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CPO Certification Practice Test 2026 | Paraoptometric Exam Questions & Answers PDF

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2025/2026 Written for academic year
Institution CPO - Certified Paraoptometric
Course CPO - Certified Paraoptometric
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Ace your Certified Paraoptometric (CPO) Exam with this targeted practice test PDF. Designed to help candidates practice, assess knowledge, and improve exam readiness. Covers key paraoptometric topics and exam areas Includes practice questions with answers Ideal for self-assessment and exam prep Supports last-minute revision and skill reinforcement This resource is perfect for paraoptometric students and professionals who want to confidently prepare for

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CPO Certification Practice Test
nm nm nm




Younmoperatenmanm120,000nmgallonnmpool,nmandnmuponnmperformingnmyournmh
ourlynmchemicalnmtestsnmyounmobservenmthenmfollowingnmreadings:


TotalnmAvailablenmChlorinenmreadingnmisnm1.6nm
Freenmavailablenmchlorinenmreadingnmisnm1.5nm
pHnmisnm7.4


Yournmsupervisingnmlifeguardnmhasnmjustnminformednmyounmthatnmyounmhavenmh
adnmanmfecalnmincidentnmoccur;nmanmsolidnmstoolnmhasnmbeennmdischargednmintonm
thenmpool.nmAccordingnmtonmthenmCentersnmfornmDiseasenmControl,nmasnmthenmC
PO,nmyounmshouldnmdonmthenmfollowing:


A.nmclearnmthenmpoolnmofnmusersnmandnmboostnmthenmfreenmchlorinenmtonm17nmpp
m
B.nmclearnmthenmpoolnmandnmraisenmthenmfreenmchlorinenmtonm2nmppm
C.nmallownmswimmersnmtonmremainnminnmthenmpool,nmbutnmraisenmthenmfreenmchlo
rinenmtonm10nmppm.nm

D.nmnonenmofnmthenmabovenm-nmcorrectnmanswer✔ ✔
B.nmclearnmthenmpoolnmandnmraisenmthenmfreenmchlorinenmtonm2nmppm

,Assumingnmthatnmyournmlocalnmhealthnmdepartmentnmrequiresnmyounmtonmraisen
mthenmfreenmchlorinenmtonm5nmppm,nmhownmmuch nmsodiumnmhypochloritenmwoul


dnmbenmneedednmtonmraisenmthenmfreenmchlorinenminnmthenmpoolnminnmquestionnm#1
nmtonmthatnmlevel?




A.nm6nmgallonsnm
B.nm3.5nmgallonsnm
C.nm9nmgallonsnm

D.nm35nmgallonsnm-nmcorrectnmanswer✔ ✔ B.nm3.5nmgallons


YounmarenmthenmCPOnmfornmannmindoornmhealthnmclubnmpool.nmThenmfacilitynmm
anagernminformsnmyounmthatnmhenmisnmreceivingnmcomplaintsnmaboutnmanmstron
gnmchlorinenmodornminnmthenmpoolnmarea,nmandnmseveralnmmembersnmhavenmcom
plainednmofnmeyenmirritation.nmThenmmostnmlikelynmcausenmofnmthesenmcomplain
tsnmis:


A.nmtoonmmuchnmfreenmchlorinenminnmthenmwater
B.nmtoonmfewnmswimmersnminnmthenmpool
C.nmhighnmlevelsnmofnmchloraminesnminnmthenmpoolnm

D.nmhighnmcalciumnmlevelsnminnmthenmwaternm-nmcorrectnmanswer✔ ✔
C.nmhighnmlevelsnmofnmchloraminesnminnmthenmpool

, Tonmdeterminenmthenmlevelnmofnmchloraminesnminnmthenmwater,nmyounmshouldnm
donmwhichnmofnmthenmfollowing?


A.nmtestnmfornmfreenmchlorinenmandnmpH,nmthennmdividenmthenmpHnmnumbernmbyn
mthenmfreenmchlorinenmnumber



B.nmtestnmfornmtotalnmchlorinenmandnmfreenmchlorine,nmthennmsubtractnmthenmfreen
mchlorinenmnumbernmfromnmthenmtotalnmchlorinenmnumber



C.nmtestnmfornmtotalnmchlorinenmandnmcombinednmchlorine,nmthennmsubtractnmthe
nmcombined nmchlorinenmnumbernmfromnmthenmfreenmchlorinenmnumber



D.nmtestnmfornmtotalnmalkalinitynmandnmpH,nmthennmmultiplynmthenmtotalnmalkalin
itynmnumbernmbynmthenmpHnmnumbernm-nmcorrectnmanswer✔ ✔
B.nmtestnmfornmtotalnmchlorinenmandnmfreenmchlorine,nmthennmsubtractnmthenmfre
enmchlorinenmnumbernmfromnmthenmtotalnmchlorinenmnumber


Younmoperatenmanm45,000nmgallonnmindoornmpool,nmandnmuponnmdoingnmyournmh
ourlynmchemicalnmtestsnmyounmobservenmthenmfollowingnmreadings:
Totalnmavailablenmchlorinenmisnm2.2nm
Freenmavailablenmchlorinenmisnm1.4nm
pHnmisnm7.6


Whatnmisnmthenmlevelnmofnmchloraminesnminnmthisnmpool?
A.nm3.6nm
B.nm.8nm

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