LEVEL 1 WATER DISTRIBUTION
PRACTICE TEST WITH FULL PACK
SOLUTIONS
The lminimum land lmaximum lchloride lresidual lin la lwater ldistribution lsystem lis l? l-
lcorrect lanswers l-0.2 lmg/l land l4mg/L lof lfree lchlorine
Nitrate lmay lnot lexceed lwhat lconcentration lwhen ltested lyearly lfor la lgroundwater
ltreatment lplant l? l- lcorrect lanswers l-10 lmg/L
The lminimum lnumber lof ltotal lcoliform lsamples lthat lmust lbe lcollected lper lmonth
lis lbased lon lWich lof lthe lfollowing l? l- lcorrect lanswers l-The lpopulation lserved lby
lthe lsystem
When la ldistribution lbacteriological lsample lis lpositive lfor la ltotal lcoliform lthe
lprocedure lis l? l- lcorrect lanswers l-Repeat lthe lsample land ltake la lsample l5
lconnections lupstream land ldownstream lto lconfirm ltotal lcoliform
For llead land lcopper lsample lthe lwater lmust lbe lIn lthe lpipeline lfor lat lleast? l-
lcorrect lanswers l-6 lhours
, What lis lhydraulic lgrade lline l? l- lcorrect lanswers l-A lline lto lwhich lthe lwater llevel
lwould lrise lin la lsmall l,vertical ltube,connected lto lthe lpipe
How loften lshould lcathodic lprotection lanodes lin lyour lsystem lbe linspected? l-
lcorrect lanswers l-Every lyear
Water lpipelines lare lgenerally ldesigned lto lcarry lwater lat la lvelocity lbelow l? l-
lcorrect lanswers l-2.5b lFPS. lFeet lper lsecond
Energy luse lin lwater lsystems lis ldefined lbest lby l? l- lcorrect lanswers l-Energy luse
lvaries lamong lsystems land lan lenergy linventory lstudy lwould lneed lto lbe
lconducted lto ldetermine lrelationships
The lminimum lrecommended lseparation ldistance lbetween la lwater lmain land la
lstorm lsewer lis l? l- lcorrect lanswers l-6 lfeet
Which lof lthe lfollowing lshould lbe lin lan lorganization lplan l? l- lcorrect lanswers l-
Identifies lclear llines l,defines lthe ldivisions lof llabor l,establishes lunity lof lcommand
If lpipelines lare lnot lrestrained lusing lsteel lrods lconcrete lthrust lblocks lcan lbe lused
lat l? l- lcorrect lanswers l-Every lbend land ltransition
Engineering lDrawings lthat lshow lthe ldepth lof lpipe, lthe lpipe llocation lboth lvertically
land lhorizontally land lthe lcorrect ldistance lform la lreference lpoint lare lknown las
lwhich lof lthe lfollowing l- lcorrect lanswers l-Plan land lprofile ldrawings
Which lare lthe lcomponents lof ldirecting lstaff l? l- lcorrect lanswers l-Motivating l&
lcommunicating
The laccuracy lof llarge lmeters lshould lfall lwithin lwhat lrange l? l- lcorrect lanswers l-
Not lless lthan l97% lnot lmore lthan l103%
In lsome lolder lwater lsystem llead lservice lline lstill lexist. lWhat lwould lbe lthe lbest
lpractice lwhen lfinding llead lpipe l? l- lcorrect lanswers l-Be lreplaced
What lis lthe lacceptable lrange lfor lwater lloss lin la ltypical lmunicipal ldistribution
lsystem lthat lhas la lvariety lof lpvc land ldi lpipe l? l- lcorrect lanswers l-20% l(80%
leffienciency)
What lis la lmajor lcause lof lunderground lconstruction ldeaths l? l- lcorrect lanswers l-
Lack lof lshoring lor lshoring lfailure
If lthe ltds lis lmarginally ltoo lhigh lfor lthe lpump lthe llikely lresult lwill lbe l? l- lcorrect
lanswers l-Decrease lin lflow lrate
Air lrelease lvalves lare linstalled lat lwhat llocation lin la lwater lline l? l- lcorrect lanswers
l-At lhigh lpoints lof la lpipe lline
The lmaximum lpressure lat lservice lconnections lshould lbe lless lthan l? l- lcorrect
