LEVEL 1 WATER DISTRIBUTION PRACTICE TEST ExAm LATEST 2026
ACTUAL QUESTIONS AND VERIFIED ANSWERS (LATEST
UPDATE) A+ gRADE 100% gUARANTEE VERIFIED By ExPERTS
The minimum and maximum chloride residual in a water distribution system is ? -
ANSWER-0.2 mg/l and 4mg/L of free chlorine
Nitrate may not exceed what concentration when tested yearly for a groundwater
treatment plant ? - ANSWER-10 mg/L
The minimum number of total coliform samples that must be collected per month is
based on Wich of the following ? - ANSWER-The population served by the system
When a distribution bacteriological sample is positive for a total coliform the procedure
is ? - ANSWER-Repeat the sample and take a sample 5 connections upstream and
downstream to confirm total coliform
For lead and copper sample the water must be In the pipeline for at least? - ANSWER-6
hours
What is hydraulic grade line ? - ANSWER-A line to which the water level would rise in a
small ,vertical tube,connected to the pipe
How often should cathodic protection anodes in your system be inspected? - ANSWER-
Every year
Water pipelines are generally designed to carry water at a velocity below ? - ANSWER-
2.5b FPS. Feet per second
, Energy use in water systems is defined best by ? - ANSWER-Energy use varies among
systems and an energy inventory study would need to be conducted to determine
relationships
The minimum recommended separation distance between a water main and a storm
sewer is ? - ANSWER-6 feet
Which of the following should be in an organization plan ? - ANSWER-Identifies clear
lines ,defines the divisions of labor ,establishes unity of command
If pipelines are not restrained using steel rods concrete thrust blocks can be used at ? -
ANSWER-Every bend and transition
Engineering Drawings that show the depth of pipe, the pipe location both vertically and
horizontally and the correct distance form a reference point are known as which of the
following - ANSWER-Plan and profile drawings
Which are the components of directing staff ? - ANSWER-Motivating & communicating
The accuracy of large meters should fall within what range ? - ANSWER-Not less than
97% not more than 103%
In some older water system lead service line still exist. What would be the best practice
when finding lead pipe ? - ANSWER-Be replaced
What is the acceptable range for water loss in a typical municipal distribution system
that has a variety of pvc and di pipe ? - ANSWER-20% (80% effienciency)
What is a major cause of underground construction deaths ? - ANSWER-Lack of shoring
or shoring failure
ACTUAL QUESTIONS AND VERIFIED ANSWERS (LATEST
UPDATE) A+ gRADE 100% gUARANTEE VERIFIED By ExPERTS
The minimum and maximum chloride residual in a water distribution system is ? -
ANSWER-0.2 mg/l and 4mg/L of free chlorine
Nitrate may not exceed what concentration when tested yearly for a groundwater
treatment plant ? - ANSWER-10 mg/L
The minimum number of total coliform samples that must be collected per month is
based on Wich of the following ? - ANSWER-The population served by the system
When a distribution bacteriological sample is positive for a total coliform the procedure
is ? - ANSWER-Repeat the sample and take a sample 5 connections upstream and
downstream to confirm total coliform
For lead and copper sample the water must be In the pipeline for at least? - ANSWER-6
hours
What is hydraulic grade line ? - ANSWER-A line to which the water level would rise in a
small ,vertical tube,connected to the pipe
How often should cathodic protection anodes in your system be inspected? - ANSWER-
Every year
Water pipelines are generally designed to carry water at a velocity below ? - ANSWER-
2.5b FPS. Feet per second
, Energy use in water systems is defined best by ? - ANSWER-Energy use varies among
systems and an energy inventory study would need to be conducted to determine
relationships
The minimum recommended separation distance between a water main and a storm
sewer is ? - ANSWER-6 feet
Which of the following should be in an organization plan ? - ANSWER-Identifies clear
lines ,defines the divisions of labor ,establishes unity of command
If pipelines are not restrained using steel rods concrete thrust blocks can be used at ? -
ANSWER-Every bend and transition
Engineering Drawings that show the depth of pipe, the pipe location both vertically and
horizontally and the correct distance form a reference point are known as which of the
following - ANSWER-Plan and profile drawings
Which are the components of directing staff ? - ANSWER-Motivating & communicating
The accuracy of large meters should fall within what range ? - ANSWER-Not less than
97% not more than 103%
In some older water system lead service line still exist. What would be the best practice
when finding lead pipe ? - ANSWER-Be replaced
What is the acceptable range for water loss in a typical municipal distribution system
that has a variety of pvc and di pipe ? - ANSWER-20% (80% effienciency)
What is a major cause of underground construction deaths ? - ANSWER-Lack of shoring
or shoring failure
