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Class "B" Water Operator - 200 Practice questions and answers
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Class "B" Water Operator - 200 Practice questions and answersClass "B" Water Operator - 200 Practice questions and answersClass "B" Water Operator - 200 Practice questions and answersClass "B" Water Operator - 200 Practice questions and answersClass "B" Water Operator - 200 Practice questions and a...

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  • November 7, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • class b water operator 200 practice questions

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  • Class "B" Water Operator
  • Class "B" Water Operator

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Class "B" Water Operator -
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200 Practice questions and answers
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inlxcertainlxcostallxareas,lxintrusionlxoflxsealxwaterlxinlxtolxgroundwaterlxbasinlxislxmostlxcommonlylxcausedlxby?lx-
lxcorrectlxanswers-overlxpumpinglxfromlxthelxgroundlxbasin

Riparianlxrightslxarelxacquiredlxhow?lx-lxcorrectlxanswers-withlxtitlelxtolxlandlxborderinglxsurfacelxwater
anlxundergroundlxlayerlxoflxrocklxorlxsoillxthatlxpermeateslxthelxpassagelxoflxwaterlxislxcalledlxwhat?lx-
lxcorrectlxanswers-anlxaquifer

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waterlxthatlxislxdrinkablelxandlxfreelxfromlxbacterialxandlxtoxins
highlxcolorlxcontentlxinlxwaterlxwouldlxbelxindicativelxoflxalllxthelxfollowinglxexceptlx:lx-lxcorrectlxanswers-
alxhighlxPH
whatlxislxNOTlxalxcommonlxpracticelxinlxwatershedlxmanagement?lx-lxcorrectlxanswers-
allowlxwastewaterlxdischargeslxintolxthelxreservoir?
controllinglxtastelxandlxodorlxproblemslxandlxorganiclxloadinglxwithinlxthelxreservoirlxmaylxreducelxorlxeliminate:l
x-lxcorrectlxanswers-activatedlxcarbonlxtreatment

chemicallxcontrollxoflxbothlxplanktonlxandlxperiphytonlxinlxdomesticlxwaterlxsupplylxreservoirslxislxprimarilylxuse
dlxtolxpreventlxorlxcontrol:lx-lxcorrectlxanswers-tastelxandlxodorlxproblemslxresultinglxfromlxalgaelxblooms.
thelxthreelxmajorlxwaterlxqualitylxindicatorslxthatlxaffectlxthelxefficiencylxoflxusinglxcopperlxsulfatelxaslxanlxalgicide
lxare:lx-lxcorrectlxanswers-alkalinity,lxsuspendedlxmatter,lxandlxwaterlxtemperature.

