Exam (elaborations)
Water Distribution Level 2 Questions and Answers 2024
- Course
- Institution
Water Distribution Level 2
[Show more]
Content preview
Water Distribution Level 2What do water distribution system operators have the responsibility for? - answer The
health and well-being of the community they serve
Frequently the water supplier tries to maintain specific minimum target
__________________ throughput the distribution system. - answer Water pressure (20
PSI minimum)
All trenches and excavations are unsafe until... - answer Proper shoring, used, and back
filled
Can the quality of water coming out of the consumers tap can be affected by what
happens to the water as it travels through the consumers own system? - answer Yes
Biofilms will grow more easily on materials that supply... - answer Nutrients
Operators should be required to follow a prepared _________ schedule and document
the work they do – answer PM (preventative maintenance)
A lack of chlorine residual in a distribution system could indicate? - answer The
presence of heavy contamination
What is necessary to do when a new well, pump, or screen is completed - answer
Disinfect
The chlorine injection should never be due to causing corrosion problems - answer On
the intake side of the pump
What must be done before excavation can begin? - answer Location of underground
installations (811 locates)
When must a confined space permit be renewed? - answer each time someone leaves
and re-enters the confined space
What does nearly every area of a managers responsibilities require? - answer Some
type of planning
The sooner you deal with a disciple problem... - answer The better the outcome will be.
Who is responsible for peeve contamination of the public water system by backflow? -
answerThe water supplier
, A supervisor neglecting the safety hazards could be... - answer Fined, sentenced to jail,
barred from working
What is the operators most important responsibility with regards to safety? - answer
Following safety procedures
What is the main purpose of a water storage facility? - answer To provide a sufficient
amount of water to average or equalize the daily demands
What is the purpose of surge tanks? - answer To control water hammer
Why should all storage facilities be sampled regular? - answer To determine the quality
or the water that enters and leaves the facility?
Why is backflow a concern for water distribution system operators? - answer Flow from
non potable source could contaminate distribution system
Why can air because a problem in a water main? - answer Air can collect and stop the
flow of water completely
What is a cross-connection? - answer Unprotected connection between a drinking water
supply and a system NOT approved as safe.
What is back pressure? - answer Backflow caused when the users water system
pressure is higher than the public system
Which type of corrosion-control inhibitor may stimulate bacterial growth? - answer
Phosphate-based product
What is the main objective of distribution system maintenance? - answer Provide
maximum continuous equipment service at the lowest possible cost.
What should be done immediately if there is any evidence that distribution system has
been tampered with by vandals or terrorists? - answer Take facility out of service
What is an air gap separation device? - answer A vertical empty space that separates a
drinking wanted supply from an unapproved water system
What information is available from a geographic information system (GIS) computer
program? - answer Map with detailed information about the physical structures within
geographic areas.
What is disinfection? - answer Selective destruction or inactivation of pathogenic
organisms
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 Dreamer252. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now