CPO Practice questions and answers well illustrated.

CPO Practice questions and answers well illustrated. Which ytype yof yfilter yrequires ythe yleast yamount yof ywater yto yclean? (A) yDiatomaceous y (B) yRapid yrate ysand (C) yHigh yrate ysand (D) yCartridge y- y ycorrect yanswer. y y y(D) yCartridge Cyanuric yacid y(stabilizer) yprotects yfree ychlorine y(FC) yagainst ythe yeffects yof: (A) yPathogens ylike yCrypto, yGiardia, yand yShigella (B) yHigh yTotal ydissolved ysolids (C) yUltraviolet yrays yfrom ythe ysun (D) yHigh yPH y- y ycorrect yanswer. y y y(C) yUltraviolet yrays yfrom ythe ysun An yerosion ychemical yfeeder yis ywhat ytype yof yfeeder? (A) yPeristaltic ypump (B) yPiston ypump (C) yDry ychemical yfeeder (D) yGas ysystem y- y ycorrect yanswer. y y y(C) yDry ychemical yfeeder OSHA yrequires yaquatic yfacilities yto ymaintain: (A) ySafety yData ySheets yonly yfor ysanitizing ychemicals y (B) yLifeguard ycertifications (C) yAir ytemperature yrecordings (D) ySDS's yfor yall ychemicals yused yat ythe yfacility y- y ycorrect yanswer. y y y(D) ySDS's yfor yall ychemicals yused yat ythe yfacility When ymechanical ycooling yis yused yon yan yindoor ytherapeutic ypool yfacility, ythe yrecommended yASHRAE yfresh yair yexchange yrate yshould ybe: (A) y2 yto y4 yexchanges yper yhour (B) y4 yto y6 yexchanges yper yhour (C) y6 yto y8 yexchanges yper yhour (D) yAs ymany yas ypossible y- y ycorrect yanswer. y y y(B) y4 yto y6 yexchanges yper yhour What ycondition ymandates yan yimmediate yclosure yof yyour yswimming ypool? (A) yLocker yroom yis ynot yclean (B) yMain ydrain ynot yvisible yfrom ythe ydeck (C) yNo yautomatic yfeeders yinstalled (D) yNo yunderwater ylights yinstalled y- y ycorrect yanswer. y y y(B) yMain ydrain ynot yvisible yfrom ythe ydeck The yreagent ycommonly yused yto ytest yPH yis: (A) yDPD (B) ySodium yThiosulfate (C) yCoolomatic (D) yPhenol yred y- y ycorrect yanswer. y y y(D) yPhenol yred When yshould yyou ybackwash yhigh yrate ysand yfilters ythat yhave ya ysingle ypressure ygauge? (A) yAfter yan y8 yto y10 ypsi yincrease yabove ystarting ypressure (B) yEvery y2 ydays (C) yOnce yper yweek (D) yWhen ythe yinfluent yand yeffluent ygauges yare y10 yto y20 ypsi yapart y- y ycorrect yanswer. y y y(A) yAfter yan y8 yto y10 ypsi yincrease yabove ystarting ypressure Oxidation yReduction yPotential ytesting y(ORP) yis ymeasured yin: (A) yParts yper ymillion y(ppm) y (B) yMillivolts y(mV) (C) yGallons yper yminute y(gpm) (D) yFree yavailable ychlorine y(FAC) y- y ycorrect yanswer. y y y(B) yMillivolts y(mV) How ymuch ysodium ythiosulfate ywould yyou yneed yto ylower ythe yfree ychlorine yfrom y18 yppm yto y2.0 yppm yin ya y150,000 ygallon ypool? (A) y35 ylbs. (B) y30 ylbs. (C) y25 ylbs. (D) y39 ylbs. y- y ycorrect yanswer. y y y(D) y39 ylbs. Evaporation yheat ylosses yfrom ya ypool yare yhighest yunder ywhich yenvironmental ycondition? (A) yHigh yrelative yhumidity (B) yLow yrelative yhumidity (C) yClear ysky (D) yLow ybarometric ypressure y- y ycorrect yanswer. y y y(B) yLow yrelative yhumidity The ydaily yopening ychecklist yshould ybe yused yto: (A) yCheck ythe ydesign yof ythe yfacility (B) yEnsure yall ysafety yequipment yis yin yplace (C) yCheck ythat yall