Pool Operator Exam Questions with correct answers

Pool Operator Exam Questions with correct
answers
whole |range |chlorine |in |a |pool: |____ |to |_____ |- |CORRECT |ANSWER✔✔-1, |5



ideal |range |chlorine |in |a |pool: |____ |to |_____ |- |CORRECT |ANSWER✔✔-2, |4



whole |range |chlorine |in |a |spa: |____ |to |_____ |- |CORRECT |ANSWER✔✔-2, |10



ideal |range |chlorine |in |a |spa: |____ |to |_____ |- |CORRECT |ANSWER✔✔-3, |5



4 |types |of |solid |chlorine |- |CORRECT |ANSWER✔✔-calcium |hypochlorite, |lithium |hypochlorite, |
trichlor, |dichlor



liquid |chlorine |- |CORRECT |ANSWER✔✔-sodium |hypochlorite |(NaOCl)



how |active |is |gas |chlorine |- |CORRECT |ANSWER✔✔-100%



the |active |killing |form |of |chlorine |in |water |- |CORRECT |ANSWER✔✔-hypochlorous |acid |(HOCl)



HOCl |= |______ |- |CORRECT |ANSWER✔✔-H+ |(hydrogen |ion) |+ |OCl- |(hypochlorite |ion)



most |common |granular |chlorine |(pH |range) |- |CORRECT |ANSWER✔✔-calcium |hypochlorite |(8.5
|- |11, |used |to |super |chlorinate |water)




not |common |form |of |chlorine |due |to |low |active |strength |(pH) |- |CORRECT |ANSWER✔✔-lithium
|hypochlorite |(10.8)

, tablet/stick |chlorine |usually |used |in |erosion |feeder |(pH |- |what |will |it |do?) |- |CORRECT |
ANSWER✔✔-trichlor |(2.8 |- |3.5, |lower |alkalinity |and |pH |over |time)



salt |used |as |a |disinfectant |(pH) |- |CORRECT |ANSWER✔✔-dichlor |(6.7 |- |common |in |vinyl |lined |
pools)



most |common |type |of |chlorine |used |(pH) |- |CORRECT |ANSWER✔✔-sodium |hypochlorite |
(NaOCl |- |13)



______ |needs |special |training |to |use |and |has |a |pH |of |____ |and |will |_____ |when |added |to |
water |- |CORRECT |ANSWER✔✔-gas |chlorine, |0, |lower |pH



chlorine |is |most |effective |as |a |pH |of |_____ |- |CORRECT |ANSWER✔✔-7.5



active |disinfectant |in |the |water |- |CORRECT |ANSWER✔✔-free |chlorine |(FC)



FC |is |determined |by |the |______ |test |and |is |maintained |between |____ |and |____ |ppm |- |
CORRECT |ANSWER✔✔-DPD, |2, |4



equal |to |the |amount |of |hypochlorous |acid |(HOCl) |and |the |amt |of |hypochlorite |ions |(OCl-) |- |
CORRECT |ANSWER✔✔-free |chlorine |(fc)



the |result |of |free |chlorine |reacting |with |organic |compounds |- |CORRECT |ANSWER✔✔-combine |
chlorine |(CC)



common |name |and |max |for |pools |and |spas |for |combine |chlorine |- |CORRECT |ANSWER✔✔-
chloramines, |0.2, |0.5