Massachusetts Plumbers Journeyman
Exam Questions With Complete Solutions
Existing |Work |- |CORRECT |ANSWER✔✔-A |plumbing |system |or |any |part |thereof |installed |prior |
to |March |11, |2005.
Soil |Pipe |- |CORRECT |ANSWER✔✔-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
Water |Distribution |Pipe |- |CORRECT |ANSWER✔✔-A |pipe |within |the |building |or |on |the |premises
|that |conveys |water |from |the |water |service |pipe |to |the |point |of |usage
Barometric |Loop. |- |CORRECT |ANSWER✔✔-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.)
Developed |Length |- |CORRECT |ANSWER✔✔-The |length |of |a |pipeline |as |measured |along |the |
center |line |of |the |pipe |or |fittings.
Roughing-in. |- |CORRECT |ANSWER✔✔-The |installation |of |all |parts |of |the |plumbing |system |that |
can |be |completed |prior |to |the |installation |of |fixtures. |This |includes |drainage |piping, |water |
supply |piping, |vent |piping, |the |necessary |fixture |supports, |and |any |fixtures |that |are |built |into |
the |building.
Trap |Seal |- |CORRECT |ANSWER✔✔-The |vertical |distance |between |the |crown |weir |and |the |top |
of |the |dip |of |the |trap.
,Air |Gap |(Drainage |System). |- |CORRECT |ANSWER✔✔-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. |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-Discharge |from |any |fixture, |appliance, |area |or |
appurtenance |that |does |not |contain |human |or |animal |waste |matter |suspended |in |a |solution.
Vacuum |- |CORRECT |ANSWER✔✔-Any |pressure |less |than |that |exerted |by |the |atmosphere
Branch |Interval |- |CORRECT |ANSWER✔✔-A |distance |along |a |soil |or |waste |stack |corresponding |
in |general |to |a |story |height, |but |not |less |than |eight |feet |in |vertical |height, |and |wherein |the |
horizontal |branches |from |one |floor |or |story |of |a |building |are |connected |to |the |stack
Testing |water |supply |shall |be |at |a |pressure |no |less |than? |- |CORRECT |ANSWER✔✔-125 |PSI
Storm |or |Sanitary |drains |shall |be |installed |at |a |slope |that: |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-¼ |inch |per |foot
Horizontal |drainage |piping |which |is |larger |than |three |inches |in |diameter |shall |be |installed |with
|a |minimum |uniform |pitch |of |- |CORRECT |ANSWER✔✔-1/8 |inch |per |foot
,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 |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-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? |- |CORRECT |ANSWER✔✔-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 |no |greater |
than |1/10 |of |a |pound. |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 |- |CORRECT |ANSWER✔✔-125 |pounds |
per |square |inch
Upon |notice |of |a |request |for |an |Inspection |of |the |rough |plumbing, |the |Inspector |shall |make |
the |Inspection |within |- |CORRECT |ANSWER✔✔-two |working |days |after |receipt |of |such |notice
Two |acceptable |tests |for |Drain |and |Waste |- |CORRECT |ANSWER✔✔-Peppermint |Test |and |Air |
Test
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 |- |CORRECT |ANSWER✔✔-horizontal |to |the |vertical.
Short |sweep |fittings |may |be |used |in |a |branch |waste |line |when |the |waste |line |serves |only |- |
CORRECT |ANSWER✔✔-one |outlet |and |cleanouts |are |provided.
, List |3 |Prohibited |Fittings |- |CORRECT |ANSWER✔✔--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? |- |CORRECT |ANSWER✔✔-Extend |the |cleanout.
Where |trenches |are |excavated |below |grade |such |that |the |bottom |of |the |trench |does |not |form
|the |bed |for |the |pipe, |the |trench |shall |be? |- |CORRECT |ANSWER✔✔-back-filled |to |grade |with |
sand |tamped |in |place |so |as |to |provide |a |uniform |bearing |surface |for |the |pipe |between |joints.
Where |rock |is |encountered |in |trenching, |The |rock |shall |be |removed |to |a |point |- |CORRECT |
ANSWER✔✔-at |least |three |inches |below |the |grade |line |of |the |trench |and |the |trench |shall |be |
backfilled |to |grade |with |sand |tamped |in |place |so |as |to |provide |a |uniform |bearing |for |the |pipe |
between |joints; |and |b. |care |shall |be |exercised |to |ensure |that |no |portion |of |the |pipe, |including |
its |joints, |rests |on |any |portion |of |a |rock
Backfilling. |1. |Until |the |crown |of |the |pipe |is |covered |by |at |lest____________ |feet |of |tamped |
earth |considerable |care |shall |be |exercised |in |backfilling |trenches |- |CORRECT |ANSWER✔✔-two |
feet
When |are |deviations |from |the |plumbing |code |permited? |- |CORRECT |ANSWER✔✔--Existing |
buildings |for |repair |or |remodel |work
-Inspectors |permission |prior |to |the |start |of |the |job
-They |are |necessary |and |conform |to |the |intent |of |the |code
If |a |plumbing |inspector |finds |code |violations |in |any |existing |plumbing |or |gas |system |that |may |
cause |a |health |or |safety |hazard |the |inspector |shall...? |- |CORRECT |ANSWER✔✔-Notify |the |
owner |or |his |or |her |agent.
