Science Engineering Electrical Engineering
PLUMBING LEVEL 3 EXAM 2024-2025 ACTUAL
EXAM 60 QUESTIONS AND CORRECT DETAILED
ANSWERS |ALREADY GRADED A
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Practice questions for this set
Learn 3/7 Study with Learn
eliminated
Give this one a try later!
A journeyman and apprentice plumber who are employed by a master plumber are
renovating gas piping and tubing in an existing commercial building. A portion of
the renovation requires the removal of pipe and fittings. QUESTION: What answer
below shall be considered most correct to complete the following "Gas code
1
knowledge" related statement: Where piping containing gas is to be removed, the
line first shall be disconnected from all sources of gas and then thoroughly ________
A) Purged B) Capped off C) Flushed out D) Eliminated
: A journeyman plumber is installing the water distribution system in a new
residential dwelling. A one-inch copper water service and meter has been provided
by the city. The incoming water service P.S.I. is [85]. A pressure reducing valve has
been provided and limits incoming water pressure to 65 P.S.I. QUESTION: What
answer below shall be considered most correct to complete the following
2
, "Plumbing code knowledge" related statement: The code may require the
journeyman plumber to also install a ________.
A) Backflow preventer B) Check valve C) Pressure absorbing device D) Thermal
expansion tank
: A journeyman plumber is installing ½", ¾" and 1" schedule-40 black steel gas piping
for a natural gas system in a residential building. The ½" and ¾" pipe will be required
to penetrate floors and walls throughout the building. QUESTION: What answer
below shall be considered most correct to complete the following "Gas code
3
knowledge" related statement: The unthreaded portion of any size schedule-40
steel gas piping that penetrates a wall shall be no less than _____.
A) ½-inch B) A length equal to the pipe's diameter C) 1-inch D) 2"
A journeyman plumber and apprentice are installing 3-inch floor drains in an open-
parking-garage that is subject to freezing temperatures. QUESTION: What answer
below shall be considered most correct to complete the following "Plumbing code
knowledge" related statement: The installation of traps at the floor drain locations
which are found susceptible to freezing temperatures may be __________.
A)Increased to 4-inch B) Eliminated C) Wrapped with freeze protection cable D)
Insulated
Don't know?
Terms in this set (127)
,A journeyman plumber 2 inches
and an apprentice, who
are employed by a
master plumber, are
installing the DWV-
system and water
distribution system in a 2-
½ story single family
dwelling. QUESTION:
What answer below shall
be considered most
correct to complete the
following "Plumbing
code knowledge" related
statement: A trap that
serves a single shower
stall that is equipped with
a hand shower, a rain
head, and a standard
shower head shall be no
less than ________ in
minimum diameter
A) 1-½" B) 2" C) 2-½" D) 3"
, A journeyman plumber eliminated
and apprentice are
installing 3-inch floor
drains in an open-
parking-garage that is
subject to freezing
temperatures.
QUESTION: What answer
below shall be
considered most correct
to complete the
following "Plumbing
code knowledge" related
statement: The
installation of traps at the
floor drain locations
which are found
susceptible to freezing
temperatures may be
__________.
A)Increased to 4-inch B)
Eliminated C) Wrapped
with freeze protection
cable D) Insulated
PLUMBING LEVEL 3 EXAM 2024-2025 ACTUAL
EXAM 60 QUESTIONS AND CORRECT DETAILED
ANSWERS |ALREADY GRADED A
Leave the first rating
Practice questions for this set
Learn 3/7 Study with Learn
eliminated
Give this one a try later!
A journeyman and apprentice plumber who are employed by a master plumber are
renovating gas piping and tubing in an existing commercial building. A portion of
the renovation requires the removal of pipe and fittings. QUESTION: What answer
below shall be considered most correct to complete the following "Gas code
1
knowledge" related statement: Where piping containing gas is to be removed, the
line first shall be disconnected from all sources of gas and then thoroughly ________
A) Purged B) Capped off C) Flushed out D) Eliminated
: A journeyman plumber is installing the water distribution system in a new
residential dwelling. A one-inch copper water service and meter has been provided
by the city. The incoming water service P.S.I. is [85]. A pressure reducing valve has
been provided and limits incoming water pressure to 65 P.S.I. QUESTION: What
answer below shall be considered most correct to complete the following
2
, "Plumbing code knowledge" related statement: The code may require the
journeyman plumber to also install a ________.
A) Backflow preventer B) Check valve C) Pressure absorbing device D) Thermal
expansion tank
: A journeyman plumber is installing ½", ¾" and 1" schedule-40 black steel gas piping
for a natural gas system in a residential building. The ½" and ¾" pipe will be required
to penetrate floors and walls throughout the building. QUESTION: What answer
below shall be considered most correct to complete the following "Gas code
3
knowledge" related statement: The unthreaded portion of any size schedule-40
steel gas piping that penetrates a wall shall be no less than _____.
A) ½-inch B) A length equal to the pipe's diameter C) 1-inch D) 2"
A journeyman plumber and apprentice are installing 3-inch floor drains in an open-
parking-garage that is subject to freezing temperatures. QUESTION: What answer
below shall be considered most correct to complete the following "Plumbing code
knowledge" related statement: The installation of traps at the floor drain locations
which are found susceptible to freezing temperatures may be __________.
A)Increased to 4-inch B) Eliminated C) Wrapped with freeze protection cable D)
Insulated
Don't know?
Terms in this set (127)
,A journeyman plumber 2 inches
and an apprentice, who
are employed by a
master plumber, are
installing the DWV-
system and water
distribution system in a 2-
½ story single family
dwelling. QUESTION:
What answer below shall
be considered most
correct to complete the
following "Plumbing
code knowledge" related
statement: A trap that
serves a single shower
stall that is equipped with
a hand shower, a rain
head, and a standard
shower head shall be no
less than ________ in
minimum diameter
A) 1-½" B) 2" C) 2-½" D) 3"
, A journeyman plumber eliminated
and apprentice are
installing 3-inch floor
drains in an open-
parking-garage that is
subject to freezing
temperatures.
QUESTION: What answer
below shall be
considered most correct
to complete the
following "Plumbing
code knowledge" related
statement: The
installation of traps at the
floor drain locations
which are found
susceptible to freezing
temperatures may be
__________.
A)Increased to 4-inch B)
Eliminated C) Wrapped
with freeze protection
cable D) Insulated
