Storm drains Study guides, Class notes & Summaries

Wastewater Collector Class D License Exam Questions and Answers Already Passed Latest Updated 2024/2025 Graded A+. I & I causes hydraulic overload on wastewater lines, lift stations and the wastewater treatment plant. a. true b. false a. true I & I, (Inflow & Infiltration) causes hydraulic overload to wastewater lines, lift stations, and treatment plants. 2. When the treatment plant is overloaded, the bypassed, spilled or under–treated wastewater pollutes rivers and streams. a. true ...

Storm water shall not be drained into sewers intended for ___. A) a combined sewer system B) sanitary drainage only C) a storm drain system D) a storm sewer system b Subsoil drains shall be piped to a ___. A) storm drain B) street curb C) alley D) all of the above d The perimeter of buildings having basements, cellars, or crawl spaces or floors below grade shall be provided with ___. A) backwater valves B) seepage pits C) subsoil drains D) leech lines c All ra...

How many percent of the total sewage solids is organic and subject to rotting. correct answer: 50% TRUE OR FALSE : The minimum depth for septic tank is 1.20m correct answer: TRUE TRUE OR FALSE : No septic tank shall be installed within under a house. correct answer: TRUE TRUE OR FALSE : Septic tank should be located not less than 15m away from potable water to prevent contamination. correct answer: TRUE What do you call the drain from the trap of a fixture to the junction of ...

PDD Study Guide 2024 Exam Questions & Answers 100% CORRECT Aboveground drainage - ANSWERSpervious paving, sheet flow, gutters built into roadways and parking areas, ground swales as part of the landscaping, and channels to manage runoff and direct it appropriately Underground drainage - ANSWERSperforated drains and enclosed storm sewers to carry the runoff from the site, either to a municipal storm sewer system or to a natural drainage outlet such as a river. Several methods of drainage ...

Preliminary Treatment - the 1st stage of sewage treatment where large debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, where the flow of water is slowed enough to allow for sedimentation. What stage of treatment is grit removal usually accomplished in? - preliminary treatment Rotating Biological Contactor - a type of biological secondary treatment process How are protozoa (cause of amoebic dysentery) destroyed? - disinfection Other than stream d...

California Water Distribution Grade 3 Study Guide Questions And Answers 100% Solved R.P.P.A. Reduced pressure principal assembly. Backflow prevention for back siphonage and back pressure. American Public Works Association color codes. White,pink,red,yellow,orange, blue, purple and green White=proposed excavation Pink=temporary survey markings red=electric power yellow=gas,oil and steam orange=communications(phone/cable) blue=water purple=reclaimed water green=sewer and storm drai...

Erosion - Answer-process in which, by the actions of wind and/or water, soil particles detached and transported Sediment - Answer-eroded material suspended in wind or water Sedimentation - Answer-deposition of eroded material Types of Erosion - Answer-splash sheet rill gully channel Splash erosion - Answer-raindrop impact energy is enough to dislodge surface sediments sheet erosion - Answer-caused by rain splash detaching soil particles lifting them up and removing them by shallow "s...

Storm water shall not be drained into sewers intended for ___________________. a. a combined sewer system b. sanitary drainage only c. a storm drain system d. a storm sewer system B Subsoil drains shall be piped to a ______________________. a. storm drain b. street curb c. alley d. all of the above D The perimeter of buildings having basements, cellars, or crawl spaces or floors below grade shall be provided with ____________________. a. backwater valves b. seepage pit...

Storm water shall not be drained into sewers intended for ____________________________________. a. a combined sewer system b. sanitary drainage only c. a storm drain system d. a storm sewer system B Subsoil drains shall be piped to a __________________________. a. storm drain b. street curb c. alley d. all of the above D The perimeter of buildings having basements, cellars, or crawl spaces or floors below grade shall be provided with ____________________________. a. back...

TX Class C Wastewater Treatment License (TCEQ) 2024 Preliminary Treatment - CORRECT ANSWER-the 1st stage of sewage treatment where large debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, where the flow of water is slowed enough to allow for sedimentation. What stage of treatment is grit removal usually accomplished in? - CORRECT ANSWER-preliminary treatment Rotating Biological Contactor - CORRECT ANSWER-a type of biological secondary treatment p...