Massachusetts Plumbers Journeyman 2026-2027
Comprehensive Frequently Tested Exam Questions
With Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. CPVC (Chlorinated Polyvinyl Chloride) pipe and fittings may be used in the
following situations - ANSWER for hot and cold water distribution that is
located only in the dwelling portion of a residential dwelling, multiple family
dwelling, hotel, motel, inn, condominium and similar building six stories or
60 feet in height
2. The PEX tubing is used for hot and cold water distribution in residential
dwelling/buildings up to and including: - ANSWER three stories in height
3. Pex tubing shall NOT be installed any closer than? - ANSWER 24" inches
to any connection to a direct fired water heater, or boiler.
4. PVC/ABS shall not be used for drains in the following - ANSWER
- Commercial Kitchens
-Commercial Laundry rooms
-Commercial areas located in assisted living facilities, hotels, motels
,5. PVC/ABS MAY be used for drains in commercial applications necessary to
accommodate waste generated as a direct result of the business: - ANSWER
i. beauty salons;
ii. barber shops;
iii. manicure salons;
iv. pedicure salons;
v. photo-labs; and
-commercial buildings that incorporate patron areas for the purpose of serving
alcohol, soda or other similar carbonated type beverages where the
carbonated liquid waste shall drain directly into a floor sink or floor drain
6. A Brass closet flange shall have a minimum thickness of - ANSWER 1/8"
7. If the flange is composed of cast iron the flange shall have a minimum
thickness of - ANSWER 1/4" and the minimum caulking depth shall be
two inches
8. Cleanout plugs shall meet the following requirements - ANSWER Shall
be composed of brass or plastic
9. Building Drains (Inside Building). When the Sanitary Drain or Storm Drain is
installed in a trench excavated to a uniform width and level and the trench
will also encompasses the water service pipe, the drain piping shall be -
ANSWER bell and spigot cast iron tarred soil pipe with lead and oakum
joints.
,10.Deflection Test. A test deflecting the free end of a ten-foot length of hubless
cast iron soil pipe joined together with a coupling to a secured length of
pipe. The test assembly shall be subjected to an internal hydrostatic
pressure of - ANSWER (10) ten P.S.I.G and a minimum deflection of one-
inch per lineal foot and shall show no visible signs of leakage.
11.Hangers and supports for hubless cast iron soil piping shall conform to the
following requirements - ANSWER -each change of direction. (ii)
-When joining three or more fittings, there shall be a minimum of one hanger
for every three-feet or part thereof. v
12.Hubless Fittings. (i) There shall be a hanger installed at - ANSWER -each
change of direction
-When joining three or more fittings, there shall be a minimum of one hanger
for every three-feet or part thereof
13.Water Service Piping (Outside Building). The materials used shall be those
specified by the - ANSWER local municipality
14.The piping that penetrates concrete floors slabs or concrete walls shall be
provided with sleeves. Maintain an annular space of - ANSWER one-inch
between the pipe and sleeve.
15.The developed length distance from the fixture outlet to the trap weir shall
not exceed - ANSWER 24 inches
, 16.The piping shall be connected to cast iron soil pipe hubs using oakum and
no less than - ANSWER one-inch of molten lead
17.Caulk the joint along the inside and outside edges after it has cooled for -
ANSWER 4 minuets
18.Thermal Expansion. . Thermal expansion of PVC pipe occurs at the rate of
approximately? - ANSWER 3/8" inch per ten feet length per 100°F
temperature change
19.In a PVC-DWV system an expansion allowance of - ANSWER ½ inch per
ten feet length of pipe is required
20.Expansion joints shall be provided - ANSWER at every other branch
interval up to and including ten stories in height.
21.The expansion fitting shall be installed in a - ANSWER accessible
location in horizontal runs exceeding 20 feet in length.
22.The piping that penetrates concrete floors slabs or concrete walls shall be
provided with sleeves. Maintain an annular space of - ANSWER one-inch
between the pipe and sleeve.
23.Piping Trench Installations. Using sand or other fine granular material,
compact and backfill around the pipe to a point at least - ANSWER six-
inches over the crown of the pipe.
