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CPO Practice Exam Review with Verified Answers 100% 2025/2026, Exams of Nursing

Florida International University (FIU)Nursing

This document features a high-quality collection of Certified Pool Operator (CPO) practice exam questions and answers, graded A+ for accuracy and clarity. It includes all major exam topics such as water chemistry, filtration systems, pool safety regulations, equipment maintenance, and calculations. Ideal for thorough exam preparation and achieving top scores on the CPO certification test.

Typology: Exams

2024/2025

Available from 06/15/2025

Nurseexcel
Nurseexcel 🇺🇸

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CPO Practice Exam Review with Verified Answers 100%
1. Whichbtypebofbfilterbrequiresbthebleastbamountbofbwaterbtobclean?
(A) Diatomaceous
(B) Rapidbratebsand
(C) Highbratebsand
(D) Cartridge:b(D)bCartridge
2. Cyanuricbacidb(stabilizer)bprotectsbfreebchlorineb(FC)bagainstbthebeffectsbof:
(A) PathogensblikebCrypto,bGiardia,bandbShigella
(B) HighbTotalbdissolvedbsolids
(C) Ultravioletbraysbfrombthebsun
(D) HighbPH:b(C)bUltravioletbraysbfrombthebsun
3. Anberosionbchemicalbfeederbisbwhatbtypebofbfeeder?
(A) Peristalticbpump
(B) Pistonbpump
(C) Drybchemicalbfeeder
(D) Gasbsystem:b(C)bDrybchemicalbfeeder
4. OSHAbrequiresbaquaticbfacilitiesbtobmaintain:
(A) SafetybDatabSheetsbonlybforbsanitizingbchemicals
(B) Lifeguardbcertifications
(C) Airbtemperaturebrecordings
(D) SDS'sbforballbchemicalsbusedbatbthebfacility:b(D)bSDS'sbforballbchemicalsbusedbatbthebfacilit
y
5. Whenbmechanicalbcoolingbisbusedbonbanbindoorbtherapeuticbpoolbfacility,bthebrecommend
edbASHRAEbfreshbairbexchangebratebshouldbbe:
(A) 2btob4bexchangesbperbhour
(B) 4btob6bexchangesbperbhour
(C) 6btob8bexchangesbperbhour
(D) Asbmanybasbpossible:b(B)b4btob6bexchangesbperbhour
6. Whatbconditionbmandatesbanbimmediatebclosurebofbyourbswimmingbpool?
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CPO Practice Exam Review with Verified Answers 100%

  1. Whichbtypebofbfilterbrequiresbthebleastbamountbofbwaterbtobclean? (A) Diatomaceous (B) Rapidbratebsand (C) Highbratebsand (D) Cartridge:b(D)bCartridge
  2. Cyanuricbacidb(stabilizer)bprotectsbfreebchlorineb(FC)bagainstbthebeffectsbof: (A) PathogensblikebCrypto,bGiardia,bandbShigella (B) HighbTotalbdissolvedbsolids (C) Ultravioletbraysbfrombthebsun (D) HighbPH:b(C)bUltravioletbraysbfrombthebsun
  3. Anberosionbchemicalbfeederbisbwhatbtypebofbfeeder? (A) Peristalticbpump (B) Pistonbpump (C) Drybchemicalbfeeder (D) Gasbsystem:b(C)bDrybchemicalbfeeder
  4. OSHAbrequiresbaquaticbfacilitiesbtobmaintain: (A) SafetybDatabSheetsbonlybforbsanitizingbchemicals (B) Lifeguardbcertifications (C) Airbtemperaturebrecordings (D) SDS'sbforballbchemicalsbusedbatbthebfacility:b(D)bSDS'sbforballbchemicalsbusedbatbthebfacilit y
  5. Whenbmechanicalbcoolingbisbusedbonbanbindoorbtherapeuticbpoolbfacility,bthebrecommend edbASHRAEbfreshbairbexchangebratebshouldbbe: (A) 2 btob 4 bexchangesbperbhour (B) 4 btob 6 bexchangesbperbhour (C) 6 btob 8 bexchangesbperbhour (D) Asbmanybasbpossible:b(B)b 4 btob 6 bexchangesbperbhour
  6. Whatbconditionbmandatesbanbimmediatebclosurebofbyourbswimmingbpool?

