Texas Class D Water Distribution Licensing Exam Study Guide (2024) || Questions & Answers (Expert Rated A+)

Texas Class D Water Distribution Licensing Exam Study Guide (2024) || Questions & Answers (Expert Rated A+) Texas Class D Water Distribution Licensing Exam Study Guide (2024) || Questions & Answers (Expert Rated A+) What is the name of the State Agency responsible for enforcing the Safe Drinking Water Act? - ANSWER - Texas Commission on Environmental Quality what Minerals are associated with water hardness? - ANSWER - Calcium and magnesium A public water system MUST at all times provide? A. Adequate quantity of water B. Adequate water pressure c. Adequate disinfection D. All of the above - ANSWER - D. All of the above A Source of groundwater would be? - ANSWER - Aquifer Fecal Coliform organisms sometimes found in water supplies are an indication that? A. The water Supply is Contaminated B. Harmful Bacteria may be present C. Possible pathogenic organisms are in the water D. The water is unsuitable for drinking E. All of the above - ANSWER - E. All of the above A disease that may be spread by inadequately disinfected water is - ANSWER - Dysentery A Common Chemical used in the disinfection of a small water Supply is - ANSWER - Calcium hypochlorite A public water Supply system should maintain a system residual pressure of 20 psi and a minimum normal operating pressure of _____ - ANSWER - 35 psi The amount of chlorine in mg/L that is used by reacting with iron, organics or bacteria is called - ANSWER - Demand The MOST important treatment in water is - ANSWER - Disinfection Which of the following would be considered part(s) of a hypo-chlorinator system - ANSWER - Solution feed pump According to state requirements all public water supply wells shall be provided with a raised concrete sealing block screen vents and - ANSWER - Flow Measuring Device One method to determine the drawdown of a water well is - ANSWER - An air line