Comprehensive Frequently Tested Exam Questions
With Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. CPVC (Chlorinated Polyvinyl Chloride) pipe and fittings may be used in the
following situations - ANSWER for hot and cold water distribution that is
located only in the dwelling portion of a residential dwelling, multiple family
dwelling, hotel, motel, inn, condominium and similar building six stories or
60 feet in height
2. The PEX tubing is used for hot and cold water distribution in residential
dwelling/buildings up to and including: - ANSWER three stories in height
3. Pex tubing shall NOT be installed any closer than? - ANSWER 24" inches
to any connection to a direct fired water heater, or boiler.
4. PVC/ABS shall not be used for drains in the following - ANSWER
- Commercial Kitchens
-Commercial Laundry rooms
-Commercial areas located in assisted living facilities, hotels, motels
,5. PVC/ABS MAY be used for drains in commercial applications necessary to
accommodate waste generated as a direct result of the business: - ANSWER
i. beauty salons;
ii. barber shops;
iii. manicure salons;
iv. pedicure salons;
v. photo-labs; and
-commercial buildings that incorporate patron areas for the purpose of serving
alcohol, soda or other similar carbonated type beverages where the
carbonated liquid waste shall drain directly into a floor sink or floor drain
6. A Brass closet flange shall have a minimum thickness of - ANSWER 1/8"
7. If the flange is composed of cast iron the flange shall have a minimum
thickness of - ANSWER 1/4" and the minimum caulking depth shall be
two inches
8. Cleanout plugs shall meet the following requirements - ANSWER Shall
be composed of brass or plastic
9. Building Drains (Inside Building). When the Sanitary Drain or Storm Drain is
installed in a trench excavated to a uniform width and level and the trench
will also encompasses the water service pipe, the drain piping shall be -
ANSWER bell and spigot cast iron tarred soil pipe with lead and oakum
joints.
,10.Deflection Test. A test deflecting the free end of a ten-foot length of hubless
cast iron soil pipe joined together with a coupling to a secured length of
pipe. The test assembly shall be subjected to an internal hydrostatic
pressure of - ANSWER (10) ten P.S.I.G and a minimum deflection of one-
inch per lineal foot and shall show no visible signs of leakage.
11.Hangers and supports for hubless cast iron soil piping shall conform to the
following requirements - ANSWER -each change of direction. (ii)
-When joining three or more fittings, there shall be a minimum of one hanger
for every three-feet or part thereof. v
12.Hubless Fittings. (i) There shall be a hanger installed at - ANSWER -each
change of direction
-When joining three or more fittings, there shall be a minimum of one hanger
for every three-feet or part thereof
13.Water Service Piping (Outside Building). The materials used shall be those
specified by the - ANSWER local municipality
14.The piping that penetrates concrete floors slabs or concrete walls shall be
provided with sleeves. Maintain an annular space of - ANSWER one-inch
between the pipe and sleeve.
15.The developed length distance from the fixture outlet to the trap weir shall
not exceed - ANSWER 24 inches
, 16.The piping shall be connected to cast iron soil pipe hubs using oakum and
no less than - ANSWER one-inch of molten lead
17.Caulk the joint along the inside and outside edges after it has cooled for -
ANSWER 4 minuets
18.Thermal Expansion. . Thermal expansion of PVC pipe occurs at the rate of
approximately? - ANSWER 3/8" inch per ten feet length per 100°F
temperature change
19.In a PVC-DWV system an expansion allowance of - ANSWER ½ inch per
ten feet length of pipe is required
20.Expansion joints shall be provided - ANSWER at every other branch
interval up to and including ten stories in height.
21.The expansion fitting shall be installed in a - ANSWER accessible
location in horizontal runs exceeding 20 feet in length.
22.The piping that penetrates concrete floors slabs or concrete walls shall be
provided with sleeves. Maintain an annular space of - ANSWER one-inch
between the pipe and sleeve.
23.Piping Trench Installations. Using sand or other fine granular material,
compact and backfill around the pipe to a point at least - ANSWER six-
inches over the crown of the pipe.
