Exam (elaborations)
Pool Operator Exam 2023/2024 already graded A+
- Course
- Institution
Pool Operator Exam 2023/2024 already graded A+
[Show more]
Content preview
Pool Operator Examwhole range chlorine in a pool: ____ to _____ - ANS1, 5
ideal range chlorine in a pool: ____ to _____ - ANS2, 4
whole range chlorine in a spa: ____ to _____ - ANS2, 10
ideal range chlorine in a spa: ____ to _____ - ANS3, 5
4 types of solid chlorine - ANScalcium hypochlorite, lithium hypochlorite, trichlor, dichlor
liquid chlorine - ANSsodium hypochlorite (NaOCl)
how active is gas chlorine - ANS100%
the active killing form of chlorine in water - ANShypochlorous acid (HOCl)
HOCl = ______ - ANSH+ (hydrogen ion) + OCl- (hypochlorite ion)
most common granular chlorine (pH range) - ANScalcium hypochlorite (8.5 - 11, used to super
chlorinate water)
not common form of chlorine due to low active strength (pH) - ANSlithium hypochlorite (10.8)
tablet/stick chlorine usually used in erosion feeder (pH - what will it do?) - ANStrichlor (2.8 - 3.5,
lower alkalinity and pH over time)
salt used as a disinfectant (pH) - ANSdichlor (6.7 - common in vinyl lined pools)
most common type of chlorine used (pH) - ANSsodium hypochlorite (NaOCl - 13)
______ needs special training to use and has a pH of ____ and will _____ when added to water
- ANSgas chlorine, 0, lower pH
chlorine is most effective as a pH of _____ - ANS7.5
active disinfectant in the water - ANSfree chlorine (FC)
FC is determined by the ______ test and is maintained between ____ and ____ ppm -
ANSDPD, 2, 4
, equal to the amount of hypochlorous acid (HOCl) and the amt of hypochlorite ions (OCl-) -
ANSfree chlorine (fc)
the result of free chlorine reacting with organic compounds - ANScombine chlorine (CC)
common name and max for pools and spas for combine chlorine - ANSchloramines, 0.2, 0.5
CC = - ANSTC - FC
what will a DPD measure - ANSTC, FC
how much CC should a pool have ideally - ANSzero
shocking the pool is also called - ANSbreakpoint chlorination
breakpoint chlorination is the conversion of ________ into ______ - ANScombine chlorine,
nitrogen gas
breakpoint chlorination equation - ANSBPC = 10 x CC [BPC = 10 x (TC - FC)]
whole cyanuric acid range: _____ to ______ppm - ANS0, 100
ideal cyanuric acid range: _____ to ______ ppm - ANS30, 50
acts as a protection for chlorine compounds from UV light - ANScyanuric acid
CyA will act as a stabilizer for _______ but does not
stabilize ________ - ANSfree chlorine, bromine
The only way to reduce CyA concentration is to _______ - ANSdilute the water and replace it
whole range of bromine: ____ to _____ - ANS2, 10
ideal range of bromine: _____ to ______ - ANS4, 6
second most common disinfectant in the pool - ANSbromine
two types of bromine used - ANSsodium bromide, solid bromide
Bromine in natural form is a ______ but is in _____ form when
added to pools - ANSreddish brown liquid, solid
__________ is similar to hypochlorous acid - ANShypobromous acid
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Ashley96. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62555 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now