Class D Water Operator License Exam
TCEQ questions and answers
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%)
-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
-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
-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. - -
True
-An alkaline or basic solution has a pH greater than ____. - -7
-T/F: The terms mg/L and ppm are not interchangeable. - -False (they are interchangeable)
-Suspended solids in water cannot be filtered out. - -False (they can)
-Solids, water hardness, pH and gases are ____ characteristics. - -Chemical
-T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water molecule. - -True
-T/F: The State recommends a water pH of less than 7 to be maintained at all time. - -False (The
state recommends a pH slightly greater than 7 and for the water to be non-corrosive.)
-T/F: Taste and odor can come from organisms such as vegetation, bacteria, and algae, and from
certain chemicals and metals. - -True
-T/F: The deeper the well, the warmer the water. - -True
TCEQ questions and answers
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%)
-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
-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
-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. - -
True
-An alkaline or basic solution has a pH greater than ____. - -7
-T/F: The terms mg/L and ppm are not interchangeable. - -False (they are interchangeable)
-Suspended solids in water cannot be filtered out. - -False (they can)
-Solids, water hardness, pH and gases are ____ characteristics. - -Chemical
-T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water molecule. - -True
-T/F: The State recommends a water pH of less than 7 to be maintained at all time. - -False (The
state recommends a pH slightly greater than 7 and for the water to be non-corrosive.)
-T/F: Taste and odor can come from organisms such as vegetation, bacteria, and algae, and from
certain chemicals and metals. - -True
-T/F: The deeper the well, the warmer the water. - -True
