CLASS D WATER OPERATOR LICENSE
EXAM TCEQ WITH QUESTIONS AND
100% CORRECT ANSWERS VERIFIED
BY EXPERT 2025 UPDATE.
T/F: In Texas, about 75% of all water is used for commercial, industrial, or agricultural
purposes.
Answer: True
Water covers approximately ________ of Earth's surface.
Answer: 71%
Drought is an extended period when a region receives a deficiency in its ________ water
supply.
Answer: atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used for drinking and cooking.
Answer: True
Excluding outside water use, the average household uses about _______ gallons of water
per month for inside use.
Answer: 2,000
T/F: Only 3% of all the fresh water on earth can be easily accessed for use.
Answer: False (only 1%)
,T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the Safe
Drinking Water Act from the EPA.
Answer: True
T/F: PWS officials should be pro-active in their approach to terrorism.
Answer: True
_________ permits the owner of a well to pump as much water as desired, even if the water
is drained from beneath the land of others.
Answer: Rule of Capture
In Texas, agricultural water demand accounts for about ___% of the total water used.
Answer: 57%
T/F: An example of a non-transient non-community PWS is a rural school.
Answer: True
Monitoring average and maximum daily water ______ enables us to plan ahead for growth.
Answer: Demand
T/F: The Safe Drinking Water Act sets standards for drinking water including physical,
chemical, bacteriological, and radiological characteristics.
Answer: True
"Potable" means water is safe to drink and has a measurable chlorine ________.
Answer: Residual
The plant operator is responsible for a sufficient supply of safe and ________ drinking
water.
Answer: 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.
Answer: False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
Answer: 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.
Answer: True
Meter readers bring in operating revenue and profoundly impact _____ relations.
Answer: Public
The federal regulator of drinking water is the _____.
Answer: EPA
T/F: Duties of distribution operator include repairing leaks, making taps, flushing mains,
and taking radiological samples.
Answer: 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?
Answer: 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.
Answer: False (must notify before)
EXAM TCEQ WITH QUESTIONS AND
100% CORRECT ANSWERS VERIFIED
BY EXPERT 2025 UPDATE.
T/F: In Texas, about 75% of all water is used for commercial, industrial, or agricultural
purposes.
Answer: True
Water covers approximately ________ of Earth's surface.
Answer: 71%
Drought is an extended period when a region receives a deficiency in its ________ water
supply.
Answer: atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used for drinking and cooking.
Answer: True
Excluding outside water use, the average household uses about _______ gallons of water
per month for inside use.
Answer: 2,000
T/F: Only 3% of all the fresh water on earth can be easily accessed for use.
Answer: False (only 1%)
,T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the Safe
Drinking Water Act from the EPA.
Answer: True
T/F: PWS officials should be pro-active in their approach to terrorism.
Answer: True
_________ permits the owner of a well to pump as much water as desired, even if the water
is drained from beneath the land of others.
Answer: Rule of Capture
In Texas, agricultural water demand accounts for about ___% of the total water used.
Answer: 57%
T/F: An example of a non-transient non-community PWS is a rural school.
Answer: True
Monitoring average and maximum daily water ______ enables us to plan ahead for growth.
Answer: Demand
T/F: The Safe Drinking Water Act sets standards for drinking water including physical,
chemical, bacteriological, and radiological characteristics.
Answer: True
"Potable" means water is safe to drink and has a measurable chlorine ________.
Answer: Residual
The plant operator is responsible for a sufficient supply of safe and ________ drinking
water.
Answer: 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.
Answer: False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
Answer: 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.
Answer: True
Meter readers bring in operating revenue and profoundly impact _____ relations.
Answer: Public
The federal regulator of drinking water is the _____.
Answer: EPA
T/F: Duties of distribution operator include repairing leaks, making taps, flushing mains,
and taking radiological samples.
Answer: 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?
Answer: 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.
Answer: False (must notify before)