lanswers l-100 lpsi
PRACTICE TEST WITH FULL PACK
SOLUTIONS
The lminimum land lmaximum lchloride lresidual lin la lwater ldistribution lsystem lis l? l-
lcorrect lanswers l-0.2 lmg/l land l4mg/L lof lfree lchlorine
Nitrate lmay lnot lexceed lwhat lconcentration lwhen ltested lyearly lfor la lgroundwater
ltreatment lplant l? l- lcorrect lanswers l-10 lmg/L
The lminimum lnumber lof ltotal lcoliform lsamples lthat lmust lbe lcollected lper lmonth
lis lbased lon lWich lof lthe lfollowing l? l- lcorrect lanswers l-The lpopulation lserved lby
lthe lsystem
When la ldistribution lbacteriological lsample lis lpositive lfor la ltotal lcoliform lthe
lprocedure lis l? l- lcorrect lanswers l-Repeat lthe lsample land ltake la lsample l5
lconnections lupstream land ldownstream lto lconfirm ltotal lcoliform
For llead land lcopper lsample lthe lwater lmust lbe lIn lthe lpipeline lfor lat lleast? l-
lcorrect lanswers l-6 lhours
, What lis lhydraulic lgrade lline l? l- lcorrect lanswers l-A lline lto lwhich lthe lwater llevel
lwould lrise lin la lsmall l,vertical ltube,connected lto lthe lpipe
How loften lshould lcathodic lprotection lanodes lin lyour lsystem lbe linspected? l-
lcorrect lanswers l-Every lyear
Water lpipelines lare lgenerally ldesigned lto lcarry lwater lat la lvelocity lbelow l? l-
lcorrect lanswers l-2.5b lFPS. lFeet lper lsecond
Energy luse lin lwater lsystems lis ldefined lbest lby l? l- lcorrect lanswers l-Energy luse
lvaries lamong lsystems land lan lenergy linventory lstudy lwould lneed lto lbe
lconducted lto ldetermine lrelationships
The lminimum lrecommended lseparation ldistance lbetween la lwater lmain land la
lstorm lsewer lis l? l- lcorrect lanswers l-6 lfeet
Which lof lthe lfollowing lshould lbe lin lan lorganization lplan l? l- lcorrect lanswers l-
Identifies lclear llines l,defines lthe ldivisions lof llabor l,establishes lunity lof lcommand
If lpipelines lare lnot lrestrained lusing lsteel lrods lconcrete lthrust lblocks lcan lbe lused
lat l? l- lcorrect lanswers l-Every lbend land ltransition
Engineering lDrawings lthat lshow lthe ldepth lof lpipe, lthe lpipe llocation lboth lvertically
land lhorizontally land lthe lcorrect ldistance lform la lreference lpoint lare lknown las
lwhich lof lthe lfollowing l- lcorrect lanswers l-Plan land lprofile ldrawings
Which lare lthe lcomponents lof ldirecting lstaff l? l- lcorrect lanswers l-Motivating l&
lcommunicating
The laccuracy lof llarge lmeters lshould lfall lwithin lwhat lrange l? l- lcorrect lanswers l-
Not lless lthan l97% lnot lmore lthan l103%
In lsome lolder lwater lsystem llead lservice lline lstill lexist. lWhat lwould lbe lthe lbest
lpractice lwhen lfinding llead lpipe l? l- lcorrect lanswers l-Be lreplaced
What lis lthe lacceptable lrange lfor lwater lloss lin la ltypical lmunicipal ldistribution
lsystem lthat lhas la lvariety lof lpvc land ldi lpipe l? l- lcorrect lanswers l-20% l(80%
leffienciency)
What lis la lmajor lcause lof lunderground lconstruction ldeaths l? l- lcorrect lanswers l-
Lack lof lshoring lor lshoring lfailure
If lthe ltds lis lmarginally ltoo lhigh lfor lthe lpump lthe llikely lresult lwill lbe l? l- lcorrect
lanswers l-Decrease lin lflow lrate
Air lrelease lvalves lare linstalled lat lwhat llocation lin la lwater lline l? l- lcorrect lanswers
l-At lhigh lpoints lof la lpipe lline
The lmaximum lpressure lat lservice lconnections lshould lbe lless lthan l? l- lcorrect
lanswers l-100 lpsi
