WATER DISTRIBUTION LEVEL 2 EXAM QUESTIONS
WITH CORRECT ANSWERS 2025/2026
What do water distribution system operators have the responsibility for? - CORRECT 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. - CORRECT ANSWER -Water pressure (20 PSI minimum)
All trenches and excavations are unsafe until... - CORRECT 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? - CORRECT ANSWER -Yes
Biofilms will grow more easily on materials that supply... - CORRECT ANSWER -Nutrients
Operators should be required to follow a prepared _________ schedule and document the work
they do - CORRECT ANSWER -PM (preventative maintenance)
A lack of chlorine residual in a distribution system could indicate? - CORRECT ANSWER -The
presence of heavy contamination
What is necessary to do when a new well, pump, or screen is completed - CORRECT ANSWER -
Disinfect
The chlorine injection should never be due to causing corrosion problems - CORRECT ANSWER -
On the intake side of the pump
, What must be done before excavation can begin? - CORRECT ANSWER -Location of underground
installations (811 locates)
When must a confined space permit be renewed? - CORRECT ANSWER -each time someone
leaves and re-enters the confined space
What does nearly every area of a managers responsibilities require? - CORRECT ANSWER -Some
type of planning
The sooner you deal with a disciple problem... - CORRECT ANSWER -The better the outcome will
be.
Who is responsible for peeve contamination of the public water system by backflow? - CORRECT
ANSWER -The water supplier
A supervisor neglecting the safety hazards could be... - CORRECT ANSWER -Fined, sentenced to
jail, barred from working
What is the operators most important responsibility with regards to safety? - CORRECT ANSWER
-Following safety procedures
What is the main purpose of a water storage facility? - CORRECT ANSWER -To provide a
sufficient amount of water to average or equalize the daily demands
What is the purpose of surge tanks? - CORRECT ANSWER -To control water hammer
Why should all storage facilities be sampled regular? - CORRECT ANSWER -To determine the
quality or the water that enters and leaves the facility?
WITH CORRECT ANSWERS 2025/2026
What do water distribution system operators have the responsibility for? - CORRECT 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. - CORRECT ANSWER -Water pressure (20 PSI minimum)
All trenches and excavations are unsafe until... - CORRECT 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? - CORRECT ANSWER -Yes
Biofilms will grow more easily on materials that supply... - CORRECT ANSWER -Nutrients
Operators should be required to follow a prepared _________ schedule and document the work
they do - CORRECT ANSWER -PM (preventative maintenance)
A lack of chlorine residual in a distribution system could indicate? - CORRECT ANSWER -The
presence of heavy contamination
What is necessary to do when a new well, pump, or screen is completed - CORRECT ANSWER -
Disinfect
The chlorine injection should never be due to causing corrosion problems - CORRECT ANSWER -
On the intake side of the pump
, What must be done before excavation can begin? - CORRECT ANSWER -Location of underground
installations (811 locates)
When must a confined space permit be renewed? - CORRECT ANSWER -each time someone
leaves and re-enters the confined space
What does nearly every area of a managers responsibilities require? - CORRECT ANSWER -Some
type of planning
The sooner you deal with a disciple problem... - CORRECT ANSWER -The better the outcome will
be.
Who is responsible for peeve contamination of the public water system by backflow? - CORRECT
ANSWER -The water supplier
A supervisor neglecting the safety hazards could be... - CORRECT ANSWER -Fined, sentenced to
jail, barred from working
What is the operators most important responsibility with regards to safety? - CORRECT ANSWER
-Following safety procedures
What is the main purpose of a water storage facility? - CORRECT ANSWER -To provide a
sufficient amount of water to average or equalize the daily demands
What is the purpose of surge tanks? - CORRECT ANSWER -To control water hammer
Why should all storage facilities be sampled regular? - CORRECT ANSWER -To determine the
quality or the water that enters and leaves the facility?
