ACCURACY IS GUARANTEED
Class D Water Operator License Exam TCEQ
Questions with Detailed Verified Answers for
Accuracy
T/F: In Texas, about 75% of all water is used for commercial,
industrial, or agricultural purposes.
✓✓ True
Water covers approximately ________ of Earth's surface.
✓✓ 71%
Drought is an extended period when a region receives a
deficiency in its ________ water supply.
✓✓ atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used
for drinking and cooking
✓✓ True
Excluding outside water use, the average household uses about
_______ gallons of water per month for inside use
✓✓ 2,000
T/F: Only 3% of all the fresh water on earth can be easily
accessed for use.
✓✓ False (only 1%)
, ACCURACY IS GUARANTEED
T/F: In 1978, the Texas Department of Health (TDH) assumed
primacy over the Safe Drinking Water Act from the EPA.
✓✓ True
T/F: PWS officials should be pro-active in their approach to
terrorism.
✓✓ 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.
✓✓ Rule of Capture
In Texas, agricultural water demand accounts for about ___%
of the total water used.
✓✓ 57%
T/F: An example of a non-transient non-community PWS is a
rural school.
✓✓ True
Monitoring average and maximum daily water ______
enables us to plan ahead for growth.
✓✓ Demand
, ACCURACY IS GUARANTEED
T/F: The Safe Drinking Water Act sets standards for drinking
water including physical, chemical, bacteriological, and
radiological characteristics.
✓✓ True
"Potable" means water is safe to drink and has a measurable
chlorine ________.
✓✓ Residual
The plant operator is responsible for a sufficient supply of safe
and ________ drinking water.
✓✓ 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.
✓✓ False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
✓✓ 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.
✓✓ True
, ACCURACY IS GUARANTEED
Meter readers bring in operating revenue and profoundly
impact _____ relations.
✓✓ Public
The federal regulator of drinking water is the _____.
✓✓ EPA
T/F: Duties of distribution operator include repairing leaks,
making taps, flushing mains, and taking radiological samples.
✓✓ 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?
✓✓ 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.
✓✓ 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.
✓✓ False (3 years)
T/F: The physical characteristics of water are color, taste, odor,
temperature, and turbidity.
Class D Water Operator License Exam TCEQ
Questions with Detailed Verified Answers for
Accuracy
T/F: In Texas, about 75% of all water is used for commercial,
industrial, or agricultural purposes.
✓✓ True
Water covers approximately ________ of Earth's surface.
✓✓ 71%
Drought is an extended period when a region receives a
deficiency in its ________ water supply.
✓✓ atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used
for drinking and cooking
✓✓ True
Excluding outside water use, the average household uses about
_______ gallons of water per month for inside use
✓✓ 2,000
T/F: Only 3% of all the fresh water on earth can be easily
accessed for use.
✓✓ False (only 1%)
, ACCURACY IS GUARANTEED
T/F: In 1978, the Texas Department of Health (TDH) assumed
primacy over the Safe Drinking Water Act from the EPA.
✓✓ True
T/F: PWS officials should be pro-active in their approach to
terrorism.
✓✓ 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.
✓✓ Rule of Capture
In Texas, agricultural water demand accounts for about ___%
of the total water used.
✓✓ 57%
T/F: An example of a non-transient non-community PWS is a
rural school.
✓✓ True
Monitoring average and maximum daily water ______
enables us to plan ahead for growth.
✓✓ Demand
, ACCURACY IS GUARANTEED
T/F: The Safe Drinking Water Act sets standards for drinking
water including physical, chemical, bacteriological, and
radiological characteristics.
✓✓ True
"Potable" means water is safe to drink and has a measurable
chlorine ________.
✓✓ Residual
The plant operator is responsible for a sufficient supply of safe
and ________ drinking water.
✓✓ 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.
✓✓ False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ.
✓✓ 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.
✓✓ True
, ACCURACY IS GUARANTEED
Meter readers bring in operating revenue and profoundly
impact _____ relations.
✓✓ Public
The federal regulator of drinking water is the _____.
✓✓ EPA
T/F: Duties of distribution operator include repairing leaks,
making taps, flushing mains, and taking radiological samples.
✓✓ 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?
✓✓ 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.
✓✓ 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.
✓✓ False (3 years)
T/F: The physical characteristics of water are color, taste, odor,
temperature, and turbidity.
