LEVEL 1 WATER DISTRIBUTION PRACTICE TEST WITH COMPLETE SOLUTIONS

LEVEL 1 WATER DISTRIBUTION
PRACTICE TEST WITH COMPLETE
SOLUTIONS
Theaminimumaandamaximumachloridearesidualainaaawateradistributionasystemaisa?a-
aans✔✔0.2amg/laanda4mg/Laofafreeachlorine




aNitrateamayanotaexceedawhataconcentrationawhenatestedayearlyaforaaagroundwateratreatm
entaplanta?a-aans✔✔10amg/L

aTheaminimumanumberaofatotalacoliformasamplesathatamustabeacollectedaperamonthaisabase
daonaWichaofatheafollowinga?a-aans✔✔Theapopulationaservedabyatheasystem

aWhenaaadistributionabacteriologicalasampleaisapositiveaforaaatotalacoliformatheaprocedureai
sa?a-
aans✔✔Repeatatheasampleaandatakeaaasamplea5aconnectionsaupstreamaandadownstreamat

oaconfirmatotalacoliform

aForaleadaandacopperasampleatheawateramustabeaInatheapipelineaforaataleast?a-
aans✔✔6ahours




aWhataisahydraulicagradealinea?a-
aans✔✔Aalineatoawhichatheawateralevelawouldariseainaaasmalla,verticalatube,connectedatoathe

apipe




aHowaoftenashouldacathodicaprotectionaanodesainayourasystemabeainspected?a-
aans✔✔Everyayear




aWaterapipelinesaareagenerallyadesignedatoacarryawateraataaavelocityabelowa?a-
aans✔✔2.5baFPS.aFeetaperasecond




aEnergyauseainawaterasystemsaisadefinedabestabya?a-
aans✔✔Energyauseavariesaamongasystemsaandaanaenergyainventoryastudyawouldaneedatoa

beaconductedatoadeterminearelationships

aTheaminimumarecommendedaseparationadistanceabetweenaaawateramainaandaaastormase
weraisa?a-aans✔✔6afeet

aWhichaofatheafollowingashouldabeainaanaorganizationaplana?a-
aans✔✔Identifiesaclearalinesa,definesatheadivisionsaofalabora,establishesaunityaofacommand

, aIfapipelinesaareanotarestrainedausingasteelarodsaconcreteathrustablocksacanabeausedaata?a-
aans✔✔Everyabendaandatransition




aEngineeringaDrawingsathatashowatheadepthaofapipe,atheapipealocationabothaverticallyaandah
orizontallyaandatheacorrectadistanceaformaaareferenceapointaareaknownaasawhichaofatheafollo
winga-aans✔✔Planaandaprofileadrawings

aWhichaareatheacomponentsaofadirectingastaffa?a-aans✔✔Motivatinga&acommunicating

aTheaaccuracyaofalargeametersashouldafallawithinawhatarangea?a-
aans✔✔Notalessathana97%anotamoreathana103%




aInasomeaolderawaterasystemaleadaservicealineastillaexist.aWhatawouldabeatheabestapracticea
whenafindingaleadapipea?a-aans✔✔Beareplaced

aWhataisatheaacceptablearangeaforawateralossainaaatypicalamunicipaladistributionasystematha
tahasaaavarietyaofapvcaandadiapipea?a-aans✔✔20%a(80%aeffienciency)

aWhataisaaamajoracauseaofaundergroundaconstructionadeathsa?a-
aans✔✔Lackaofashoringaorashoringafailure




aIfatheatdsaisamarginallyatooahighaforatheapumpathealikelyaresultawillabea?a-
aans✔✔Decreaseainaflowarate




aAirareleaseavalvesaareainstalledaatawhatalocationainaaawateralinea?a-
aans✔✔Atahighapointsaof aaapipealine




aTheamaximumapressureaataserviceaconnectionsashouldabealessathana?a-aans✔✔100apsi

aInaselectingaandaEvaluatingaaatank,astorageacapacityamustabeamatcheda_______ofatheasy
stema?a-aans✔✔Peakademand

aAahydraulicagradealineawillaalwaysaslopeainawhatadirectiona?a-
aans✔✔Slopeadownwardainatheadirectionaofatheawateraflow




aWhereadoesatheamajorityaofamicrobialagrowthawithainaaawateradistributionasystemaoccura?a-
aans✔✔Deadaendawateralines




aWellsathataareabiologicallyacontaminatedafromarepeatacoliformaorafecalacoliformamustabeab
acteriologicallyasurveyedaandasampleawhichaisanotacorrecta?a-
aans✔✔Theyamustabeaataleasta12ahoursaapart




aWhenabackfillingaaapipealineahowadeepashouldatheafirstalayeraofabackfillabeacompacteda-
aans✔✔Atatheahorizontalacenterlineaofatheapipe