yground ywires yare yproperly yconnected (D) yEnsure ythe yheater yis yproperly ysized y- y ycorrect yanswer. y y y(B) yEnsure yall ysafety yequipment yis yin yplace You yhave ya y25,000 ygallon yhotel ypool ywith ya ycalcium yhardness ylevel yof y170 yppm. yHow ymuch ycalcium ychloride y(77%) ywould ybe yrequired yto yincrease ythis yto y250 yppm? (A) y20 ylbs. (B) y25 ylbs. (C) y18 ylbs. y (D) y24 ylbs. y- y ycorrect yanswer. y y y(D) y24 ylbs. Which ychemical yis ysued yto ylower ythe ypH yvalue yof ypool yor yspa ywater? (A) ySodium ybicarbonate (B) yFresh ywater (C) ySodium ybisulfate (D) yCalcium ychloride y- y ycorrect yanswer. y y y(C) ySodium ybisulfate In ya ycirculation ysystem, ythe ycommonly yaccepted ypractice yis yto yhave: (A) y75% yof ythe ywater yreturn yfrom ythe ymain ydrain (B) y50%of ythe ywater yreturn yvia ythe ymain ydrain yand y50% yfrom ythe ysurface (C) y10% yof ythe ywater yreturn yvia ythe ysurface yand y90% yfrom ythe ymain ydrain (D) y75% yof ythe ywater yreturn yfrom ythe ysurface y- y ycorrect yanswer. y y y(D) y75% yof ythe ywater yreturn yfrom ythe ysurface There yis ya ydiarrheal yaccident yin y206,000 ygallon ypool. yAccording yto ythe yCDC, ythe yfirst ystep yyou yshould ytake yto ycorrectly yhandle ythis yincident yis: (A) yRemove yall ythe yswimmers yfrom ythe ypool (B) yRemove ythe yexcrement yfrom ythe ypool (C) yBackwash ythe yfilters (D) yadd y20 ylbs. ysodium ybicarbonate y- y ycorrect yanswer. y y y(A) yRemove yall ythe yswimmers yfrom ythe ypool If yyou yhave ysand yfrom yyour yfilter yreturning yto ythe ypool ythrough ythe yinlets, ywhat yis ythe ylikely ycause? (A) ySand ybed yblocked (B) yBroken yfilter ylaterals (C) yBlocked yfilter ylaterals (D) yToo yfrequent ybackwash ycycle y- y ycorrect yanswer. y y y(B) yBroken yfilter ylaterals Which yprocedure yis yused yto ydetermine ythe ylevel yof ycombined ychlorine yin ywater? (A) yTest yfor yfree ychlorine yand ypH, ythen ydivide ythe ypH ynumber yby ythe yfree ychlorine ynumber (B) yTest yfor ytotal ychlorine yand ycombined ychlorine, ythen ysubtract ythe ycombined ychlorine ynumber yfrom ythe ytotal ychlorine ynumber (C) yTest yfor yfree ychlorine yand ytotal ychlorine, ythen ysubtract ythe yfree ychlorine ynumber yfrom ythe ytotal ychlorine ynumber (D) yTest yfor ytotal yalkalinity yand ypH, ythen ymultiply ythe ytotal yalkalinity ynumber yby ythe ypH ynumber y- y ycorrect yanswer. y y y(C) yTest yfor yfree ychlorine yand ytotal ychlorine, ythen ysubtract ythe yfree ychlorine ynumber yfrom ythe ytotal ychlorine ynumber You yare ythe yoperator yfor ya ypool ywhich yis y75 yfeet ylong yand y48 yfeet ywide. yThe ypool ybottom yhas ya yconstant yslope ywhich yis y4 yfeet ydeep yat ythe yshallow yend, yand y6 yfeet ydeep yat ythe ydeep yend. yWhat yis ythe yvolume yof ythis ypool yin ygallons? (A) y135,000 ygallons (B) y125,000 ygallons (C) y145,000 ygallons (D) y140,000 ygallons y- y ycorrect yanswer. y y y(A) y135,000 ygallons You yoperate ya ypool ywhich yuses yhigh yrate ysand yfilters. yYou ydiscover ythat yyour yfilter ytank yhas ydeveloped ya ymajor yleak yand ymust ybe yreplaced. yYour ypool yoperates ywith ya yflow yrate yof y625 ygmp. yUsing ya yfilter ymedia yt=rate y(fmr) yof y12 