PLUMBING LEVEL 3 EXAM 2025 ACTUAL EXAM
60 QUESTIONS AND CORRECT DETAILED
ANSWERS
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
,A |journeyman |plumber 6 |inches
and |apprentice |are
|
| installing |lab |sinks |with
faucets |that |are
|
connected |to |an |acid
| waste |system |for-(special
hazardous |waste) |in|a
|
medical |lab. |What |answer
below |shall |be
|
considered |most|correct
to |complete |the
|
following |"Plumbing
| code |knowledge" |related
statement:|Vacuum
|
breakers |shall |be
installed |with |the |critical
| level |at |least __ _-inches
above|the|flood|level|rim
of|the |fixture|they|serve
|
and |on |the |discharge
|
| side |of |the |last |control
| valve |to |the |fixture.
A) |12 |B) |6 |C) |18 |D) |3
, What |answer |below |shall reduced |pressure |backflow |preventer |(RPBP)
be |considered |most
|
correct|to |complete |the
| following |"Plumbing
| code |knowledge" |related
statement: |No |plumbing
|
| permit |shall |be |issued |for
cross |connection
|
installations |that |require
_________ until |the
application |for |a |permit |is
accompanied |by|a|letter
|
| of |approval|from |the
Massachusetts
Department |of
|
Environmental |Protection
or |its |designee.
|
A) |RPBP |B) |A |"critical
level" |height|C)
|
| Atmospheric |vacuum
| breakers |D)|Water
| recycling |systems
60 QUESTIONS AND CORRECT DETAILED
ANSWERS
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
,A |journeyman |plumber 6 |inches
and |apprentice |are
|
| installing |lab |sinks |with
faucets |that |are
|
connected |to |an |acid
| waste |system |for-(special
hazardous |waste) |in|a
|
medical |lab. |What |answer
below |shall |be
|
considered |most|correct
to |complete |the
|
following |"Plumbing
| code |knowledge" |related
statement:|Vacuum
|
breakers |shall |be
installed |with |the |critical
| level |at |least __ _-inches
above|the|flood|level|rim
of|the |fixture|they|serve
|
and |on |the |discharge
|
| side |of |the |last |control
| valve |to |the |fixture.
A) |12 |B) |6 |C) |18 |D) |3
, What |answer |below |shall reduced |pressure |backflow |preventer |(RPBP)
be |considered |most
|
correct|to |complete |the
| following |"Plumbing
| code |knowledge" |related
statement: |No |plumbing
|
| permit |shall |be |issued |for
cross |connection
|
installations |that |require
_________ until |the
application |for |a |permit |is
accompanied |by|a|letter
|
| of |approval|from |the
Massachusetts
Department |of
|
Environmental |Protection
or |its |designee.
|
A) |RPBP |B) |A |"critical
level" |height|C)
|
| Atmospheric |vacuum
| breakers |D)|Water
| recycling |systems
