MASSACHUSETTS
PLUMBERS
JOURNEYMAN EXAM
K
QUESTIONS WITH
C
VERIFIED SOLUTIONS
LO
ALL CORRECT
YC
D
U
ST
,Existing Work
A plumbing system or any part thereof installed prior to March 11, 2005.
Soil Pipe
Any pipe that conveys the discharge of toilets, urinals or fixtures having similar functions to the
building drain or building sewer. The discharge may be conveyed with or without the discharge
from other fixtures
K
Water Distribution Pipe
A pipe within the building or on the premises that conveys water from the water service pipe to
the point of usage
C
Barometric Loop.
LO
A vertical loop of pipe, rising to a height sufficient to prevent back-siphonage from occurring in
the potable water supply pipe. (Approximately 35 feet, depending on the weight of the
atmosphere.)
YC
Developed Length
The length of a pipeline as measured along the center line of the pipe or fittings.
Roughing-in.
The installation of all parts of the plumbing system that can be completed prior to the installation
D
of fixtures. This includes drainage piping, water supply piping, vent piping, the necessary fixture
supports, and any fixtures that are built into the building.
U
Trap Seal
The vertical distance between the crown weir and the top of the dip of the trap.
ST
Air Gap (Drainage System).
The unobstructed vertical distance through the free atmosphere between the outlet of a waste
pipe and the flood level rim of the receptacle into which the waste discharges.
Air
Fixture Unit.
A unit of liquid flow used in sizing both supply and drainage pipes. It is equal to 1 cubic foot per
minute or approximately 7.5 gallons per minute.
,Liquid Waste
Discharge from any fixture, appliance, area or appurtenance that does not contain human or
animal waste matter suspended in a solution.
Vacuum
Any pressure less than that exerted by the atmosphere
K
Branch Interval
A distance along a soil or waste stack corresponding in general to a story height, but not less
C
than eight feet in vertical height, and wherein the horizontal branches from one floor or story of a
building are connected to the stack
LO
Testing water supply shall be at a pressure no less than?
125 PSI
YC
Storm or Sanitary drains shall be installed at a slope that:
a slope that produces a computed velocity of discharge of not less than two feet per second.
Horizontal drainage piping which is (3) three inches in diameter or smaller shall be installed with
a minimum uniform pitch
D
¼ inch per foot
U
Horizontal drainage piping which is larger than three inches in diameter shall be installed with a
minimum uniform pitch of
1/8 inch per foot
ST
Special Labs. All licensed plumbers and plumbing apprentices installing pipe connections or
working on drains to hospital waste and vent systems, mortuary waste and vent systems,
laboratory waste and vent systems, dental waste and vent systems and plumbing systems in
radioactive sensitive areas
shall have the surface of their body and clothing protected by disposable or washable gowns
similar or equal to the gowns, gloves and face masks worn by surgical staff.
, Whenever there is reason to believe that the plumbing system of any building has become
defective, it shall be subjected
test and/or inspection, and any defects found shall be corrected as required in writing by the
Inspector
Waste and Vent shall be tested for?
until there is a uniform gauge pressure of five P.S.I.G. or sufficient pressure to balance a column
of mercury ten inches in height. This pressure shall be held without introduction of additional air
for a period of at least 15 minutes. The gauge used for this test shall be calibrated in increments
K
no greater than 1/10 of a pound. c
C
Upon completion of a section or of the entire water supply system when roughed, it shall be
tested and proved tight under a pressure not less than
125 pounds per square inch
LO
Upon notice of a request for an Inspection of the rough plumbing, the Inspector shall make the
Inspection within
two working days after receipt of such notice
YC
Two acceptable tests for Drain and Waste
Peppermint Test and Air Test
D
Quarter bends, or their equivalent may be used in soil and waste lines when the change in the
direction of the flow is from the
horizontal to the vertical.
U
Short sweep fittings may be used in a branch waste line when the waste line serves only
ST
one outlet and cleanouts are provided.
List 3 Prohibited Fittings
-No fitting that incorporates a straight T branch shall be used as a drainage fitting.
- No running threads, bands or saddles shall be used in a drainage system.
-A fitting commonly referred to as a "Sisson Joint" is prohibited
A dead end may be used to?
