TCEQ Class D Water Operators License
Exam Questions With Correct Answers
100% Verified.
Water Covers _______ of the earth's Surface - Answer✔75%
Humans can only live ________ days without water - Answer✔4-5 Days
Maximum Daily Demand can be determined - Answer✔From monthly operating reports or by
multiplying 2.4 times the average daily demand on the system.
130 - Answer✔Utilities that provide fire protection have to have a minimum of ____ Gallons per
person per day
75% - Answer✔Commercial, Industrial, and Agricultural Use makes up _____ % in Texas
57% - Answer✔Agricultural use accounts for _____% of total water consumed in Texas
97% - Answer✔_____% of the total volume of water available is saltwater
1% - Answer✔3% of total volume of water available is considered fresh water. 2% is locked in
polar icecaps and glaciers. ____% of all water on earth is accessible fresh water.
Electrodialysis Reversal (EDR) - Answer✔Electrochemical separation process in which saline
water passes through alternately placed cations and anion membranes.
reverse osmosis - Answer✔A desalinization process that involves forcing salt-water through a
membrane permeable to water but not to salt
2000 - Answer✔Excluding outside use, the average household uses about _____ gallons of
water per month on inside use
True - Answer✔True or False: only about 1 gallon of tap water per person/day is used for
drinking and cooking
demand - Answer✔Monitoring average and maximum daily water _____ enables us to plan
ahead for growth.
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