Certified Pool Operator Handbook Practice Test – 2024 QUESTIONS &
ANSWERS 2024 ( A+ GRADED 100% VERIFIED)
1. fYou foperate fa f120,000-gallon fpool, fand fupon fperforming fyour fhourly fchemical ftests fyou fobserve
fthe ffollowing freadings: fTotal fAvailable fChlorine freading fis f1.6 ffree favailable fchlorine freading fis f1.5
fpH fis f7.4 fYour fsupervising flifeguard fhas fjust finformed fyou fthat fyou fhave fhad fa ffecal fincident
foccur; fa fsolid fstool fhas fbeen fdischarged finto fthe fpool. fAccording fto fthe fCenters ffor fDisease
fControl, fas fthe fCPO, fyou fshould fdo fthe ffollowing: f- fCorrect f fAnswer f- fclear fthe fpool fand fraise fthe
ffree fchlorine fto f2 fppm
2. fAssuming fthat fyour flocal fhealth fdepartment frequires fyou fto fraise fthe ffree fchlorine fto f5 fppm,
fhow fmuch fsodium fhypochlorite fwould fbe fneeded fto fraise fthe ffree fchlorine fin fthe fpool fin
fquestion f#1 fto fthat flevel? f- fCorrect f fAnswer f- f3.5 fgallons
3. fYou fare fthe fCPO ffor fan findoor fhealth fclub fpool. fThe ffacility fmanager finforms fyou fthat fhe fis
freceiving fcomplaints fabout fa fstrong fchlorine fodor fin fthe fpool farea, fand fseveral fmembers fhave
fcomplained fof feye firritation. fThe fmost flikely fcause fof fthese fcomplaints fis: f- fCorrect f fAnswer f- fhigh
flevels fof fchloramines fin fthe fpool
4. fTo fdetermine fthe flevel fof fchloramines fin fthe fwater, fyou fshould fdo fwhich fof fthe ffollowing? f-
fCorrect f fAnswer f- ftest ffor ftotal fchlorine fand ffree fchlorine, fthen fsubtract fthe ffree fchlorine fnumber
ffrom fthe ftotal fchlorine
5. fYou foperate fa f45,000 fgallon findoor fpool, fand fupon fdoing fyour fhourly fchemical ftests fyou
fobserve fthe ffollowing freadings:Total favailable fchlorine fis f2.2 fFree favailable fchlorine fis f1.4 fand fpH
fis f7.6 fWhat fis fthe flevel fof fchloramines fin fthis fpool? f- fCorrect f fAnswer f- f0.8
7. fYou fare fthe foperator fof fa f330,000 fgallon foutdoor fpool. fYour flocal fhealth fdepartment frequires
fyou fto fperform fa fwater fbalance fcalculation fonce fmonthly. fUpon fperforming fthe fwater ftests
fnecessary fto fperform fthis fcalculation, fyou fobserve fthe ffollowing freadings fin fyour fpool: fTotal
falkalinity fis f50 fppm fpH fis f7.2 fCalcium fHardness fis f150 fppm fTemperature fis f76 fdegrees fF fTotal
fDissolved fSolids fis f500 fppm fUsing fthese freadings, fwhat fis fthe fSaturation fIndex ffor fthis fpool? f-
fCorrect f fAnswer f- f-0.8
8. fTo fadjust fthe ftested fTotal fAlkalinity fin fthe fpool fin fquestion f#7 fto fan facceptable flevel, fwhich
fchemical fwould fbe fmost fappropriate? f- fCorrect f fAnswer f- fSodium fBicarbonate
, 9. fTo fadjust fthe ftested fpH fin fthe fpool fin fquestion f#7 fto fan facceptable flevel, fwhich fchemical fwould
fbe fmost fappropriate? f- fCorrect f fAnswer f- fSodium fCarbonate
10. fYou fare fthe fCPO ffor fa f28,000 fgallon fhotel fpool. fYou fperform fa fwater fbalance fchemical ftest,
fand fto fyour fsurprise, fthe fCalcium fHardness fis fonly f100 fppm. fHow fmuch fcalcium fchloride f(77%)
fwould fbe frequired fto fincrease fthis fto f400 fppm?" f- fCorrect f fAnswer f- f100.8 flbs.
