LEVEL 1 WATER DISTRIBUTION PRACTICE TEST
QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS
The minimum and maximum chloride residual in a water distribution
system is ? Correct Answers 0.2 mg/l and 4mg/L of free chlorine
Nitrate may not exceed what concentration when tested yearly for a
groundwater treatment plant ? Correct Answers 10 mg/L
The minimum number of total coliform samples that must be collected
per month is based on Wich of the following ? Correct Answers The
population served by the system
When a distribution bacteriological sample is positive for a total
coliform the procedure is ? Correct Answers 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? Correct Answers 6 hours
What is hydraulic grade line ? Correct Answers 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? Correct Answers Every year
, Water pipelines are generally designed to carry water at a velocity below
? Correct Answers 2.5b FPS. Feet per second
Energy use in water systems is defined best by ? Correct Answers
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 ? Correct Answers 6 feet
Which of the following should be in an organization plan ? Correct
Answers 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 ? Correct Answers 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 Correct Answers Plan and
profile drawings
Which are the components of directing staff ? Correct Answers
Motivating & communicating
The accuracy of large meters should fall within what range ? Correct
Answers Not less than 97% not more than 103%
QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS
The minimum and maximum chloride residual in a water distribution
system is ? Correct Answers 0.2 mg/l and 4mg/L of free chlorine
Nitrate may not exceed what concentration when tested yearly for a
groundwater treatment plant ? Correct Answers 10 mg/L
The minimum number of total coliform samples that must be collected
per month is based on Wich of the following ? Correct Answers The
population served by the system
When a distribution bacteriological sample is positive for a total
coliform the procedure is ? Correct Answers 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? Correct Answers 6 hours
What is hydraulic grade line ? Correct Answers 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? Correct Answers Every year
, Water pipelines are generally designed to carry water at a velocity below
? Correct Answers 2.5b FPS. Feet per second
Energy use in water systems is defined best by ? Correct Answers
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 ? Correct Answers 6 feet
Which of the following should be in an organization plan ? Correct
Answers 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 ? Correct Answers 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 Correct Answers Plan and
profile drawings
Which are the components of directing staff ? Correct Answers
Motivating & communicating
The accuracy of large meters should fall within what range ? Correct
Answers Not less than 97% not more than 103%