2 b/b (A) Lockerbroombisbnotbclean (B) Mainbdrainbnotbvisiblebfrombthebdeck (C) Nobautomaticbfeedersbinstalled (D) Nobunderwaterblightsbinstalled:b(B)bMainbdrainbnotbvisiblebfrombthebdeck

  1. ThebreagentbcommonlybusedbtobtestbPHbis: (A) DPD (B) SodiumbThiosulfate (C) Coolomatic (D) Phenolbred:b(D)bPhenolbred
  2. Whenbshouldbyoubbackwashbhighbratebsandbfiltersbthatbhavebabsinglebpres-bsurebgauge?

4 b/b (C) 18 blbs. (D) 24 blbs.:b(D)b 24 blbs.

  1. WhichbchemicalbisbsuedbtoblowerbthebpHbvaluebofbpoolborbspabwater? (A) Sodiumbbicarbonate (B) Freshbwater (C) Sodiumbbisulfate (D) Calciumbchloride:b(C)bSodiumbbisulfate

5 b/b

  1. Inbabcirculationbsystem,bthebcommonlybacceptedbpracticebisbtobhave: (A) 75%bofbthebwaterbreturnbfrombthebmainbdrain (B) 50%ofbthebwaterbreturnbviabthebmainbdrainbandb50%bfrombthebsurface (C) 10%bofbthebwaterbreturnbviabthebsurfacebandb90%bfrombthebmainbdrain (D) 75%bofbthebwaterbreturnbfrombthebsurface:b(D)b75%bofbthebwaterbreturnbfrombthebsurface
  2. Therebisbabdiarrhealbaccidentbinb206,000bgallonbpool.bAccordingbtobthebCDC,bthebfirstbstep byoubshouldbtakebtobcorrectlybhandlebthisbincidentbis: (A) Removeballbthebswimmersbfrombthebpool (B) Removebthebexcrementbfrombthebpool (C) Backwashbthebfilters (D) addb 20 blbs.bsodiumbbicarbonate:b(A)bRemoveballbthebswimmersbfrombthebpool
  3. Ifbyoubhavebsandbfrombyourbfilterbreturningbtobthebpoolbthroughbthebinlets,bwhatbisbthebli kelybcause? (A) Sandbbedbblocked (B) Brokenbfilterblaterals (C) Blockedbfilterblaterals (D) Toobfrequentbbackwashbcycle:b(B)bBrokenbfilterblaterals
  4. Whichbprocedurebisbusedbtobdeterminebtheblevelbofbcombinedbchlorinebinbwater? (A) TestbforbfreebchlorinebandbpH,bthenbdividebthebpHbnumberbbybthebfreebchlorinebnumber (B) Testbforbtotalbchlorinebandbcombinedbchlorine,bthenbsubtractbthebcombinedbchlorinebnu mberbfrombthebtotalbchlorinebnumber (C) Testbforbfreebchlorinebandbtotalbchlorine,bthenbsubtractbthebfreebchlorinebnumberbfro mbthebtotalbchlorinebnumber (D) TestbforbtotalbalkalinitybandbpH,bthenbmultiplybthebtotalbalkalinitybnumberbbybthebpHbnum ber:b(C)bTestbforbfreebchlorinebandbtotalbchlorine,bthenbsubtractbthebfreebchlorinebnumberbfrombt hebtotalbchlorinebnumber
  5. Youbarebtheboperatorbforbabpoolbwhichbisb 75 bfeetblongbandb 48 bfeetbwide.bThebpoolbbottomb hasbabconstantbslopebwhichbisb 4 bfeetbdeepbatbthebshallowbend,bandb 6 bfeetbdeepbatbthebdeepben d.bWhatbisbthebvolumebofbthisbpoolbinbgallons? (A) 135,000bgallons (B) 125,000bgallons

