Matching questions
1-15 of 15
Click a term to match it with a definition
* extremely important to maintain a positive pressure within all portions of system, not
only to serve firefighting/customer needs, but also prevent contamination of system.
* Lack of positive pressure can potentially cause contaminated groundwater to enter
pipes through cracks.
* Negative pressure may draw contaminated water from an unapproved source of
water.
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Explain why it is important to maintain a positive pressure within all portions
of the distribution system and describe what can happen if pressure is
insufficient
secondary disinfection generally achieved either by chlorination or chloramination
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, Name different ways in which secondary disinfection can be achieved
* valves used in dist system to isolate portions of system for repair, cleaning,
maintenance or adding additional lines.
* may also be used to regulate flow or pressure of water in pipe
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Describe the purpose of valves in dis systems
Challenges include:
* excessive demands caused by firefighting
* broken or frozen water mains
* pump failures can create serious problems
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What are some challenges to maintaining sufficient pressure or reasons
why pressure might become insufficient?
* periodically, mains are flushed to remove deposits from pipelines.
* flushing normally achieved by opening a hydrant
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Why are dist pipes flushed and how is this achieved?
1-15 of 15
Click a term to match it with a definition
* extremely important to maintain a positive pressure within all portions of system, not
only to serve firefighting/customer needs, but also prevent contamination of system.
* Lack of positive pressure can potentially cause contaminated groundwater to enter
pipes through cracks.
* Negative pressure may draw contaminated water from an unapproved source of
water.
Give this one a try later!
Explain why it is important to maintain a positive pressure within all portions
of the distribution system and describe what can happen if pressure is
insufficient
secondary disinfection generally achieved either by chlorination or chloramination
Give this one a try later!
, Name different ways in which secondary disinfection can be achieved
* valves used in dist system to isolate portions of system for repair, cleaning,
maintenance or adding additional lines.
* may also be used to regulate flow or pressure of water in pipe
Give this one a try later!
Describe the purpose of valves in dis systems
Challenges include:
* excessive demands caused by firefighting
* broken or frozen water mains
* pump failures can create serious problems
Give this one a try later!
What are some challenges to maintaining sufficient pressure or reasons
why pressure might become insufficient?
* periodically, mains are flushed to remove deposits from pipelines.
* flushing normally achieved by opening a hydrant
Give this one a try later!
Why are dist pipes flushed and how is this achieved?
