WATER DISTRIBUTION 1 EXAM QU
33 33 33 33
ESTIONS WITH COMPLETE SOL 33 33 33
UTIONS
Headaisameasuredaina-aans--
feet
Aaplataisa-aans--
Aamap
Whichatypeaofavalveawillapreventatheacollapseaofaaapipea-aans--Air-and-
vaccumeareliefavalve
Theahighestadegreeaofaprotectionaofaaacoatedasteelapipeaisa-aans--
cathodicaprotection
Atawhichatimeaofadayaisatheaageaofatheawaterastoredainatheadistributionasystematheahighest?a-
aans--Inatheamorning
Oneaofachlorinesaadvantagesaisathataita-aans--
hasaaapersistentaresidual
Chlorineagasaisa___________atimesaheavierathanaair.a-
aans--2.5
Afteraaawaterastorageatankahasabeenachlorinated,awhichabacteriologicalatestamustaproveane
gativeabeforeatheatankaisaputabackaintoaservice.a-aans--Coliformatest
Whichaisatheabestaandamostareliableawayaofafindingaaaveryasmallachlorinealeak?a-aans--
Useaaachlorineagasadetectoraandaplaceaitanearaanyaareaasuspectedaofaleaking.
Theaminimumarequiredafreeachlorinearesidualaanywhereainatheadistributionasystemaisa-aans-
-aadetectablealevel
Firstadrawasamplesaforatheaanalysisaofaleadaandacopperawateramustabeacollectedafromatapsa
whereatheawaterahasastoodamotionlessainatheaplumbingaforaataleasta-aans--6ahours
Samplesacollectedaforacloakroomsaareacollectedainaplasticabottlesathatamustacontaina-aans--
Sodiumathiosulfate
Theavolumeaofaaasampleaforacoliformacomplianceaisa-aans--
100aml
Ifaaawaterasampleaisanotaanalyzedaimmediatelyaforachlorinearesidual,aitaisaacceptableatoabeaa
nalyzedawithina-aans--15aminutes
Theaheartaofaaapumpaisacalledathea-aans--
impeller
Whichadeviceaservesatheasameafunctionaasatheapackinga-aans--
Mechanicalaseal
, Whichaisausedatoastopaairaleakageaintoatheacasingaaroundatheapumpashafta-
aans--seals
Whichaisaatatheatopaofaaastuffingabox?a-aans--
Packingagland
Whichaassemblyaholdsathealanternaringaandapacking?a-aans--
Stuffingabox
Whyaisaitaimportantatoamonitoratheaspeedaofaaavariableaspeedapump?a-aans--
Toapreventacavitationafromaoccurring
Whichabasicaelectricalaunitaisausedatoameasureaaamaterialsaoppositionaofaflowaofaelectricity?
a-aans--Ohm
Theafirstaoilachangeaonaaapumpashouldabeadonea-aans--
Afteraaamonthaofaoperation
Howaoftenashouldatheatemperatureaofacentrifugalapumpamotorabearingsabeacheckedawithaaat
hermometer?a-aans--Onceaaamonth
Allasensorsathatarespondatoaliquidapressureawillapreformapoorlyaifa a entersatheaairase
nsora-aans--Air
Whichaagencyasetsalimitsaonatheaconcentrationalevelsaofaharmfulacontaminantsainapotablea
wateradistributedatoacostumers?a-aans--UnitedaStatesaEnvironmentalaProtectionaAgency
Whichaviolationsaareamostaserious?a-aans--
Tiera1
Aapositiveafecalacoliformatestamustabeareportedatoatheaprimacyaagencyawithina24ahoursa-
aans--24ahours
Theanumberaofamonthlyadistributionasystemabacteriologicalasamplesaisarequiredaisa-aans--
basedaonatheapopulationaserved
Whichaisatheaapproximateaangleaofaresponseaforaaverageasoilsawhenausingatheaslopingamet
hodaforatheapreventionaofacaveains?a-aans--1.0a:a1.0
Atawhatatimeaofadayaisatheaageaofatheawaterastoredainaaadistributionasystemathealowest?a-
aans--LateaEvening
Whichatypeaofamapsashouldanotaoverlapaeachaother?a-aans--
Sectionalamaps
Whichaofatheafollowingaisaaajointaforaductileaironapiping?a-aans--
Flexibleaballajoint
Theaamountaofafeetainaenergyarequiredatoaovercomearesistanceatoaflowainaaapipeaisacalleda-
aans--frictionahead
Theafireainsuranceaunderwritersarecommendathatanoamainashouldahaveaaadiameteralessatha
na-aans--6ainches
33 33 33 33
ESTIONS WITH COMPLETE SOL 33 33 33
UTIONS
Headaisameasuredaina-aans--
feet
Aaplataisa-aans--
Aamap
Whichatypeaofavalveawillapreventatheacollapseaofaaapipea-aans--Air-and-
vaccumeareliefavalve
Theahighestadegreeaofaprotectionaofaaacoatedasteelapipeaisa-aans--
cathodicaprotection
Atawhichatimeaofadayaisatheaageaofatheawaterastoredainatheadistributionasystematheahighest?a-
aans--Inatheamorning
Oneaofachlorinesaadvantagesaisathataita-aans--
hasaaapersistentaresidual
Chlorineagasaisa___________atimesaheavierathanaair.a-
aans--2.5
Afteraaawaterastorageatankahasabeenachlorinated,awhichabacteriologicalatestamustaproveane
gativeabeforeatheatankaisaputabackaintoaservice.a-aans--Coliformatest
Whichaisatheabestaandamostareliableawayaofafindingaaaveryasmallachlorinealeak?a-aans--
Useaaachlorineagasadetectoraandaplaceaitanearaanyaareaasuspectedaofaleaking.
