Texas Class D Water Operator License
Exam Practice Test (Latest 2025/2026
Update) 300 Questions with Verified
Answers | 100% Correct.
Question:
Operators have a responsibility to provide drinking water that meets
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
federal and state i,- i,-
standards. (true/false)? i,-
Answer:
true
Question:
Water must be disinfected, delivered at inadequate pressure, and be
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
ample in quantity. (true/false)?
i,- i,- i,-
Answer:
false (adequate pressure)
i,- i,-
Question:
,Utility employees should guard the water supply and facilities from
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
contamination, public i,-
tours, and even terrorism. (true/false)?
i,- i,- i,- i,-
Answer:
false (public tours)
i,- i,-
Question:
The state requires bacteriological sample results be kept _____ years.?
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Answer:
5 years
i,-
Question:
The state requires chemical analysis be kept at least _____ years.?
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
Answer:
10 years
i,-
Question:
EPA requires a water system to keep a copy of each consumer confidence
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
report at least _____ i,- i,- i,-
years.?
,Answer:
5 years
i,-
Question:
A public water system provides the public with piped water for human
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
consumption, serves i,-
at least _____ service connections, and regularly serves at least _____
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
individuals daily at least _____ i,- i,- i,- i,-
days out of the year.?
i,- i,- i,- i,-
Answer:
15 service connections
i,- i,-
25 individuals
i,-
60 days out of the year
i,- i,- i,- i,- i,-
Question:
The water utility field affects everyone because _____.?
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Answer:
water is essential to life and health
i,- i,- i,- i,- i,- i,-
Question:
, The water utility employee should remember customers are entitled to
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
_____ and _____.?i,- i,-
Answer:
courteous treatment and answers to questions about water
i,- i,- i,- i,- i,- i,- i,-
Question:
In Texas, water operator licensing is administered by the _____.?
i,- i,- i,- i,- i,- i,- i,- i,- i,-
Answer:
TCEQ
Question:
All public water systems are required to employ licensed operators even if
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
the system only
i,- i,-
_____ treated water bought from another source.?
i,- i,- i,- i,- i,- i,-
Answer:
redistributes treated water i,- i,-
Question:
Public water systems include cities, municipal utility districts, rural water
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
supply
corporations, mobile home parks, and _____.? i,- i,- i,- i,- i,-
Exam Practice Test (Latest 2025/2026
Update) 300 Questions with Verified
Answers | 100% Correct.
Question:
Operators have a responsibility to provide drinking water that meets
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
federal and state i,- i,-
standards. (true/false)? i,-
Answer:
true
Question:
Water must be disinfected, delivered at inadequate pressure, and be
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
ample in quantity. (true/false)?
i,- i,- i,-
Answer:
false (adequate pressure)
i,- i,-
Question:
,Utility employees should guard the water supply and facilities from
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
contamination, public i,-
tours, and even terrorism. (true/false)?
i,- i,- i,- i,-
Answer:
false (public tours)
i,- i,-
Question:
The state requires bacteriological sample results be kept _____ years.?
i,- i,- i,- i,- i,- i,- i,- i,- i,-
Answer:
5 years
i,-
Question:
The state requires chemical analysis be kept at least _____ years.?
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
Answer:
10 years
i,-
Question:
EPA requires a water system to keep a copy of each consumer confidence
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
report at least _____ i,- i,- i,-
years.?
,Answer:
5 years
i,-
Question:
A public water system provides the public with piped water for human
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
consumption, serves i,-
at least _____ service connections, and regularly serves at least _____
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
individuals daily at least _____ i,- i,- i,- i,-
days out of the year.?
i,- i,- i,- i,-
Answer:
15 service connections
i,- i,-
25 individuals
i,-
60 days out of the year
i,- i,- i,- i,- i,-
Question:
The water utility field affects everyone because _____.?
i,- i,- i,- i,- i,- i,- i,-
Answer:
water is essential to life and health
i,- i,- i,- i,- i,- i,-
Question:
, The water utility employee should remember customers are entitled to
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
_____ and _____.?i,- i,-
Answer:
courteous treatment and answers to questions about water
i,- i,- i,- i,- i,- i,- i,-
Question:
In Texas, water operator licensing is administered by the _____.?
i,- i,- i,- i,- i,- i,- i,- i,- i,-
Answer:
TCEQ
Question:
All public water systems are required to employ licensed operators even if
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
the system only
i,- i,-
_____ treated water bought from another source.?
i,- i,- i,- i,- i,- i,-
Answer:
redistributes treated water i,- i,-
Question:
Public water systems include cities, municipal utility districts, rural water
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
supply
corporations, mobile home parks, and _____.? i,- i,- i,- i,- i,-
