Water Treatment Class D (practice exam -4) Questions With 100- Correct Answers
2 views 0 purchase
Course
Water Treatment Class D
Institution
Water Treatment Class D
Which of the following is a requirement for viruses under the surface water treatment rule? - ANS - 99.99% removal and/or inactivation.
What is the process that transfers water vapor from living plants into the atmosphere? - ANS - Evapotranspiration
When must a repeat sample be taken? - ANS...
Water Treatment Class D (practice exam
#4) Questions With 100% Correct
Answers
What is an example of a non-community, transient water system? - ANS ✔ - rest stop
What might occur after a filter has been backwashed? - ANS ✔ - Turbidity momentarily increases in
the filter effluent.
What is the lowest reportable concentration for a constituents called? - ANS ✔ - Detection level for
reporting
Which of the following is part of the multiple tube fermentation analysis? - ANS ✔ - presumptive,
confirmed, completed
What is 4 log removal? - ANS ✔ - 99.99%
What is considered to be a base? - ANS ✔ - pH in the range of 8 to 14
Which organisms use organic matter for energy growth? - ANS ✔ - heterotrophic
What organism is cable of causing diseases? - ANS ✔ - Pathogen
What is the term used to describe removal or destruction of all microorganisms? - ANS ✔ -
Sterilization
Which process releases water vapor into the atmosphere by living plants? - ANS ✔ - transpiration
What is the zone of saturation? - ANS ✔ - The soil located below the top of the groundwater table
, Water Treatment Class D (practice exam
#4) Questions With 100% Correct
Answers
What is an example of combined chlorine? - ANS ✔ - Monochloramine
Which of the following is a chlorine spill kit for a one-ton container? - ANS ✔ - Spill kit B.
What is the purpose of pre-chlorination? - ANS ✔ - To control taste
What should be used to convey chlorine gas out of a one-ton container? - ANS ✔ - Upper valve
What is typically the cause of taste and odor problems in raw surface water? - ANS ✔ - Algae growth
What is the best pH for coagulation? - ANS ✔ - 5-7
What are the 4 zones of a clarifier? - ANS ✔ - inlet, outlet, settling, sludge
What is used to protect the under drain in a filtration system? - ANS ✔ - Gravel
What is not the cause of a short filter run? - ANS ✔ - low flow
What would not trigger a backwash in a filtration system? - ANS ✔ - temperature
What is breakthrough? - ANS ✔ - A crack in the filter bed that allows flocs to pass through
Where should sodium hypochlorite be stored? - ANS ✔ - Away from anything that will corrode.
What is the langelier's saturation index? - ANS ✔ - An indicator of the corrosivity of water
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 SMARTSCORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