Theaminimumarequiredafreeachlorinearesidualaanywhereainatheadistributionasystemaisa-aans-
-aadetectablealevel
Firstadrawasamplesaforatheaanalysisaofaleadaandacopperawateramustabeacollectedafromatapsa
whereatheawaterahasastoodamotionlessainatheaplumbingaforaataleasta-aans--6ahours
Samplesacollectedaforacloakroomsaareacollectedainaplasticabottlesathatamustacontaina-aans--
Sodiumathiosulfate
Theavolumeaofaaasampleaforacoliformacomplianceaisa-aans--
100aml
Ifaaawaterasampleaisanotaanalyzedaimmediatelyaforachlorinearesidual,aitaisaacceptableatoabeaa
nalyzedawithina-aans--15aminutes
Theaheartaofaaapumpaisacalledathea-aans--
impeller
Whichadeviceaservesatheasameafunctionaasatheapackinga-aans--
Mechanicalaseal
, Whichaisausedatoastopaairaleakageaintoatheacasingaaroundatheapumpashafta-
aans--seals
Whichaisaatatheatopaofaaastuffingabox?a-aans--
Packingagland
Whichaassemblyaholdsathealanternaringaandapacking?a-aans--
Stuffingabox
Whyaisaitaimportantatoamonitoratheaspeedaofaaavariableaspeedapump?a-aans--
Toapreventacavitationafromaoccurring
Whichabasicaelectricalaunitaisausedatoameasureaaamaterialsaoppositionaofaflowaofaelectricity?
a-aans--Ohm
Theafirstaoilachangeaonaaapumpashouldabeadonea-aans--
Afteraaamonthaofaoperation
Howaoftenashouldatheatemperatureaofacentrifugalapumpamotorabearingsabeacheckedawithaaat
hermometer?a-aans--Onceaaamonth
Allasensorsathatarespondatoaliquidapressureawillapreformapoorlyaifa a entersatheaairase
nsora-aans--Air
Whichaagencyasetsalimitsaonatheaconcentrationalevelsaofaharmfulacontaminantsainapotablea
wateradistributedatoacostumers?a-aans--UnitedaStatesaEnvironmentalaProtectionaAgency
Whichaviolationsaareamostaserious?a-aans--
Tiera1
Aapositiveafecalacoliformatestamustabeareportedatoatheaprimacyaagencyawithina24ahoursa-
aans--24ahours
Theanumberaofamonthlyadistributionasystemabacteriologicalasamplesaisarequiredaisa-aans--
basedaonatheapopulationaserved
Whichaisatheaapproximateaangleaofaresponseaforaaverageasoilsawhenausingatheaslopingamet
hodaforatheapreventionaofacaveains?a-aans--1.0a:a1.0
Atawhatatimeaofadayaisatheaageaofatheawaterastoredainaaadistributionasystemathealowest?a-
aans--LateaEvening
Whichatypeaofamapsashouldanotaoverlapaeachaother?a-aans--
Sectionalamaps
Whichaofatheafollowingaisaaajointaforaductileaironapiping?a-aans--
Flexibleaballajoint
Theaamountaofafeetainaenergyarequiredatoaovercomearesistanceatoaflowainaaapipeaisacalleda-
aans--frictionahead
Theafireainsuranceaunderwritersarecommendathatanoamainashouldahaveaaadiameteralessatha
na-aans--6ainches