Exam Questions With Complete Solutions
Existing |Work |- |CORRECT |ANSWER✔✔-A |plumbing |system |or |any |part |thereof |installed |prior |
to |March |11, |2005.
Soil |Pipe |- |CORRECT |ANSWER✔✔-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
Water |Distribution |Pipe |- |CORRECT |ANSWER✔✔-A |pipe |within |the |building |or |on |the |premises
|that |conveys |water |from |the |water |service |pipe |to |the |point |of |usage
Barometric |Loop. |- |CORRECT |ANSWER✔✔-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.)
Developed |Length |- |CORRECT |ANSWER✔✔-The |length |of |a |pipeline |as |measured |along |the |
center |line |of |the |pipe |or |fittings.
Roughing-in. |- |CORRECT |ANSWER✔✔-The |installation |of |all |parts |of |the |plumbing |system |that |
can |be |completed |prior |to |the |installation |of |fixtures. |This |includes |drainage |piping, |water |
supply |piping, |vent |piping, |the |necessary |fixture |supports, |and |any |fixtures |that |are |built |into |
the |building.
Trap |Seal |- |CORRECT |ANSWER✔✔-The |vertical |distance |between |the |crown |weir |and |the |top |
of |the |dip |of |the |trap.
,Air |Gap |(Drainage |System). |- |CORRECT |ANSWER✔✔-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. |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-Discharge |from |any |fixture, |appliance, |area |or |
appurtenance |that |does |not |contain |human |or |animal |waste |matter |suspended |in |a |solution.
Vacuum |- |CORRECT |ANSWER✔✔-Any |pressure |less |than |that |exerted |by |the |atmosphere
Branch |Interval |- |CORRECT |ANSWER✔✔-A |distance |along |a |soil |or |waste |stack |corresponding |
in |general |to |a |story |height, |but |not |less |than |eight |feet |in |vertical |height, |and |wherein |the |
horizontal |branches |from |one |floor |or |story |of |a |building |are |connected |to |the |stack
Testing |water |supply |shall |be |at |a |pressure |no |less |than? |- |CORRECT |ANSWER✔✔-125 |PSI
Storm |or |Sanitary |drains |shall |be |installed |at |a |slope |that: |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-¼ |inch |per |foot
Horizontal |drainage |piping |which |is |larger |than |three |inches |in |diameter |shall |be |installed |with
|a |minimum |uniform |pitch |of |- |CORRECT |ANSWER✔✔-1/8 |inch |per |foot
,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 |- |CORRECT |ANSWER✔✔-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 |- |CORRECT |ANSWER✔✔-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? |- |CORRECT |ANSWER✔✔-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 |no |greater |
than |1/10 |of |a |pound. |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 |- |CORRECT |ANSWER✔✔-125 |pounds |
per |square |inch
Upon |notice |of |a |request |for |an |Inspection |of |the |rough |plumbing, |the |Inspector |shall |make |
the |Inspection |within |- |CORRECT |ANSWER✔✔-two |working |days |after |receipt |of |such |notice
Two |acceptable |tests |for |Drain |and |Waste |- |CORRECT |ANSWER✔✔-Peppermint |Test |and |Air |
Test
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 |- |CORRECT |ANSWER✔✔-horizontal |to |the |vertical.
Short |sweep |fittings |may |be |used |in |a |branch |waste |line |when |the |waste |line |serves |only |- |
CORRECT |ANSWER✔✔-one |outlet |and |cleanouts |are |provided.
, List |3 |Prohibited |Fittings |- |CORRECT |ANSWER✔✔--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? |- |CORRECT |ANSWER✔✔-Extend |the |cleanout.
Where |trenches |are |excavated |below |grade |such |that |the |bottom |of |the |trench |does |not |form
|the |bed |for |the |pipe, |the |trench |shall |be? |- |CORRECT |ANSWER✔✔-back-filled |to |grade |with |
sand |tamped |in |place |so |as |to |provide |a |uniform |bearing |surface |for |the |pipe |between |joints.
Where |rock |is |encountered |in |trenching, |The |rock |shall |be |removed |to |a |point |- |CORRECT |
ANSWER✔✔-at |least |three |inches |below |the |grade |line |of |the |trench |and |the |trench |shall |be |
backfilled |to |grade |with |sand |tamped |in |place |so |as |to |provide |a |uniform |bearing |for |the |pipe |
between |joints; |and |b. |care |shall |be |exercised |to |ensure |that |no |portion |of |the |pipe, |including |
its |joints, |rests |on |any |portion |of |a |rock
Backfilling. |1. |Until |the |crown |of |the |pipe |is |covered |by |at |lest____________ |feet |of |tamped |
earth |considerable |care |shall |be |exercised |in |backfilling |trenches |- |CORRECT |ANSWER✔✔-two |
feet
When |are |deviations |from |the |plumbing |code |permited? |- |CORRECT |ANSWER✔✔--Existing |
buildings |for |repair |or |remodel |work
-Inspectors |permission |prior |to |the |start |of |the |job
-They |are |necessary |and |conform |to |the |intent |of |the |code
If |a |plumbing |inspector |finds |code |violations |in |any |existing |plumbing |or |gas |system |that |may |
cause |a |health |or |safety |hazard |the |inspector |shall...? |- |CORRECT |ANSWER✔✔-Notify |the |
owner |or |his |or |her |agent.
