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Water Distribution Operation and Maintenance Questions and Answers 100% Solved
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Water Distribution Operation and Maintenance
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Water Distribution Operation andMaintenance
Chlorination is the most common means of disinfection used today to protect the
public's health - answer True
As water mains and reservoirs become older, they require less maintenance - answer
False
Routine water quality monitoring consists of collecting samples at remote locations in
the system and testing fro chlorine residual and coliforms. - answer True
Existing contaminant limits mar be modified is EPA's ongoing research reveals new
information about the effects of a particular substance - answer True
Reservoirs that are not heavily used can be a source of taste, odor, and contamination
problems - answer True
When someone contacts you complaining that their drinking water looks muddy tastes
bad, or smells bad, you need not be concerned - answer False
The lack of circulation in a dead end creates nearly ideal conditions for degrading water
quality - answer True
Groundwaters are more susceptible to contamination that surface waters - answer
False
A water supply that is satisfactory for one purpose, might be entirely unsatisfactory for
another - answer True
Chloramines are considered a more powerful disinfectant than chlorine - answer True
Under what conditions should water mains be located adjacent to sewer lines? - answer
When physical conditions or soil conditions prevent minimum separation distances from
being met
How can corrosion be prevented on the insides of cement or metal pipes - answer Line
with asphalt or coal tar coatings
What influences the knowledge and skills required to work as a water distribution
system operator in a given system? - answerThe size of the water distribution system
, What are organics? - answer Chemical substances that are based on the element
carbon
Why are chloramines more effective against biofilms than chlorine? - answer More
persistent
1.3 Why have drinking water quality standards been prepared and used? - answer To
provide the needed quality control and ensure the acceptability of the product
1.5.3 Why is water quality monitoring of distribution systems important? - answer To
identify when and where water quality changes occur in the system
1.5.2.1 When water lines are being repaired, how can possible contamination of the
water line be prevented? - answer Keep the hole dewatered
What are pathogens? - answer disease causing organisms
What is the primary responsibility of a water treatment plant? - answer To produce safe
and Palatable water
What is considered the greatest water quality nuisance? - answer Corrosion and
precipitation of iron
What types of consumer complaints can result from hydrant testing and flushing
programs? - answer Dirty water complaints
What is the purpose of adequate an reliable records? - answer To document the
effectiveness of the operation
What is every operator’s responsibility with regard to safety'? - answer Be sure that
facilities are a safe place to work and that everyone follows safe procedures
What should I do after investigating a drinking water complaint? - answer Notify the
person who complained of the results and what corrective action was or will be taken
What is the term for treated water storage facilities at water treatment plants? - answer
Clear wells
What does the term water quality describe? - answer The composite chemical, physical
and biological characteristics of a water supply
What is one of the best results from a well-guided tour of water system facilities? -
answer Gaining support to obtain the funds necessary to run a good operation
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