TCEQ Class D Water Operator License Exam | Most
Recent Exam 2026 | Actual Comprehensive
Real Exam Questions With 100% Correct
Answers | Verified Answers | Already Graded
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In Texas, agricultural water demand accounts for about ___% of the total
water used.
ANSWERS: 57%
T/F: An example of a non-transient non-community PWS is a rural school.
ANSWERS: True
Monitoring average and maximum daily water enables us to plan ahead for
growth.
ANSWERS: Demand
T/F: The Safe Drinking Water Act sets standards for drinking water
including physical, chemical, bacteriological, and radiological
characteristics.
ANSWERS: True
,"Potable" means water is safe to drink and has a measurable chlorine _.
ANSWERS: Residual
The plant operator is responsible for a sufficient supply of safe and
________ drinking water.
ANSWERS: Palatable
T/F: The Texas State Board of Fire Insurance requires utilities that provide
fire protection to have a minimum amount of water available based on 30
gals per person per day.
ANSWERS: False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
ANSWERS: True
T/F: All community and non-transient non-community PWS, regardless
of source of water, must be under the supervision of a licensed water
works operator.
ANSWERS: True
Meter readers bring in operating revenue and profoundly impact
_____________________________________________________________ relations.
ANSWERS: Public
,The federal regulator of drinking water is the _.
ANSWERS: EPA
T/F: Duties of distribution operator include repairing leaks, making taps,
flushing mains, and taking radiological samples.
ANSWERS: False (Repair leaks, Make taps, Flush mains, Operate pumps, Take
bacteriological
samples)
A service area has 1000 service connections. What can we estimate the
population of this service area to be?
ANSWERS: 3,000 (multiply connections x 3)
T/F: The State must be notified after an existing facility is changed or after
construction of a new facility.
ANSWERS: False (must notify before)
T/F: A Class "D" license is valid for 2 years at ground and purchase water
systems with 250 connections or less.
ANSWERS: False (3 years)
T/F: The physical characteristics of water are color, taste, odor,
temperature, and turbidity.
ANSWERS: True
, An alkaline or basic solution has a pH greater than ____.
ANSWERS: 7
T/F: The terms mg/L and ppm are not interchangeable.
ANSWERS: False (they are interchangeable)
Suspended solids in water cannot be filtered out.
ANSWERS: False (they can)
Solids, water hardness, pH and gases are characteristics.
ANSWERS: Chemical
T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water
molecule.
ANSWERS: True
T/F: The State recommends a water pH of less than 7 to be maintained at all
time.
ANSWERS: False (The state recommends a pH slightly greater than 7 and
for the water to be non-corrosive.)
Recent Exam 2026 | Actual Comprehensive
Real Exam Questions With 100% Correct
Answers | Verified Answers | Already Graded
A+ | Guaranteed Success!!
In Texas, agricultural water demand accounts for about ___% of the total
water used.
ANSWERS: 57%
T/F: An example of a non-transient non-community PWS is a rural school.
ANSWERS: True
Monitoring average and maximum daily water enables us to plan ahead for
growth.
ANSWERS: Demand
T/F: The Safe Drinking Water Act sets standards for drinking water
including physical, chemical, bacteriological, and radiological
characteristics.
ANSWERS: True
,"Potable" means water is safe to drink and has a measurable chlorine _.
ANSWERS: Residual
The plant operator is responsible for a sufficient supply of safe and
________ drinking water.
ANSWERS: Palatable
T/F: The Texas State Board of Fire Insurance requires utilities that provide
fire protection to have a minimum amount of water available based on 30
gals per person per day.
ANSWERS: False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
ANSWERS: True
T/F: All community and non-transient non-community PWS, regardless
of source of water, must be under the supervision of a licensed water
works operator.
ANSWERS: True
Meter readers bring in operating revenue and profoundly impact
_____________________________________________________________ relations.
ANSWERS: Public
,The federal regulator of drinking water is the _.
ANSWERS: EPA
T/F: Duties of distribution operator include repairing leaks, making taps,
flushing mains, and taking radiological samples.
ANSWERS: False (Repair leaks, Make taps, Flush mains, Operate pumps, Take
bacteriological
samples)
A service area has 1000 service connections. What can we estimate the
population of this service area to be?
ANSWERS: 3,000 (multiply connections x 3)
T/F: The State must be notified after an existing facility is changed or after
construction of a new facility.
ANSWERS: False (must notify before)
T/F: A Class "D" license is valid for 2 years at ground and purchase water
systems with 250 connections or less.
ANSWERS: False (3 years)
T/F: The physical characteristics of water are color, taste, odor,
temperature, and turbidity.
ANSWERS: True
, An alkaline or basic solution has a pH greater than ____.
ANSWERS: 7
T/F: The terms mg/L and ppm are not interchangeable.
ANSWERS: False (they are interchangeable)
Suspended solids in water cannot be filtered out.
ANSWERS: False (they can)
Solids, water hardness, pH and gases are characteristics.
ANSWERS: Chemical
T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water
molecule.
ANSWERS: True
T/F: The State recommends a water pH of less than 7 to be maintained at all
time.
ANSWERS: False (The state recommends a pH slightly greater than 7 and
for the water to be non-corrosive.)