duringlxperiodslxoflxthermallxstratificationlxandlxanaerobiclxconditions,lxwaterlxqualitylximprovementslxarelxobt
ainedlxby:lx-lxcorrectlxanswers-thelxadditionlxoflxdissolvedlxoxygen
thelxmostlxcommonlxchemicallxusedlxtolxtreatlxalgaelxbloomslxis?lx-lxcorrectlxanswers-cusolx4
thelxpurposelxoflxscreeninglxdeviceslxislxtolxremove:lx-lxcorrectlxanswers-largelxsolids
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yers,lxthelxreservoirlxdestratifies,lxcausing:lx-lxcorrectlxanswers-turnoverlxtolxoccur.
thelxfollowinglxconditionslxwouldlxbelxmostlxconducivelxtolxtriggeringlxanlxalgaelxbloom:lx-lxcorrectlxanswers-
availablelxnutrientslxsuchlxaslxnitrogenlxandlxphosphorouslxandlxabundantlxsunlight.
thelxMCLlxforlxchlorideslxis?lx-lxcorrectlxanswers-250lxmg/l
thelxMCLlxforlxironlxis?lx-lxcorrectlxanswers-0.3lxmg/l
thelxMCLlxforlxdissolvedlxsolidslxis?lx-lxcorrectlxanswers-500lxmg/l
thelxdisinfectionlxresiduallxnecessarylxinlxthelxdistributionlxsystemlxunderlxthelxsurfacelxwaterlxtreatmentlxrulelxi
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thelxcorrectlxstatementlxpertaininglxtolxpotablelxwaterlxis:lx-lxcorrectlxanswers-
ironlxislxalxsecondarylxregulationlxwithlxanlxMCLlxoflx0.3lxmg/l
thelxprimarylxMCLlxforlxtthmlxislx:lx-lxcorrectlxanswers-.080lxmg/llxorlx80lxppb
thelxsecondarylxMCLlxforlxfluoridelxis:lx-lxcorrectlxanswers-2.0lxmg/l
thelxcorrectlxstatementlxpertaininglxtolxpotablelxwaterlxislx:lx-lxcorrectlxanswers-
odorlxislxalxsecondarylxregulationlxwithlxanlxMCLlxoflx3lxTONlx(thresholdlxodorlxnumber)
thelxprimarylxMCLlxforlxtthmlxislx:lx-lxcorrectlxanswers-.080lxmg/llxorlx80lxppb
thelxfollowinglxdoeslxnotlxfalllxunderlxthelxcategorylxoflxsecondarylxdrinkinglxwaterlxstandards:lx-
lxcorrectlxanswers-nitrate

concerninglxradionuclides,lxsupplierslxoflxwaterlxshalllxmonitorlxatlxleast:lx-lxcorrectlxanswers-
oncelxeverylx36lxmonths

, iflxalxroutinelxsamplelxislxtotallxcoliformlxpositive,lxthelxsystemlxshalllxdolxalllxthelxfollowinglxstepslxexcept:lx-
lxcorrectlxanswers-collectlxthelxrepeatlxsampleslxonlxdifferentlxdays

thelxMORslxforlxpubliclxwaterlxsystemslxshalllxbelxsubmittedlxtolxDERlxwithin:lx-lxcorrectlxanswers-
15lxdayslxafterlxthelxmonthlxoflxoperation
chapterlx17-550lxstateslxthatlxthelxsupplierlxoflxwaterlxshalllxmaintainlxalxminimumlxfreelxchlorinelxresiduallxof:lx-
lxcorrectlxanswers-0.2lxmg/llxorlxitslxequivalentlxthroughoutlxthelxdistributionlxsystemlxatlxalllxtimes.

forlxalxsystemlxwhichlxcollectslxatlxleastlx40lxsampleslxforlxmonth,lxtolxbelxinlxcompliancelxwithlxthelxMCLlxforlxtotallx
coliform,lxnolxmorelxthatlx______lxoflxthelxsampleslxcollectedlxcanlxtestlxpositivelxforlxthelxmonth.lx-
lxcorrectlxanswers-5%lx(orlx2lxsamples)

iflxanylxroutinelxorlxrepeatlxsamplelxislxtotallxcoliformlxpositive,lxthelxsystemlxshalllxanalyzelxthatlxsamplelxfor:lx-
lxcorrectlxanswers-fecallxcoliformlxorlxE.lxcoli

followinglxthelxdisinfectionlxoflxalxnewlylxdevelopedlxwell,lxalx__________lxsurveylxmustlxbelxconducted.lxthelxsu
rveylxrequireslxcollectionlxoflxdailylxsampleslxforlxtotallxcoliformlxforlx20lxorlxmorelxdayslxconsecutive.lx-
lxcorrectlxanswers-bacteriological.

