CWEA COLLECTIONS GRADE 2 PRACTICE TEST QUESTIONS WITH CORRECT ANSWERS 2025

CWEA COLLECTIONS GRADE 2
PRACTICE TEST QUESTIONS WITH
CORRECT ANSWERS 2025/2026
Whyaareagasolineaandavolatileasolventsaobjectionableawhenapresentainaaasewer?a-
acorrectaanswersTheyaproduceaanaexplosionahazard



Youashouldaneveraattemptatoainstall,atroubleshoot,amaintain,arepair,aorareplaceaelectricalaequip
mentaunless:a-
acorrectaanswersYouaknowawhatayouaareadoing,aareaqualified,aandaareaauthorized.



Howamanyadifferentaareasaofatrafficazonesaareathereawhenaworkingainaroadways?a-
acorrectaanswersFive



Whyashouldahydrogenasulfideabeacontrolled?a-
acorrectaanswersToaprotectasewersaandastructuresafromacorrosion



PersonnelaenteringaaaPermitaRequiredaConfinedaSpaceamustahaveatheafollowingatraining:a-
acorrectaanswersEntryaandarescueaprocedures



Toafindaproperaprotectiveagearabeforeaapplicationaofaaaproduct,ayouawould:a-
acorrectaanswersLookaatatheaMSDSa(MaterialaSafetyaDataaSheet)



Theagasamostacommonlyaassociatedawithasepticawastewaterais:a-
acorrectaanswersHydrogenaSulfidea(H2S)



Thealackaofaanaunpleasantaodorainaaastructureadoesanotaalwaysameanathatadangerousagasesaarea
notapresentabecause:a-acorrectaanswersSomeadangerousagasesahaveanoaodor

Whatafouraconditionsaareanecessaryatoacreateaanaexplosion?a-
acorrectaanswersCombustibleagas,aadequateaoxygen,asufficientaheat,aandaproperamixingaofagasa


andaoxygen.

Whatadoesa"transitionaarea"ameanainatrafficacontrol?a-
acorrectaanswersMovesatrafficaoutaofaitsanormalapath



Theaterma"transitionaarea"aisaoneacomponentaofaa:a-acorrectaanswersTrafficaControlaZone

WhataelementsashouldabeaconsideredatoaimproveaworkerasafetyainaHighaSpeedaTemporaryaTraff
icaControlaZones?a-
acorrectaanswersReroutingatrafficaaroundatheaworkasite,apositioningaofalawaenforcementaofficer


sainatheatemporaryatrafficacontrolazone,aandaworkazoneatraining.

WhatakeyafactorsawouldayouaneedatoaaddressawhenadevelopingaanaS.O.P.aforaLiftaStationafailure
?a-acorrectaanswersTrafficacontrolaplan,aby-passaconnections,aandaspillacontainment.

"SpringaBlades"aareaaatypeaofatoolausedawith:a-acorrectaanswersPoweraRodder

, Porcupine,aRootaSaw,aandaaaSquareaBaraCorkaScrewaareaallatoolsausedafor:a-
acorrectaanswersSewerarodding



WhatatoolawouldayouauseatoacutaVCPapipe?a-acorrectaanswersChainapipeacutter

Whichaconditionsashouldaaagasadetectionadeviceatestafor?a-
acorrectaanswersHydrogenaSulfide,aexplosive/flammableagases,aoxygen.



Whatadoesa"LEL"ameanaonaaagasadetectionameter?a-acorrectaanswersLoweraexplosivealimit

Theaoxygenalevelaalarmainaaagasadetectionameteraisanormallyasetatoagoaoffaataoxygenalevelsabelo
w:a-acorrectaanswers19.5%

WhenadevelopingaanaS.O.P.aforascheduledamaintenanceaofaelectricalaequipment,awhataprogra
mashouldabeaaddressedaasaaaprimaryasafetyaguideline?a-
acorrectaanswersTheaL.O.T.O.a(LockaOutaTagaOut)aProgram



WhatadocumentawouldayouarequireatoabeareferencedawhenadevelopingaanaS.O.P.aforahazardous
asubstanceaspillacleanupaasawellaasaspillacontainment?a-acorrectaanswersM.S.D.S.



PlacementaofatheaBloweraandaP.P.E.aareatwoathingsayouawouldaincludeainadevelopingaanaS.O.P.af
oraairamonitoringainaa:a-acorrectaanswersPermitaRequiredaConfinedaSpace

AccordingatoaaaStateaWateraResourcesaControlaBoardaorder,aeachaEnrolleeamustadevelopaandai
mplementaaasystem-specific:a-acorrectaanswersSeweraSystemaManagementaPlana(SSMP)

Categorya1aSSO'sathatadischargeatoaaadrainageachannelaand/orasurfaceawateramustabeareported
awithin:a-acorrectaanswers2ahours



ToareportainatheaStatewideaSSOaData-
baseaCaliforniaaIntegratedaWateraQualityaSystema(CIWQS),aregardingathealocationaofaaaCategor
ya2aSSO,ayouamustaknow:a-acorrectaanswerstheaGPSacoordinates

Biologicalaactivityainalong,asluggish-
flow,aflatagradeaseweralinesawillalikelyacauseaodors,atrueaorafalse?a-acorrectaanswersTrue

Flatteraseweralineagradesamayacauseaaddedaseweramaintenanceaexpenseaandaodoranuisance.aT
heaproblemaisamostalikelyacausedaby:a-
acorrectaanswersAadecreaseainavelocityaallowingaorganicaandainorganicasolidsatoasettleaout



Infiltrationafromaaahighawateratableacanabeaoneasourceaofaexcessiveaclearawaterainaaacollectionas
ystem,atrueaorafalse?a-acorrectaanswersTrue

Whataisatheafirstathingatoaconsiderawhenaselectingaaasolutionatoaclearaaastoppageainaaasewer?a-
acorrectaanswersCauseaofastoppage



Theainterioraofa300afeetaofa12-
inchapipeaisauniformlyacoatedawithaoneainchaofagrease.aHowamanyagallonsawillathisapipeaholdaw