Class D Water Operator License Exam TCEQ 100% correct

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