insolublelxorganiclxcolloidlxsystemlxoweslxitlxstabilitylxto:lx-lxcorrectlxanswers-
itslxsmalllxsizelxandlxelectricallxcharge
thelxannularlxspacelxbetweenlxthelxwelllxcasinglxandlxthelxborelxholelxmustlxbelx____________lxtolxpreventlxcont
aminationlxfromlxsurfacelxorlxfromlxpoorlxqualitylxaquiferslxthatlxthelxborelxintersectslxbeforelxreachinglxthelxdesi
redlxaquifer.lx-lxcorrectlxanswers-grouted
thelxflocculationlxprocesslxislx:lx-lxcorrectlxanswers-mechanical
alumlxfloclxcarriedlxoverlxintolxthelxlaunderslxwilllxcause:lx-lxcorrectlxanswers-
shortlxfilterlxrunslxandlxprematurelxfilterlxclogging
tolxstoplxslumlxfloclxfromlxcarryinglxoverlxintolxthelxlaunders:lx-lxcorrectlxanswers-addlxorlxstartlxpolymer
Alxjarlxtestlxindicateslxthatlx80%lxoflxthelxfloclxislxsettlinglxoutlx2lxminuteslxafterlxthelxmixerlxislxturnedlxoff.lxexpect:lx-
lxcorrectlxanswers-floclxtolxprematurelylxsettlelxout

thelxpolymerlxmostlxfrequentlylxfoundlxtolxbelxeffectivelxinlxthelxcollectionlxandlxremovallxoflxparticleslxfromlxwat
erlxislxa:lx-lxcorrectlxanswers-highlxmolecularlxweight,lxcationiclxpolymer
thelxminimumlxfilterlxmonitoringlxfrequencylxforlxturbiditylxeffluentlxis:lx-lxcorrectlxanswers-4lxtimeslxperlxshift
thelxaffectslxoflxfilterlxclogginglxcanlxbelxdeterminedlxby:lx-lxcorrectlxanswers-
unevenlxloading,lxshortlxfilterlxruns,lxandlxpoorlxeffluentlxquality
thelxfollowinglxstatementlxregardinglxcoagulation/flocculationlxislxfalse:lx-lxcorrectlxanswers-
detentionlxislxnotlxcriticallxinlxthelxflocculationlxprocess
insolublelxorganiclxcolloidlxsystemlxoweslxitslxstabilitylxto:lx-lxcorrectlxanswers-itslxelectricallxcharge
thelxcoagulationlxprocesslxislx:lx-lxcorrectlxanswers-physicallxandlxchemical
iflxalumlxfloclxislxbreakinglxuplxinlxthelx3rdlxcompartmentlxoflxalx4lxcompartmentlxflocculatorlxequippedlxwithlxmec
hanicallxflocculators,lxitlxcanlxbelxexpectedlxthat:lx-lxcorrectlxanswers-
floclxwilllxnotlxeasilylxsettle,lxresultinglxinlxcarrylxover.lxtolxcorrectlxissue,lxadjustlxflocculatorlxspeed.
jarlxtestslxindicatelxthatlx90%lxoflxthelxfloclxislxsettlinglxoutlx5lxminuteslxafterlxthelxmixerlxislxturnedlxofflx:lx-
lxcorrectlxanswers-thelxdoselxislxjustlxright

whenlxusedlxaslxalxfilterlxaid,lxpolymerlxoverdosinglxcanlxresultlxinlx:lx-lxcorrectlxanswers-
acceleratedlxheadlxlosslxbuildlxup
alxprimarylxcoagulantlxusedlxonlylxinlxwaterlxsofteninglxprocesslxislx:lx-lxcorrectlxanswers-calciumlxhydroxide
thelxamountlxoflxalkalinitylxinlxthelxsourcelxrawlxwaterlxislxgenerallylxnotlxalxproblemlxunlesslxthelx:lx-
lxcorrectlxanswers-alkalinitylxislxverylxlow.

inlxthelxflocculationlxprocess,lxiflxfloclxislxbreakinglxuplxorlxtearinglxapart,lxthislxmaylxbelxthelxresultlxoflx:lx-
lxcorrectlxanswers-excessivelxmixing

detentionlxtimelxislxusuallylxnotlxalxcriticallxfactorlxinlxthe:lx-lxcorrectlxanswers-coagulationlxorlxflashlxmixlxprocess

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