Texas Class D Water Operator Certification Mastery (2025–2026): Practice Problems with Detailed Explanations Based on ABC & TCEQ Standards

CLASS D WATER LICENSE – TEXAS
LATEST EXAM 2025/2026 WITH
ORGANIZED QUESTIONS FULLY
SOLVED STEP BY STEP EXPLANATIONS
AND REVIEW GUIDE ALREADY
GRADED A+ AND 100% GUARANTEE
PASS (BRAND NEW EDITION!!!!!!)




The water utility field affects everyone because _____. - THE
CORRECT ANSWER-water is essential to life and health



The water utility employee should remember customers are
entitled to _____ and _____. - THE CORRECT ANSWER-courteous
treatment and answers to questions about water


In Texas, water operator licensing is administered by the
_____. - THE CORRECT ANSWER-TCEQ


All public water systems are required to employ licensed
operators even if the system only
_____ treated water bought from another source. - THE CORRECT
ANSWER-redistributes treated water



Public water systems include cities, municipal utility districts,
rural water supply

,corporations, mobile home parks, and _____. - THE CORRECT
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 - THE CORRECT ANSWER-e. all of the above


A federal agency impacting the water utility industry is the
_____. - THE CORRECT ANSWER-EPA


The most important federal law impacting the water utility
industry is the _____. - THE CORRECT 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. - THE CORRECT ANSWER-bacteriological


The state agency that regulates drinking water in Texas and
administers the federal Safe
Drinking Water Act is the ________. - THE CORRECT 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
________. - THE CORRECT ANSWER-health hazards


Some regional and local agencies impacting the water utility
industry are municipal utility
districts, rural water supply corporations, drainage districts,
________, groundwater
conservation districts, and subsidence districts. - THE CORRECT
ANSWER-river authorities



Public relations (PR) is the relationship between YOU, the
water utility employee, and the _____. - THE CORRECT ANSWER-
customer


The keys to good customer relations are (1) everything the
utility does is PR, (2) customers
are entitled to courteous treatment, (3) every employee is a PR
person. (true/false) - THE CORRECT ANSWER-true


Meter readers are the persons with whom customers have the
least contact. (true/false) - THE CORRECT ANSWER-false (meter
readers often have the most contact)


Meter readers can be ambassadors of goodwill. (true/false) - THE
CORRECT ANSWER-true

, Maintenance crews can warn customers of service interruptions
and provide signs and
barriers to protect the public. (true/false) - THE CORRECT ANSWER-
true


The plant operator is responsible for treating the water to
assure it is safe to drink and use. (true/false) - THE CORRECT
ANSWER-true



Water bills should be accurate, itemized, and neat, and
payment should be optional. (true/false) - THE CORRECT ANSWER-
false (payment not optional)


All employees should be kept informed of utility plans and
policies. (true/false) - THE CORRECT ANSWER-true


Complaints should be treated as "griping" and investigated as a
last priority. (true/false) - THE CORRECT ANSWER-false


In small water systems the operator is often _____, _____
and _____. - THE CORRECT ANSWER-meter reader, repair crew and
pump operator


"Stuffers" sent to customers in billing statements may contain
________.
a. departments to call for service
b. explanations of utility policy
c. a history of the utility