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
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
