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Class D Water Operator License Exam TCEQ with Questions & Answers.

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Class D Water Operator License Exam TCEQ with Questions & Answers.

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  • October 27, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Tceq
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Wisdoms
Class D Water Operator License Exam TCEQ with
Questions & Answers


T/F: In Texas, about 75% of all water is used for commercial, industrial, or agricultural purposes. -
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(correct answer) -True
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Water covers approximately ________ of Earth's surface. - (correct answer) -71%
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Drought is an extended period when a region receives a deficiency in its ________ water supply. -
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(correct answer) -atmospheric, ground, or surface
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T/F: Only about 1 gallon of tap water per person/day is used for drinking and cooking - (correct answer)
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-True
yi




Excluding outside water use, the average household uses about _______ gallons of water per month for
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inside use - (correct answer) -2,000
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T/F: Only 3% of all the fresh water on earth can be easily accessed for use. - (correct answer) -False
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(only 1%)
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T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the Safe Drinking Water Act
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from the EPA. - (correct answer) -True
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T/F: PWS officials should be pro-active in their approach to terrorism. - (correct answer) -True
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_________ permits the owner of a well to pump as much water as desired, even if the water is drained
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from beneath the land of others. - (correct answer) -Rule of Capture
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In Texas, agricultural water demand accounts for about ___% of the total water used. - (correct answer)
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-57%
yi




T/F: An example of a non-transient non-community PWS is a rural school. - (correct answer) -True
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Monitoring average and maximum daily water ______ enables us to plan ahead for growth. - (correct
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi



answer) -Demand
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T/F: The Safe Drinking Water Act sets standards for drinking water including physical, chemical,
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bacteriological, and radiological characteristics. - (correct answer) -True
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"Potable" means water is safe to drink and has a measurable chlorine ________. - (correct answer) -
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Residual

The plant operator is responsible for a sufficient supply of safe and ________ drinking water. - (correct
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answer) -Palatable
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T/F: The Texas State Board of Fire Insurance requires utilities that provide fire protection to have a
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minimum amount of water available based on 30 gals per person per day. - (correct answer) -False
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(130 gals per person per day)
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, T/F: The primary state regulator of water utilities is the TCEQ. - (correct answer) -True
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T/F: All community and non-transient non-community PWS, regardless of source of water, must be
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under the supervision of a licensed water works operator. - (correct answer) -True
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Meter readers bring in operating revenue and profoundly impact _____ relations. - (correct answer) -
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Public

The federal regulator of drinking water is the _____. - (correct answer) -EPA
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T/F: Duties of distribution operator include repairing leaks, making taps, flushing mains, and taking
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radiological samples. - (correct answer) -False (Repair leaks, Make taps, Flush mains, Operate pumps,
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Take *bacteriological* samples)
yi yi yi




A service area has 1000 service connections. What can we estimate the population of this service area
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to be? - (correct answer) -3,000 (multiply connections x 3)
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T/F: The State must be notified after an existing facility is changed or after construction of a new
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi



facility. - (correct answer) -False (must notify *before*)
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T/F: A Class "D" license is valid for 2 years at ground and purchase water systems with 250 connections
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or less. - (correct answer) -False (3 years)
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T/F: The physical characteristics of water are color, taste, odor, temperature, and turbidity. - (correct
yi yi yi yi yi yi yi yi yi yi yi yi yi yi



answer) -True
yi yi




An alkaline or basic solution has a pH greater than ____. - (correct answer) -7
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T/F: The terms mg/L and ppm are not interchangeable. - (correct answer) -False (they are
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interchangeable)
yi




Suspended solids in water cannot be filtered out. - (correct answer) -False (they can)
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Solids, water hardness, pH and gases are ____ characteristics. - (correct answer) -Chemical
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T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water molecule. - (correct answer) -True
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T/F: The State recommends a water pH of less than 7 to be maintained at all time. - (correct answer) -
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False (The state recommends a pH slightly greater than 7 and for the water to be non-corrosive.)
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T/F: Taste and odor can come from organisms such as vegetation, bacteria, and algae, and from certain
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chemicals and metals. - (correct answer) -True
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T/F: The deeper the well, the warmer the water. - (correct answer) -True
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T/F: The threshold odor number (TON) relates to the number of dilutions needed for the water to be
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi



tasteless. - (correct answer) -False (It reflects the number of dilutions needed for water sample to be
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi



*odorless*)
yi




One part per million or 1 mg/L means that for every ____ pounds of water there is one pound of
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material in it. - (correct answer) -1 million
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The State requires filtered water to be equal to or less than ____ turbidity units in at least 95% of the
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi



monthly samples. - (correct answer) -0.3
yi yi yi yi yi yi

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