1|Page
Class D Water Operator 2025 Latest Ultimate Exam
Prep Test Bank with 900 Questions and Answers
with Definition of Terms/ Water Operator Class D
License Exam Latest (Most Recent Qs)
Operators have a responsibility to provide drinking water
that meets federal and state
standards. (true/false) - ...ANSWER...✓✓ true
Water must be disinfected, delivered at inadequate
pressure, and be ample in quantity. (true/false) -
...ANSWER...✓✓ false (adequate pressure)
Utility employees should guard the water supply and
facilities from contamination, public
tours, and even terrorism. (true/false) - ...ANSWER...✓✓
false (public tours)
The state requires bacteriological sample results be kept
_____ years. - ...ANSWER...✓✓ 5 years
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The state requires chemical analysis be kept at least _____
years. - ...ANSWER...✓✓ 10 years
EPA requires a water system to keep a copy of each
consumer confidence report at least _____
years. - ...ANSWER...✓✓ 5 years
A public water system provides the public with piped
water for human consumption, serves
at least _____ service connections, and regularly serves at
least _____ individuals daily at least _____
days out of the year. - ...ANSWER...✓✓ 15 service
connections
25 individuals
60 days out of the year
The water utility field affects everyone because _____. -
...ANSWER...✓✓ water is essential to life and health
The water utility employee should remember customers
are entitled to _____ and _____. - ...ANSWER...✓✓
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courteous treatment and answers to questions about
water
In Texas, water operator licensing is administered by the
_____. - ...ANSWER...✓✓ TCEQ
All public water systems are required to employ licensed
operators even if the system only
_____ treated water bought from another source. -
...ANSWER...✓✓ redistributes treated water
Public water systems include cities, municipal utility
districts, rural water supply
corporations, mobile home parks, and _____. -
...ANSWER...✓✓ campgrounds
Examples of community water systems include ________.
a. municipalities
b. municipal utility districts
c. rural water supply corporations
d. mobile home parks
e. all the above - ...ANSWER...✓✓ e. all of the above
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A federal agency impacting the water utility industry is
the _____. - ...ANSWER...✓✓ EPA
The most important federal law impacting the water utility
industry is the _____. - ...ANSWER...✓✓ Safe Drinking
Water Act (PL93-523)
The four national safety and quality standards for drinking
water covered in the Safe
Drinking Water Act are physical, chemical, ________ and
radiological. - ...ANSWER...✓✓ bacteriological
The state agency that regulates drinking water in Texas
and administers the federal Safe
Drinking Water Act is the ________. - ...ANSWER...✓✓ TCEQ
Water utility system personnel are required to notify the
TCEQ of changes or alterations of
the system, a new facility to be built, and water supply
________. - ...ANSWER...✓✓ health hazards
Class D Water Operator 2025 Latest Ultimate Exam
Prep Test Bank with 900 Questions and Answers
with Definition of Terms/ Water Operator Class D
License Exam Latest (Most Recent Qs)
Operators have a responsibility to provide drinking water
that meets federal and state
standards. (true/false) - ...ANSWER...✓✓ true
Water must be disinfected, delivered at inadequate
pressure, and be ample in quantity. (true/false) -
...ANSWER...✓✓ false (adequate pressure)
Utility employees should guard the water supply and
facilities from contamination, public
tours, and even terrorism. (true/false) - ...ANSWER...✓✓
false (public tours)
The state requires bacteriological sample results be kept
_____ years. - ...ANSWER...✓✓ 5 years
,2|Page
The state requires chemical analysis be kept at least _____
years. - ...ANSWER...✓✓ 10 years
EPA requires a water system to keep a copy of each
consumer confidence report at least _____
years. - ...ANSWER...✓✓ 5 years
A public water system provides the public with piped
water for human consumption, serves
at least _____ service connections, and regularly serves at
least _____ individuals daily at least _____
days out of the year. - ...ANSWER...✓✓ 15 service
connections
25 individuals
60 days out of the year
The water utility field affects everyone because _____. -
...ANSWER...✓✓ water is essential to life and health
The water utility employee should remember customers
are entitled to _____ and _____. - ...ANSWER...✓✓
,3|Page
courteous treatment and answers to questions about
water
In Texas, water operator licensing is administered by the
_____. - ...ANSWER...✓✓ TCEQ
All public water systems are required to employ licensed
operators even if the system only
_____ treated water bought from another source. -
...ANSWER...✓✓ redistributes treated water
Public water systems include cities, municipal utility
districts, rural water supply
corporations, mobile home parks, and _____. -
...ANSWER...✓✓ campgrounds
Examples of community water systems include ________.
a. municipalities
b. municipal utility districts
c. rural water supply corporations
d. mobile home parks
e. all the above - ...ANSWER...✓✓ e. all of the above
, 4|Page
A federal agency impacting the water utility industry is
the _____. - ...ANSWER...✓✓ EPA
The most important federal law impacting the water utility
industry is the _____. - ...ANSWER...✓✓ Safe Drinking
Water Act (PL93-523)
The four national safety and quality standards for drinking
water covered in the Safe
Drinking Water Act are physical, chemical, ________ and
radiological. - ...ANSWER...✓✓ bacteriological
The state agency that regulates drinking water in Texas
and administers the federal Safe
Drinking Water Act is the ________. - ...ANSWER...✓✓ TCEQ
Water utility system personnel are required to notify the
TCEQ of changes or alterations of
the system, a new facility to be built, and water supply
________. - ...ANSWER...✓✓ health hazards
