Water Distribution Chapter 1
Questions and Answers Already
Graded A+
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 and less
maintenance. - ANSWER-False
Routine water quality monitoring of distribution systems consists of collecting
samples at remote locations in the system and testing for chlorine residual and coli
forms - 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,
taste 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
Ground waters are more susceptible to contamination than surface waters. -
ANSWER-False
A water supply that us satisfactory in quality for one purpose might be entirely
unsatisfactory for another - ANSWER-True
Chloramines are considered a more powerful disinfectant than chlorine. - ANSWER-
False
Under what conditions may 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? - ANSWER-The size and type of 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
Why have drinking water quality standards been prepared and used? - ANSWER-Tp
provide the needed quality control and ensure the acceptability of the product
Why is water quality monitoring of distribution systems important? - ANSWER-to
identify when and where water quality changes occur in the system.
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
a 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 and reliable records? - ANSWER-To document the
effectiveness of the operation
What is every operators responsibility with regard to safety? - ANSWER-Be sure that
the facilities are a safe place to work and that everyone follows safe procedures
What should you 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 the 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
Questions and Answers Already
Graded A+
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 and less
maintenance. - ANSWER-False
Routine water quality monitoring of distribution systems consists of collecting
samples at remote locations in the system and testing for chlorine residual and coli
forms - 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,
taste 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
Ground waters are more susceptible to contamination than surface waters. -
ANSWER-False
A water supply that us satisfactory in quality for one purpose might be entirely
unsatisfactory for another - ANSWER-True
Chloramines are considered a more powerful disinfectant than chlorine. - ANSWER-
False
Under what conditions may 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? - ANSWER-The size and type of 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
Why have drinking water quality standards been prepared and used? - ANSWER-Tp
provide the needed quality control and ensure the acceptability of the product
Why is water quality monitoring of distribution systems important? - ANSWER-to
identify when and where water quality changes occur in the system.
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
a 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 and reliable records? - ANSWER-To document the
effectiveness of the operation
What is every operators responsibility with regard to safety? - ANSWER-Be sure that
the facilities are a safe place to work and that everyone follows safe procedures
What should you 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 the 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
