentices can be
employed?
3
How long does an apprentice need to retain their W-2 forms after passing the
journeyman exam?
7 years
What must a Journeyman or master include on all advertising of their business?
License Number
Who has the authority to revoke a LP Installer's license?
State Board of Examiners of Plumbers and Gas Fitters
An Apprentice Plumber is paid $565 a weeks work for 48 weeks over the year. He
is taxed at a rate of 31%. What is his net pay for the year
$18,712.80
1
,How many hours per license cycle of continuing education does a plumbing & gas
inspector need?
24
How many days does a licensee have to respond to a
letter from the Board?
10
What type of plumbing business is not required to get a business license through
the Plumbing Board?
Sole Proprietorship
in trenches where PVC is installed and a firm foundation cannot be established,
piping shall be properly __________
suspended from concrete above
all water, waste and vent piping other than cast/ductile iron, or any steel located
within _________ exposed framing shall be protected by steel shielding plates
1"
all steel shielding plates that protect water, waste and vent piping other than
cast/ductile iron shall be a thickness of not less than _____
18 gauge
steel shielding plates shall extend a minimum of ________ beyond the piping
2"
protection of PVC against thermal expansion shall be provided using ________
expansion joints
PVC or ABS piping which penetrate concrete floors, slabs or walls shall be
provided with sleeves, maintaining an annular space of _________ between pipe
and sleeve
1"
where new or existing building or structure is designed for use on a temporary or
emergency basis tear does not meet code requirements, no relief shall be granted
unless a ___________ has been filed
2
,plumbing permit application
the inspector shall authorize temporary or emergency uses for a building for no
more than _______
60 days
when using CPVC for hot and cold water distribution that is located in an approved
dwelling, the building cannot be more than _______ stories
6 new code, 3 old code
when using CPVC in a residential setting, this material cannot be within
__________ of any connection to a hot water tank
2'
where can CPVC be used in a commercial building
dedicated only for drinking fountains from water meter
PVC may be installed exclusively in commercial buildings in areas that incorporate
patron areas for the purpose of serving ________________ where this liquid waste
may drain indirectly into a floor sink or floor drain
all carbonated type beverages
sumps and tanks for sewage removed by mechanical or ejector methods made from
concrete it shall be at least _____ thick
3"
sumps and tanks for sewage removed by mechanical or ejector methods made from
cast iron shall be ________ thick
1/4"
steel sewage ejector tanks tear are installed above ground must be a minimum of
______ inches thick
1/8"
pex tubing may be used in any building as long as it is exclusively for __________
dedicated cold water piping to drinking water stations
3
, all products, systems and equipment used in the construction, installation,
alteration, repair, replacement or removal of any plumbing or drainage system or
part thereof, shall meet the requirements acceptable to __________
the board
all pipe, valves and fittings used in potable water system anticipated to be used for
human consumption shall comply with _________________
Federal safe water drinking act
notwithstanding the provisions of this code, all applicable products must meet the
energy efficiency standards outlined in M.G.L to the extent these requirements are
managed by law, no ______________ or other relief can be granted by the board to
allow use of a non-compliant product
variance
pex tubing and fittings may be used in commercial buildings for the purpose of
conveying reverse osmosis or other similar processes that produce purified water
from the ________ to one or more points of use for drinking water
point of treatment
cpvc pipe and/or pex tubing and fittings shall not be used for steam flushing of
water purification systems. Only _______ and fittings shall be used for this
purpose
316 stainless steel tube
what material is not allowed for installation underground for water piping
polypropylene
when using PVC for approved mixed use, it shall be connected to the main or
branch drain serving other fixtures to provide a/an ___________
point of waste dilution
the use of any non-ferrous pipe and fittings rated at a maximum service
temperature of _________ on the outlet of a relief valve with a discharge not
exceeding 105,000 BTU per hour shall be allowed
200 degrees
4
