Texas Class D Water Operator License Exam Practice Test (Latest 2025/2026 Update) 300 Questions with Verified Answers | 100% Correct.

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
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federal and state i,- i,-




standards. (true/false)? i,-




Answer:
true




Question:
Water must be disinfected, delivered at inadequate pressure, and be
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ample in quantity. (true/false)?
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Answer:

false (adequate pressure)
i,- i,-




Question:

,Utility employees should guard the water supply and facilities from
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contamination, public i,-




tours, and even terrorism. (true/false)?
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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.?
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Answer:

10 years
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Question:

EPA requires a water system to keep a copy of each consumer confidence
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report at least _____ i,- i,- i,-




years.?

,Answer:
5 years
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Question:

A public water system provides the public with piped water for human
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consumption, serves i,-




at least _____ service connections, and regularly serves at least _____
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individuals daily at least _____ i,- i,- i,- i,-




days out of the year.?
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Answer:

15 service connections
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25 individuals
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60 days out of the year
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Question:

The water utility field affects everyone because _____.?
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Answer:

water is essential to life and health
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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
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Question:

In Texas, water operator licensing is administered by the _____.?
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Answer:

TCEQ




Question:

All public water systems are required to employ licensed operators even if
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the system only
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_____ treated water bought from another source.?
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Answer:

redistributes treated water i,- i,-




Question:
Public water systems include cities, municipal utility districts, rural water
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supply
corporations, mobile home parks, and _____.? i,- i,- i,- i,- i,-