11. fYou fare fthe fCPO ffor fa f100 ffoot flong, f50 ffoot fwide fcountry fclub fpool. fThe faverage fdepth fof
fthis fpool fis f7 ffeet. fYou freturn fto fthe fpool fon fMonday fmorning, fafter fa frare fweekend foff, fand ffind
fthat fthe fauto-fill ffeature fhas ffailed fto fwork, fand fthe fpool fwater flevel fis ffour finches ftoo flow. fHow
fmany fgallons fof fwater fmust fbe fadded fto freturn fthe fwater fto fthe fproper flevel? f- fCorrect f fAnswer
f- f12,495 fgallons
12. fYou fare fthe foperator fof fa f3,000 fgallon fhealth fclub fspa, fwhich fhas fan faverage fof f100 fusers fper
fday. fAccording fto fthe fCPO fHandbook, fhow foften fshould fthe fwater fin fthis fspa fbe fchanged? f-
fCorrect f fAnswer f- f10 fdays
"13. fYou fare fthe fCPO ffor fa flarge fmunicipal fswimming fpool. fThis fpool fhas fa fvolume fof f560,000
fgallons fof fwater,and fhas fan faverage fdaily fbather fload fof f1300 fpeople. fThe fpool fis foperated fusing
fhigh frate fpressure fsand ffilters. fHow foften fshould fyou fbackwash fthe ffilters?" f- fCorrect f fAnswer f-
fWhen fthe finfluent fand feffluent fgauges fare f10 fto f20 fpsi fapart
14. fIn ftesting ffor fChlorine/Bromine fin fa fcommercial fpool, fDPD fis fpreferred fover fOTO fbecause: f-
fCorrect f fAnswer f- fOTO fonly ftests ffor fTotal fChlorine
15. fSafety fand frescue fequipment fshould falways fbe: f- fCorrect f fAnswer f- fKept feasily faccessible
faround fthe fpool
16. fWhich ftype fof ffilter fsystem fwill fremove fthe fsmallest fmicron fparticles? f- fCorrect f fAnswer f-
fdiatomaceous fearth
17. fIf fthe fpump ffails fto fprime, fwhich fof fthe ffollowing fdoes fnot fhave fto fbe fchecked? f- fCorrect f
fAnswer f- ffilter fsystem fpressure fis ftoo fhigh
18. fOxidation fReduction fPotential ftesting f(ORP) fis fmeasured fin? f- fCorrect f fAnswer f- fmV
19. fHigh fcalcium fhardness fcan fresult fin fwhat fcondition? f- fCorrect f fAnswer f- fcloudy fwater
20. fHead ffirst fentry fdives fare: f- fCorrect f fAnswer f- fonly fallowed fin fareas fof fthe fpool fthat fare fnot
fmarked fas f'NO fDIVING'
21. fOpening fand fclosing fchecklists: f- fCorrect f fAnswer f- fall fof fthe fabove
22. fYou fcan fbecome fsick ffrom fingesting fwater finfected fwith fLegionella fbacteria f- fCorrect f fAnswer f-
ffalse
ANSWERS 2024 ( A+ GRADED 100% VERIFIED)
1. fYou foperate fa f120,000-gallon fpool, fand fupon fperforming fyour fhourly fchemical ftests fyou fobserve
fthe ffollowing freadings: fTotal fAvailable fChlorine freading fis f1.6 ffree favailable fchlorine freading fis f1.5
fpH fis f7.4 fYour fsupervising flifeguard fhas fjust finformed fyou fthat fyou fhave fhad fa ffecal fincident
foccur; fa fsolid fstool fhas fbeen fdischarged finto fthe fpool. fAccording fto fthe fCenters ffor fDisease
fControl, fas fthe fCPO, fyou fshould fdo fthe ffollowing: f- fCorrect f fAnswer f- fclear fthe fpool fand fraise fthe
ffree fchlorine fto f2 fppm
2. fAssuming fthat fyour flocal fhealth fdepartment frequires fyou fto fraise fthe ffree fchlorine fto f5 fppm,
fhow fmuch fsodium fhypochlorite fwould fbe fneeded fto fraise fthe ffree fchlorine fin fthe fpool fin
fquestion f#1 fto fthat flevel? f- fCorrect f fAnswer f- f3.5 fgallons
3. fYou fare fthe fCPO ffor fan findoor fhealth fclub fpool. fThe ffacility fmanager finforms fyou fthat fhe fis
freceiving fcomplaints fabout fa fstrong fchlorine fodor fin fthe fpool farea, fand fseveral fmembers fhave
fcomplained fof feye firritation. fThe fmost flikely fcause fof fthese fcomplaints fis: f- fCorrect f fAnswer f- fhigh
flevels fof fchloramines fin fthe fpool
4. fTo fdetermine fthe flevel fof fchloramines fin fthe fwater, fyou fshould fdo fwhich fof fthe ffollowing? f-
fCorrect f fAnswer f- ftest ffor ftotal fchlorine fand ffree fchlorine, fthen fsubtract fthe ffree fchlorine fnumber
ffrom fthe ftotal fchlorine