Extend the cleanout.
PLUMBERS
JOURNEYMAN EXAM
K
QUESTIONS WITH
C
VERIFIED SOLUTIONS
LO
ALL CORRECT
YC
D
U
ST
,Existing Work
A plumbing system or any part thereof installed prior to March 11, 2005.
Soil Pipe
Any pipe that conveys the discharge of toilets, urinals or fixtures having similar functions to the
building drain or building sewer. The discharge may be conveyed with or without the discharge
from other fixtures
K
Water Distribution Pipe
A pipe within the building or on the premises that conveys water from the water service pipe to
the point of usage
C
Barometric Loop.
LO
A vertical loop of pipe, rising to a height sufficient to prevent back-siphonage from occurring in
the potable water supply pipe. (Approximately 35 feet, depending on the weight of the
atmosphere.)
YC
Developed Length
The length of a pipeline as measured along the center line of the pipe or fittings.
Roughing-in.
The installation of all parts of the plumbing system that can be completed prior to the installation
D
of fixtures. This includes drainage piping, water supply piping, vent piping, the necessary fixture
supports, and any fixtures that are built into the building.
U
Trap Seal
The vertical distance between the crown weir and the top of the dip of the trap.
ST
Air Gap (Drainage System).
The unobstructed vertical distance through the free atmosphere between the outlet of a waste
pipe and the flood level rim of the receptacle into which the waste discharges.
Air
Fixture Unit.
A unit of liquid flow used in sizing both supply and drainage pipes. It is equal to 1 cubic foot per
minute or approximately 7.5 gallons per minute.
,Liquid Waste
Discharge from any fixture, appliance, area or appurtenance that does not contain human or
animal waste matter suspended in a solution.
Vacuum
Any pressure less than that exerted by the atmosphere
K
Branch Interval
A distance along a soil or waste stack corresponding in general to a story height, but not less
C
than eight feet in vertical height, and wherein the horizontal branches from one floor or story of a
building are connected to the stack
LO
Testing water supply shall be at a pressure no less than?
125 PSI
YC
Storm or Sanitary drains shall be installed at a slope that:
a slope that produces a computed velocity of discharge of not less than two feet per second.
Horizontal drainage piping which is (3) three inches in diameter or smaller shall be installed with
a minimum uniform pitch
D
¼ inch per foot
U
Horizontal drainage piping which is larger than three inches in diameter shall be installed with a
minimum uniform pitch of
1/8 inch per foot
ST
Special Labs. All licensed plumbers and plumbing apprentices installing pipe connections or
working on drains to hospital waste and vent systems, mortuary waste and vent systems,
laboratory waste and vent systems, dental waste and vent systems and plumbing systems in
radioactive sensitive areas
shall have the surface of their body and clothing protected by disposable or washable gowns
similar or equal to the gowns, gloves and face masks worn by surgical staff.
, Whenever there is reason to believe that the plumbing system of any building has become
defective, it shall be subjected
test and/or inspection, and any defects found shall be corrected as required in writing by the
Inspector
Waste and Vent shall be tested for?
until there is a uniform gauge pressure of five P.S.I.G. or sufficient pressure to balance a column
of mercury ten inches in height. This pressure shall be held without introduction of additional air
for a period of at least 15 minutes. The gauge used for this test shall be calibrated in increments
K
no greater than 1/10 of a pound. c
C
Upon completion of a section or of the entire water supply system when roughed, it shall be
tested and proved tight under a pressure not less than
125 pounds per square inch
LO
Upon notice of a request for an Inspection of the rough plumbing, the Inspector shall make the
Inspection within
two working days after receipt of such notice
YC
Two acceptable tests for Drain and Waste
Peppermint Test and Air Test
D
Quarter bends, or their equivalent may be used in soil and waste lines when the change in the
direction of the flow is from the
horizontal to the vertical.
U
Short sweep fittings may be used in a branch waste line when the waste line serves only
ST
one outlet and cleanouts are provided.
List 3 Prohibited Fittings
-No fitting that incorporates a straight T branch shall be used as a drainage fitting.
- No running threads, bands or saddles shall be used in a drainage system.
-A fitting commonly referred to as a "Sisson Joint" is prohibited
A dead end may be used to?
Extend the cleanout.