7 b/b 12 bgallonsbperbminute,bwhatbsizebsandbfilterbwouldbyoubneedbtobreplacebyourbdamagedbfilter? (A) 50 bsq.bft. (B) 36 bsq.bft. (C) 38 bsq.bft. (D) 52 bsq.bft:b(D)b 52 bsq.bft

  1. Whatbisbthebbestbpracticebtobpreventbalgaebgrowth? (A) RaisebthebpH (B) Routinelybbrushbpoolbandbspabwalls (C) Increasebpoolbwaterbtemperature (D) UsebUVbasbabsupplement:b(B)bRoutinelybbrushbpoolbandbspabwalls
  2. Thebpresencebofbgalvanicbcorrosionbinbwaterbisbsignaledbby: (A) Discolorationbofbmetalbpartsbsubmergedbinbwater (B) TDSblevelb1,500bppmbhigherbthanbmake-upbwaterbTDSblevel (C) Saturationbindexblessbthanb-0. (D) Waterbtintedbblue:b(A)bDiscolorationbofbmetalbpartsbsubmergedbinbwater
  3. Ifbtherebisbabdiarrhealbincidentbinbyourbpool,baccordingbtobthebCentersbforbDiseasebCont rolbandbPreventionb(CDC),byoubmustbraisebthebfreebchlorineblevelbtob 20 bppmbandbkeepbitbther ebfor: (A) 12.75bhours (B) 45 bminutes (C) 25.55bhours (D) 17.00bhours:b(A)b12.75bhours
  4. Whichbchemicalbcouldbbebaddedbtoblowerbthebchlorineblevelbinbthebwater? (A) Calciumbchloride (B) Sodiumbthiosulfate (C) Sodiumbsesquicarbonate (D) CyanuricbAcid:b(B)bSodiumbthiosulfate
  5. Atbyourbswimmingbpool,bfailurebtobprovidebthebappropriatebstandardbofbcarebtobthebpublic bcanbleadbtobabcasebof: (A) Negligence (B) Failurebtobmeetbobjectives

8 b/b (C) Performancebevaluation (D) LossbofbCPObcertification:b(A)bNegligence

  1. Tobreducebthebpossibilitybofbsuctionbentrapmentbanboperatorbshould: (A) Usebapprovedbmainbdrainbcovers (B) Installbcheckbvalves (C) Usebabflowbmeter (D) Usebanbautomaticbchemicalbfeeder:b(A)bUsebapprovedbmainbdrainbcovers

10 b/b

  1. Legionnaire'sbdiseasebisbspreadbby: (A) Breathingbcontaminatedbwaterbdroplets (B) Ingestion (C) Directbskinbcontact (D) Contaminatedbwaterbinbthebear:b(A)bBreathingbcontaminatedbwaterbdroplets
  2. Whichbtypebofbfilterbsystembwillbremovebthebsmallestbparticles? (A) Rapidbratebsand

11 b/b (B) Zeolite (C) Highbratebsand (D) Diatomaceousbearth:b(D)bDiatomaceousbearth

