Class D Water Operator
License Exam TCEQ
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 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)
License Exam TCEQ
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 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)