5. fYou foperate fa f45,000 fgallon findoor fpool, fand fupon fdoing fyour fhourly fchemical ftests fyou
fobserve fthe ffollowing freadings:Total favailable fchlorine fis f2.2 fFree favailable fchlorine fis f1.4 fand fpH
fis f7.6 fWhat fis fthe flevel fof fchloramines fin fthis fpool? f- fCorrect f fAnswer f- f0.8
7. fYou fare fthe foperator fof fa f330,000 fgallon foutdoor fpool. fYour flocal fhealth fdepartment frequires
fyou fto fperform fa fwater fbalance fcalculation fonce fmonthly. fUpon fperforming fthe fwater ftests
fnecessary fto fperform fthis fcalculation, fyou fobserve fthe ffollowing freadings fin fyour fpool: fTotal
falkalinity fis f50 fppm fpH fis f7.2 fCalcium fHardness fis f150 fppm fTemperature fis f76 fdegrees fF fTotal
fDissolved fSolids fis f500 fppm fUsing fthese freadings, fwhat fis fthe fSaturation fIndex ffor fthis fpool? f-
fCorrect f fAnswer f- f-0.8
8. fTo fadjust fthe ftested fTotal fAlkalinity fin fthe fpool fin fquestion f#7 fto fan facceptable flevel, fwhich
fchemical fwould fbe fmost fappropriate? f- fCorrect f fAnswer f- fSodium fBicarbonate
, 9. fTo fadjust fthe ftested fpH fin fthe fpool fin fquestion f#7 fto fan facceptable flevel, fwhich fchemical fwould
fbe fmost fappropriate? f- fCorrect f fAnswer f- fSodium fCarbonate
10. fYou fare fthe fCPO ffor fa f28,000 fgallon fhotel fpool. fYou fperform fa fwater fbalance fchemical ftest,
fand fto fyour fsurprise, fthe fCalcium fHardness fis fonly f100 fppm. fHow fmuch fcalcium fchloride f(77%)
fwould fbe frequired fto fincrease fthis fto f400 fppm?" f- fCorrect f fAnswer f- f100.8 flbs.
11. fYou fare fthe fCPO ffor fa f100 ffoot flong, f50 ffoot fwide fcountry fclub fpool. fThe faverage fdepth fof
fthis fpool fis f7 ffeet. fYou freturn fto fthe fpool fon fMonday fmorning, fafter fa frare fweekend foff, fand ffind
fthat fthe fauto-fill ffeature fhas ffailed fto fwork, fand fthe fpool fwater flevel fis ffour finches ftoo flow. fHow
fmany fgallons fof fwater fmust fbe fadded fto freturn fthe fwater fto fthe fproper flevel? f- fCorrect f fAnswer
f- f12,495 fgallons
12. fYou fare fthe foperator fof fa f3,000 fgallon fhealth fclub fspa, fwhich fhas fan faverage fof f100 fusers fper
fday. fAccording fto fthe fCPO fHandbook, fhow foften fshould fthe fwater fin fthis fspa fbe fchanged? f-
fCorrect f fAnswer f- f10 fdays
"13. fYou fare fthe fCPO ffor fa flarge fmunicipal fswimming fpool. fThis fpool fhas fa fvolume fof f560,000
fgallons fof fwater,and fhas fan faverage fdaily fbather fload fof f1300 fpeople. fThe fpool fis foperated fusing
fhigh frate fpressure fsand ffilters. fHow foften fshould fyou fbackwash fthe ffilters?" f- fCorrect f fAnswer f-
fWhen fthe finfluent fand feffluent fgauges fare f10 fto f20 fpsi fapart
14. fIn ftesting ffor fChlorine/Bromine fin fa fcommercial fpool, fDPD fis fpreferred fover fOTO fbecause: f-
fCorrect f fAnswer f- fOTO fonly ftests ffor fTotal fChlorine
15. fSafety fand frescue fequipment fshould falways fbe: f- fCorrect f fAnswer f- fKept feasily faccessible
faround fthe fpool
16. fWhich ftype fof ffilter fsystem fwill fremove fthe fsmallest fmicron fparticles? f- fCorrect f fAnswer f-
fdiatomaceous fearth
17. fIf fthe fpump ffails fto fprime, fwhich fof fthe ffollowing fdoes fnot fhave fto fbe fchecked? f- fCorrect f
fAnswer f- ffilter fsystem fpressure fis ftoo fhigh
18. fOxidation fReduction fPotential ftesting f(ORP) fis fmeasured fin? f- fCorrect f fAnswer f- fmV
19. fHigh fcalcium fhardness fcan fresult fin fwhat fcondition? f- fCorrect f fAnswer f- fcloudy fwater
20. fHead ffirst fentry fdives fare: f- fCorrect f fAnswer f- fonly fallowed fin fareas fof fthe fpool fthat fare fnot
fmarked fas f'NO fDIVING'
21. fOpening fand fclosing fchecklists: f- fCorrect f fAnswer f- fall fof fthe fabove
22. fYou fcan fbecome fsick ffrom fingesting fwater finfected fwith fLegionella fbacteria f- fCorrect f fAnswer f-
ffalse