  1. Beforebdailybpoolbopening,bwhatbisbthebfirstbareabthatbshouldbbebinspected? (A) Pool/bSpabandbdeck (B) Barriers (C) Pumpbroom (D) Bathhousebandbrestroom:b(A)bPool/bSpabandbdeck
  2. Whichbfilterbmediabwouldbnotbrequirebabdustbmaskbwhenbhandlingbandbstoring? (A) Silicabsand (B) Cartridge (C) Diatomaceousbearth (D) Zeolite:b(B)bCartridge
  3. Youboperatebab50,000bgallonbindoorbpool,bandbyourbchemcialbtestbreadingsbare:btotalbav ailablebchlorinebisb3.0,bandbabfreebavailablebchlroinebisb1.5.bHowbmuchbcalciumbhypochlori tebisbneededbtobreachbbreakpoint? (A) 3.7blbs. (B) 5.6blbs., (C) 8.4blbs. (D) 9.4blbs.:b(C)b8.4blbs.
  4. Whatbisbthebmaximumbspabwaterbtemperaturebtypicallyballowed? (A) 100 bdegreesbF (B) 104 bdegreesbF (C) 98 bdegreesbF (D) 102 bdegreesbF:b(B)b 104 bdegreesbF
  5. Youbreadingsbforbyourbpoolbare:btotalbchlorinebofb1.6;bfreebchlorinebofb1.5;bpHbofb7.4.bAccor dingbtobthebCDC,bwhatbactionbdobyoubtakebifbtherebisbabsolidbstoolbfecalbincident? (A) Clearbthebpoolbofbusersbandbboostbthebchlorinebtob 20 bppmbforb 8 bhours (B) Allowbswimmersbtobremainbinbthebpoolbandbraisebthebfreebchlorinebtob2.0bppm (C) Clearbthebpoolbandbraisebthebfreebchlorinebtob 2 bppmbforb 30 bmins (D) Raisebthebfreebchlorinebtob12.75bppmbforb 1 bhour:b(C)bClearbthebpoolbandbraisebthebfreebchlo

13 b/b (C) 1 btob1.5blbs. (D) 5 btob 10 blbs.:b(C)b 1 btob1.5blbs.

  1. Howbmanybgallonsbofbsodiumbhypochloritebwouldbbebneededbtobraisebthebfreebchlorin eblevelbfromb3.0bppmbtob5.0bppmbinbab75,000bgallonbpool? (A) 6 bgallons (B) 3 bgallons (C) 2 bgallons (D) 1.25bgallons:b(D)b1.25bgallons
  2. WhichbofbthebfollowingbisbNOTbconsideredbtobbebpersonalbprotectivebequip-bment? (A) Liquidbimperviousbgloves (B) Chemicalbgoggles (C) Firebextinguisher (D) Boots:b(C)bFirebextinguisher
  3. Youbarebreceivingbcomplaintsbaboutbabstrongbchlorinebodorbinbthebpoolbarea,bandbseveralbp eoplebhavebcomplainedbofbeyebirritation.bThebmostblikelybcausebis: (A) Highblevelsbofbchloraminesbinbthebwater (B) Toobfewbswimmersbinbthebpool (C) Highbcalciumblevelsbinbthebwater (D) Toobmuchbfreebchlorinebinbthebwater:b(A)bHighblevelsbofbchloraminesbinbthebwater
  4. Thebresultbofbchannelingbinbabsandbfilterbincludes: (A) Waterbleakingbfrombthebfilter (B) Morebparticlesbbeingbremovedbbybthebfilter (C) Thebwaterboverflowingbinbabfilter (D) Unfilteredbwaterbreturningbtobthebpool:b(D)bUnfilteredbwaterbreturningbtobthebpool
  5. Ferrousbammoniumbsulfateb(FAS-DPD)bisbwhatbkindbofbtestbmethod? (A) Colorimetric (B) Turbidimetric (C) Electronic (D) Titrimetric:b(D)bTitrimetric
  6. Whichbisbthebbestbmethodbtobpreventbelectrocution? (A) Usebablockbout/btagboutbdevise

14 b/b (B) Wearbfacebprotection (C) Havebsomeonebturnbthebpowerboffbforbyou (D) Usebmetalbladdersbonly:b(A)bUsebablockbout/btagboutbdevise

  1. Youbarebtheboperatorbofbab100,000bgallonboutdoorbpool.bThebwaterbtestsbgivebyoubthebfoll owingbreadings:btotalbalkalinitybisb 75 bppm,bpHbisb7.6,bcalciumbhardnessbisb 200 bppm,btemper aturebisb 76 bdegreesbF,bandbabtotalbdissolvedbsolids