LEVEL 1 WATER DISTRIBUTION UPDATED EXAM SCRIPT
QUESTIONS AND ANSWERS SURE A+
If the tds is marginally too high for the pump the likely result will be ? - ✔✔Decrease in
flow rate
Air release valves are installed at what location in a water line ? - ✔✔At high points of a
pipe line
The maximum pressure at service connections should be less than ? - ✔✔100 psi
In selecting and Evaluating a tank, storage capacity must be matched _______of the
system ? - ✔✔Peak demand
A hydraulic grade line will always slope in what direction ? - ✔✔Slope downward in the
direction of the water flow
Where does the majority of microbial growth with in a water distribution system occur ? -
✔✔Dead end water lines
Wells that are biologically contaminated from repeat coliform or fecal coliform must be
bacteriologically surveyed and sample which is not correct ? - ✔✔They must be at least
12 hours apart
When backfilling a pipe line how deep should the first layer of backfill be compacted -
✔✔At the horizontal centerline of the pipe
What is an important step in problem solving - ✔✔Realization that a problem still exist
What type of pipe joint is a considered inflexible and therefore is not usually installed
below ground ? - ✔✔Flanged joint
buttefly valves are used in distribution systems ? - ✔✔Generally when the pipeline is
greater than 16''.
When someone throttling might be replaced .
When a motorized operator is needed for automated control .
Fire hydrants should be placed at ? - ✔✔350 to 600 feet apart
At all intersections
In close proximity when used in high value commercials applications
, AWWA M-17 requires how many fire hydrants to be used when conducting a fire flow
test ? - ✔✔Two
An unsafe condition per osha regulations would be ? - ✔✔Working in granular soil with
a trench width less than 1:1
What type of pump consist of an impeller fixed on a rotating shaft enclosed in a casing ?
- ✔✔A centrifugal pump
The purpose of a check valve is to ? - ✔✔To prevent flow in a reverse direction
A complete framework of wood and or a metal that is designated to support the walls of
a trench is referred to as Wich or the following ? - ✔✔Shoring
A weighted check valve if improperly adjusted can result in ? - ✔✔Water hammer
Protected classes of employees includes? - ✔✔Over 40 years of age gender and
political affiliation
Gate valves are used in water distribution systems because ? - ✔✔They exhibit less
friction than other valves
Wich of the following best describes the definition of controlling ? - ✔✔Ensuring that
progress is being made toward objectives and taking corrective actions as Necessary
What are 4 types of maintenance in preventative maintenance program ? -
✔✔Predictive maintenance,predictive maintenance,planned maintenance, corrective
maintenance
About how many gallons would a 6'' pipeline ,1000 feet long hold - ✔✔1500
Why is the objective of any safety program? - ✔✔To prevent accidents
What is the chlorine residual in a treated water if the dose was 2.1 mg/L and the
demand was. 0.8 mg/L ? - ✔✔1.3 mg/L
If the chlorine demand of the water was 2.5 mg/L and the system required a 0.5 mg/L
residual about how much chlorine in lbs ? Would be needed to be fed to one million
gallons of water ? - ✔✔30 lbs
Estimate how many gallons of water a circular talk 40 feet in diameter and 10 feet deep
will hold ? - ✔✔94,000 gallons
QUESTIONS AND ANSWERS SURE A+
If the tds is marginally too high for the pump the likely result will be ? - ✔✔Decrease in
flow rate
Air release valves are installed at what location in a water line ? - ✔✔At high points of a
pipe line
The maximum pressure at service connections should be less than ? - ✔✔100 psi
In selecting and Evaluating a tank, storage capacity must be matched _______of the
system ? - ✔✔Peak demand
A hydraulic grade line will always slope in what direction ? - ✔✔Slope downward in the
direction of the water flow
Where does the majority of microbial growth with in a water distribution system occur ? -
✔✔Dead end water lines
Wells that are biologically contaminated from repeat coliform or fecal coliform must be
bacteriologically surveyed and sample which is not correct ? - ✔✔They must be at least
12 hours apart
When backfilling a pipe line how deep should the first layer of backfill be compacted -
✔✔At the horizontal centerline of the pipe
What is an important step in problem solving - ✔✔Realization that a problem still exist
What type of pipe joint is a considered inflexible and therefore is not usually installed
below ground ? - ✔✔Flanged joint
buttefly valves are used in distribution systems ? - ✔✔Generally when the pipeline is
greater than 16''.
When someone throttling might be replaced .
When a motorized operator is needed for automated control .
Fire hydrants should be placed at ? - ✔✔350 to 600 feet apart
At all intersections
In close proximity when used in high value commercials applications
, AWWA M-17 requires how many fire hydrants to be used when conducting a fire flow
test ? - ✔✔Two
An unsafe condition per osha regulations would be ? - ✔✔Working in granular soil with
a trench width less than 1:1
What type of pump consist of an impeller fixed on a rotating shaft enclosed in a casing ?
- ✔✔A centrifugal pump
The purpose of a check valve is to ? - ✔✔To prevent flow in a reverse direction
A complete framework of wood and or a metal that is designated to support the walls of
a trench is referred to as Wich or the following ? - ✔✔Shoring
A weighted check valve if improperly adjusted can result in ? - ✔✔Water hammer
Protected classes of employees includes? - ✔✔Over 40 years of age gender and
political affiliation
Gate valves are used in water distribution systems because ? - ✔✔They exhibit less
friction than other valves
Wich of the following best describes the definition of controlling ? - ✔✔Ensuring that
progress is being made toward objectives and taking corrective actions as Necessary
What are 4 types of maintenance in preventative maintenance program ? -
✔✔Predictive maintenance,predictive maintenance,planned maintenance, corrective
maintenance
About how many gallons would a 6'' pipeline ,1000 feet long hold - ✔✔1500
Why is the objective of any safety program? - ✔✔To prevent accidents
What is the chlorine residual in a treated water if the dose was 2.1 mg/L and the
demand was. 0.8 mg/L ? - ✔✔1.3 mg/L
If the chlorine demand of the water was 2.5 mg/L and the system required a 0.5 mg/L
residual about how much chlorine in lbs ? Would be needed to be fed to one million
gallons of water ? - ✔✔30 lbs
Estimate how many gallons of water a circular talk 40 feet in diameter and 10 feet deep
will hold ? - ✔✔94,000 gallons
