What test does a treatment plant operator perform to determine the most effective
coagulant dose?
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Jar Test
,Information concerning chemicals in the workplace should be available to employees
in the form of a:
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Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS)
What are public water systems expected to provide to their customers at all times?
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Proper disinfection of delivered water
Sufficient water pressure
Sufficient quantity of water
(ALL OF THE ABOVE)
Although each step of the water treatment process is important, which process is
often referred to as the most important?
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Disinfection
The sound of "pumping gravel" or a "pinging" sound coming from a centrifugal pump
is usually the result of:
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, Cavitation
What is the purpose of installing a check valve on the discharge side of a pump?
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Prevent reverse flow through the pump when it is off
Pipe and fittings used in public water systems may not contain more than ____% lead or
solder and flux may not contain more than ____% lead.
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0.25, 0.2
What is a leading cause of a water main failure in a public water distribution system?
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Lack of proper bedding and improper backfill
Which of the below options are common types of pumps for use in deep water wells?
(choose all that apply)
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coagulant dose?
Give this one a try later!
Jar Test
,Information concerning chemicals in the workplace should be available to employees
in the form of a:
Give this one a try later!
Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS)
What are public water systems expected to provide to their customers at all times?
Give this one a try later!
Proper disinfection of delivered water
Sufficient water pressure
Sufficient quantity of water
(ALL OF THE ABOVE)
Although each step of the water treatment process is important, which process is
often referred to as the most important?
Give this one a try later!
Disinfection
The sound of "pumping gravel" or a "pinging" sound coming from a centrifugal pump
is usually the result of:
Give this one a try later!
, Cavitation
What is the purpose of installing a check valve on the discharge side of a pump?
Give this one a try later!
Prevent reverse flow through the pump when it is off
Pipe and fittings used in public water systems may not contain more than ____% lead or
solder and flux may not contain more than ____% lead.
Give this one a try later!
0.25, 0.2
What is a leading cause of a water main failure in a public water distribution system?
Give this one a try later!
Lack of proper bedding and improper backfill
Which of the below options are common types of pumps for use in deep water wells?
(choose all that apply)
Give this one a try later!
