Awwa water distribution - Study guides, Class notes & Summaries

AWWA Water Operator Certification Exam Prep Questions and Answers What is the most common disinfection by product when adding chlorine to water containing natural and inorganic matter? - ANSWER-Chloroform What will most probably cause taste and odors, slime, and filter clogging? - ANSWER-Blue-green Algae Why can rapid sand filters handle higher filtration rates compared to slow sand filters? - ANSWER- Coarser sand Iron bacteria can interfere with ___________ because the bacteria produce ...

AWWA Operator Certification Study Guide 4thED. - Water Treatment Sample Test 3 Questions and Answers The concentration of chlorine that is immediately dangerous to health and life (IDHL) is _____ parts per million. 30ppm The common rate of operation of a rapid sand filter is considered to be _____ gallons per square foot per minute. 2 to 6 An operator inspects valves to determine that they are holding properly by... a pressure test Trihalomethane (THM) precursors are ___...

AWWA ABC Water Distribution Grades 1 & 2| 143 QUESTIONS| WITH COMPLETE SOLUTIONS

Backflow Questions and Answers 100% Accurate What is the primary consideration when deciding whether to install a reduced pressure or a double check valve assembly? Degree of hazard. A cross connection is an actual or potential connection that could allow backflow to occur between a potable water system and a piping system that contains potentially unsafe Water,steam,gases,chemicals, or unknown substances. What are two types of back flow conditions? Backpressure and backsiphona...

A licensed irrigator must renew his/her every ______ years. correct answers three ________, _________, and _________ are the goals of the TCEQ. correct answers Enforcement, Water Quality, Waste management Licensed ______ are responsible for obtaining permits and inspections. correct answers irrigators _______________ can install an irrigation system correct answers Both ( Licensed Irrigator and Technician ) A TECHNICIAN can alter the irrigation design only when he/she ___________. correct...

cross connection practice exam questions and answers 2024 The Check Valves of a Double Check Valve Assembly must be: Internally Loaded Which of the following backflow preventers offers effective protection under backsiphonage conditions only and can also be subjected to constant full line pressure? Spill Resistant Type Pressure Vacuum Breaker To appropriately resolve a cross connection contamination incident, a qualified tester or specialist should: Identify and isolate the sou...

AWWA Questions pt7 Questions and Answers 2024 when the specific oxygen uptake rate sour drop dramatically, what are possible causes? it is possible indication of toxics in the aeration basin what is the significance of a bulk clarifier hydraulic loading rate, such as 2,000 gpd/ft^2? it is a measure of the net fluid upward velocity that controls the speed of MLSS settling 0:24 / 0:30 which of the following chemicals will not remove phosphorus? calcium hydroxide aluminum su...

The number of monthly distributions system bacteriologiacal samples required is - ANSWER-Based on the population served What is the maximum contaminant level for total trihalomethanes (TTHM) in the united States? - ANSWER-0.080 mg/L Under the Surface Water Treatment Rule, disinfection residuals must be collected at the same location in the distribution system as - ANSWER-coliform samples Iron can cause "red water" and thus customer complaints when its concentration is above its second...

Class C Water Operator Texas Part 1 Exam Questions and Complete Solutions T/F The hydrological cycle is the natural exchange of water between the ocean and the atmosphere - Answer: True T/F 25% of the earths water is surface water, but only a small portion can be tapped by wells - Answer: Flase T/F Groundwater hydrology is the science concerned with the occurrence, distribution, and movement of water above the earths surface - Answer: False T/F Groundwater is the soil water that coll...

AWWA ABC Water Distribution Grades 1 & 2 Questions and Answers A+ GRADE 2024AWWA ABC Water Distribution Grades 1 & 2 Questions and Answers A+ GRADE 2024AWWA ABC Water Distribution Grades 1 & 2 Questions and Answers A+ GRADE 2024AWWA ABC Water Distribution Grades 1 & 2 Questions and Answers A+ GRADE 2024