Water distributio - Study guides, Class notes & Summaries

What term is used when a water utility divides its total operating expenses into the total revenue? a.) Debt ratio b.) Operating ratio c.) Credit ratio d.) Coverage ratio b.) Operating ratio Under the requirements of the Safe Drinking Water Act, it is the duty of the water purveyor to deliver potable water of proper quality only as far as the: a.) Entry point of the distribution system b.) Customer's curb box and service connection c.) Consumer's tap inside the home d.) Furthest wate...

A 6-in. pipeline needs to be flushed. If the desired length of pipeline to be flushed is 316 ft, how many minutes will it take to flush the line at 31 gpm? a. 10 minutes b. 15 minutes c. 30 minutes d. 60 minutes - ANSWER Answer: b. 15 minutes What is the area of a trench that is 22.4 ft long and 3.3 ft wide? a. 26 sq ft b. 74 sq ft c. 143 sq ft d. 187 sq ft - ANSWER Answer: b. 74 sq ft Which of the following is typically associated with trihalomethanes? a. High levels of car...

What is static head? A. The total equivalent height that a pump lifts water, including friction loss B. Friction loss C. The vertical distance between a reference point to the water surface, when the water is not moving. D. The horizontal distance between a reference point to the water surface - ANSWER C. The vertical distance between a reference point to the water surface, when the water is not moving. If at least 40 samples per month are collected from a public water system , what is th...

Water Distribution Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test

CDPH Water Distribution Grade 2 Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test

D2 Water Distribution Test Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test

Water Distribution - Additional Sample Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test

Back siphonage - ANSWER backflow due to negative or reduced pressure in water system. occurs during low pressure events such as a line leak Reverse flow caused by a loss of supply pressure Back Pressure - ANSWER Is caused when a potable water system is connected to a non potable supply operating under a higher pressure that pushes contaminated liquid back into the public water system Back Pressure - ANSWER Occurs when the pressure of the connected system exceeds the pressure of the drin...

What is the general definition of an ion? An _________ with a positive or negative charge - Atom A continuous positive pressure in a distribution system is essential for preventing what event? - Backflow Event _____________ water pressure must be maintained to ensure adequate customer service during peak flow periods. However, minimum positive pressure must be maintained in mains to protect against backflow or backsiphonage from cross-connections. - Minimum Name the most common CAUSE for publ...