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TCEQ Class D Water Operator License Exam With Solved Solutions 2024.
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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 ...

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  • May 10, 2024
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  • 2023/2024
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TCEQ Class D Water Operator License
Exam With Solved Solutions 2024.

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*)



T/F: A Class "D" license is valid for 2 years at ground and purchase water systems with 250 connections
or less. - Answer False (3 years)



T/F: The physical characteristics of water are color, taste, odor, temperature, and turbidity. - Answer
True



An alkaline or basic solution has a pH greater than ____. - Answer 7



T/F: The terms mg/L and ppm are not interchangeable. - Answer False (they are interchangeable)



Suspended solids in water cannot be filtered out. - Answer False (they can)



Solids, water hardness, pH and gases are ____ characteristics. - Answer Chemical



T/F: There are 2 hydrogen atoms and 1 oxygen atom in each water molecule. - Answer True



T/F: The State recommends a water pH of less than 7 to be maintained at all time. - Answer 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. - Answer True



T/F: The deeper the well, the warmer the water. - Answer True



T/F: The threshold odor number (TON) relates to the number of dilutions needed for the water to be
tasteless. - Answer False (It reflects the number of dilutions needed for water sample to be *odorless*)

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