ygallons yper yminute, ywhat ysize ysand yfilter ywould yyou yneed yto yreplace yyour ydamaged yfilter? (A) y50 ysq. yft. (B) y36 ysq. yft. (C) y38 ysq. yft. (D) y52 ysq. yft y- y ycorrect yanswer. y y y(D) y52 ysq. yft What yis ythe ybest ypractice yto yprevent yalgae ygrowth? (A) yRaise ythe ypH (B) yRoutinely ybrush ypool yand yspa ywalls (C) yIncrease ypool ywater ytemperature (D) yUse yUV yas ya ysupplement y- y ycorrect yanswer. y y y(B) yRoutinely ybrush ypool yand yspa ywalls The ypresence yof ygalvanic ycorrosion yin ywater yis ysignaled yby: (A) yDiscoloration yof ymetal yparts ysubmerged yin ywater (B) yTDS ylevel y1,500 yppm yhigher ythan ymake-up ywater yTDS ylevel (C) ySaturation yindex yless ythan y-0.3 (D) yWater ytinted yblue y- y ycorrect yanswer. y y y(A) yDiscoloration yof ymetal yparts ysubmerged yin ywater If ythere yis ya ydiarrheal yincident yin yyour ypool, yaccording yto ythe yCenters yfor yDisease yControl yand yPrevention y(CDC), yyou ymust yraise ythe yfree ychlorine ylevel yto y20 yppm yand ykeep yit ythere yfor: (A) y12.75 yhours (B) y45 yminutes (C) y25.55 yhours (D) y17.00 yhours y- y ycorrect yanswer. y y y(A) y12.75 yhours Which ychemical ycould ybe yadded yto ylower ythe ychlorine ylevel yin ythe ywater? y (A) yCalcium ychloride (B) ySodium ythiosulfate (C) ySodium ysesquicarbonate (D) yCyanuric yAcid y- y ycorrect yanswer. y y y(B) ySodium ythiosulfate At yyour yswimming ypool, yfailure yto yprovide ythe yappropriate ystandard yof ycare yto ythe ypublic ycan ylead yto ya ycase yof: (A) yNegligence (B) yFailure yto ymeet yobjectives (C) yPerformance yevaluation (D) yLoss yof yCPO ycertification y- y ycorrect yanswer. y y y(A) yNegligence To yreduce ythe ypossibility yof ysuction yentrapment yan yoperator yshould: (A) yUse yapproved ymain ydrain ycovers (B) yInstall ycheck yvalves (C) yUse ya yflow ymeter (D) yUse yan yautomatic ychemical yfeeder y- y ycorrect yanswer. y y y(A) yUse yapproved ymain ydrain ycovers Cloudy yor ymurky ygreen-tinted ypool ywater yis yusually yan yindication yof: (A) yAn yalgae yproblem (B) yDye yin ywater (C) yThe ypresence yof yiron (D) yScale y- y ycorrect yanswer. y y y(A) yAn yalgae yproblem The yvacuum ygauge yis yinstalled: (A) yAfter ythe ypump ybut ybefore ythe yfilter (B) yAfter ythe yfilter yand ythe yheater (C) yIn ythe yreturn yline yafter yall yof ythe yequipment (D) yBefore ythe ypump y- y ycorrect yanswer. y y y(D) yBefore ythe ypump Which ychlorine ytype ytends yto ylower ythe ypH ylevel yin ythe ywater? (A) yLithium yhypochlorite (B) yCalcium yhypochlorite (C) ySodium yhypochlorite (D) yTrichlor y- y ycorrect yanswer. y y y(D) yTrichlor To ybe yclassified yas ya ydisinfectant, ya ychemical ymust ykill yor yinactivate y99.99% yof ycontaminates yand: (A) yMaintain yproper ywater ybalance (B) yBe ybiodegradable (C) yLeave ya ymeasurable yresidual yin ythe ywater (D) yHave ya ysweet ysmelling yaroma y- y ycorrect yanswer. y y y(C) yLeave ya ymeasurable yresidual yin ythe ywater What yis ythe ylikely yresult yif ythe yalkalinity yof ythe ypool ywater yis ygreater ythan y180 yppm? (A) yEtching yof ypool ysurface (B) ypH ybounce (C) ypH ylock (D) yCorrosion yof ymetals y- y ycorrect yanswer. y y y(C) ypH ylock