a. high sludge production Pools with crystal clear water look inviti Use LEFT and RIGHT arrow keys to navigate between flashcards; Use UP and DOWN arrow keys to flip the card; audio not yet available for this language. d. acids and alkalies, Activated Sludge: b. toxic gases Sludge Digestion & Solids Handling: a. BOD 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. Water Environment Federation Bookstore. Where is the best place to collect scum from wastewater plants that use aerobic digesters? Jake The next Stage of treatment is the Secondary Treatment, or Biological. d. DO. (3) reddish brown, Activated Sludge: DO Disinfection: ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. Study Guide . a. several times a day What modified activated sludge process does not require primary treatment? VIII. d. organisms available to treat the wastes, Activated Sludge: Wastewater sources & characteristics: .Rd5g7JmL4Fdk-aZi1-U_V{transition:all .1s linear 0s}._2TMXtA984ePtHXMkOpHNQm{font-size:16px;font-weight:500;line-height:20px;margin-bottom:4px}.CneW1mCG4WJXxJbZl5tzH{border-top:1px solid var(--newRedditTheme-line);margin-top:16px;padding-top:16px}._11ARF4IQO4h3HeKPpPg0xb{transition:all .1s linear 0s;display:none;fill:var(--newCommunityTheme-button);height:16px;width:16px;vertical-align:middle;margin-bottom:2px;margin-left:4px;cursor:pointer}._1I3N-uBrbZH-ywcmCnwv_B:hover ._11ARF4IQO4h3HeKPpPg0xb{display:inline-block}._2IvhQwkgv_7K0Q3R0695Cs{border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._2IvhQwkgv_7K0Q3R0695Cs:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B{transition:all .1s linear 0s;border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._1I3N-uBrbZH-ywcmCnwv_B:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B.IeceazVNz_gGZfKXub0ak,._1I3N-uBrbZH-ywcmCnwv_B:hover{border:1px solid var(--newCommunityTheme-button)}._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk{margin-top:25px;left:-9px}._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:focus-within,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:hover{transition:all .1s linear 0s;border:none;padding:8px 8px 0}._25yWxLGH4C6j26OKFx8kD5{display:inline}._2YsVWIEj0doZMxreeY6iDG{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-metaText);display:-ms-flexbox;display:flex;padding:4px 6px}._1hFCAcL4_gkyWN0KM96zgg{color:var(--newCommunityTheme-button);margin-right:8px;margin-left:auto;color:var(--newCommunityTheme-errorText)}._1hFCAcL4_gkyWN0KM96zgg,._1dF0IdghIrnqkJiUxfswxd{font-size:12px;font-weight:700;line-height:16px;cursor:pointer;-ms-flex-item-align:end;align-self:flex-end;-webkit-user-select:none;-ms-user-select:none;user-select:none}._1dF0IdghIrnqkJiUxfswxd{color:var(--newCommunityTheme-button)}._3VGrhUu842I3acqBMCoSAq{font-weight:700;color:#ff4500;text-transform:uppercase;margin-right:4px}._3VGrhUu842I3acqBMCoSAq,.edyFgPHILhf5OLH2vk-tk{font-size:12px;line-height:16px}.edyFgPHILhf5OLH2vk-tk{font-weight:400;-ms-flex-preferred-size:100%;flex-basis:100%;margin-bottom:4px;color:var(--newCommunityTheme-metaText)}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX{margin-top:6px}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._3MAHaXXXXi9Xrmc_oMPTdP{margin-top:4px} d. 100:12:5, Trickling Filters: Proper flow velocity through a grit channel is indicated when the grit being removed contains Wastewater treatment systems protect public health and the environment only if they are being properly operated and maintained. Residual Solids Management: Typically what average percent of total solids in a domestic wastewater, both dissolved and suspended, are inorganics. a. potassium Sludge Digestion & Solids Handling: Safety: Activated Sludge: Keyword Glossary. Wastewater Certification practice tests, flashcards, study guides, and more. Sedimentation and Flotation: c. secondary sludge What is the optimum temperature range of mesophile bacteria in anaerobic digestion? How much of the solids should be wasted each week in the summer form a package wastewater treatment plant for the best quality? c. tapered aeration Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. -high surface turbulence. Rotating Biological Contactors: Wastewater Solids Processing: The standard for gases has a density of. A pond that contains oxygen in its upper layers and lacks oxygen in the bottom layer is classified as, Waste Treatment Ponds: During the exam, . STUDY STRATEGY 10-13 . Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. d. activated sludge, Wastewater Treatment Facilities: d. plunger feeder, Solids removal from secondary effluent: which one of the following wastewater solids would most likely never end up on a dedicated land disposal (DLD) site? Low-temperature water can be compensated for when using alum by______, Basic Chemistry: The clarity of a trickling filter's effluent is considered good when the "Secchi" disk can be read at a level of___ft, Basic Chemistry: H}Wr8[$HB$"&.ZO*JJ4p8(To>|H^sGGrB*G*f%G. What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: %PDF-1.4 % Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? What is the optimum temperature for digester substances? 0000001315 00000 n Three Aeration Tanks, Each @ 100 ft. Long, 25 ft. The program suggests purchasing their books from Sacramento. In general, secondary sludges: Study key C amp D IN gov. ._1aTW4bdYQHgSZJe7BF2-XV{display:-ms-grid;display:grid;-ms-grid-columns:auto auto 42px;grid-template-columns:auto auto 42px;column-gap:12px}._3b9utyKN3e_kzVZ5ngPqAu,._21RLQh5PvUhC6vOKoFeHUP{font-size:16px;font-weight:500;line-height:20px}._21RLQh5PvUhC6vOKoFeHUP:before{content:"";margin-right:4px;color:#46d160}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{display:inline-block;word-break:break-word}._22W-auD0n8kTKDVe0vWuyK{font-weight:500}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{font-size:12px;line-height:16px}._244EzVTQLL3kMNnB03VmxK{font-weight:400;color:var(--newCommunityTheme-metaText)}._2xkErp6B3LSS13jtzdNJzO{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;margin-top:13px;margin-bottom:2px}._2xkErp6B3LSS13jtzdNJzO ._22W-auD0n8kTKDVe0vWuyK{font-size:12px;font-weight:400;line-height:16px;margin-right:4px;margin-left:4px;color:var(--newCommunityTheme-actionIcon)}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y{border-radius:4px;box-sizing:border-box;height:21px;width:21px}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(2),._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(3){margin-left:-9px} What is the most accurate measure of the organisms present in an aerator for treating incoming wastes? Safety: Secondary Treatment: Unfortunately my state uses the ABC program from California to acquire licenses. What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? Every test is created from a pool of possible water distribution questions. d. about the same volume as the grit being removed. d. phosphorous, Activated Sludge: How far out from the water's edge should waste pond samples be collected? return sludge/raw wastewater, Activated Sludge: The City of Prattville is offering a new wastewater certification exam preparation course. No worry. b. pH Maintenance: Introduction DO WEF/ABC/C 2 EP Collection Systems Operators' Guide to Preparing for the Certification Examination. d. activated sludge. Class I - Wastewater Class I - Operator Class I - Water Distribution Class II - Operator Class II - Water Distribution Class III - Water Treatment Class III - Water Distribution Class IV - Water Distribution Learning Excel Workbook Basics Function Basics More Training on Microsoft's website Puzzle Puzzle: KRWA is going to PIECES! d. hydrochloric acid. /Filter /FlateDecode Wastewater Solids Processing: Campus Box 1075 - Southern Illinois Univ. Its a 2 year old post and have then since passed my 3 and ready to take my 4 next year. Sample questions are provided for Classes I, II, III, and IV wastewater operator certification exams, so you can study the questions that are specific to your grade level. If this is your first exam attempt, a short history of the current exam development should be of interest. Mixed liquor is a combination of what 3 things? Class 3 & 4 Pre-Test Class 3 & 4 Study Guides include 2 pretests with answers, Class 3 size plants general knowledge information, and Class 3 & 4 Math questions. ._3Z6MIaeww5ZxzFqWHAEUxa{margin-top:8px}._3Z6MIaeww5ZxzFqWHAEUxa ._3EpRuHW1VpLFcj-lugsvP_{color:inherit}._3Z6MIaeww5ZxzFqWHAEUxa svg._31U86fGhtxsxdGmOUf3KOM{color:inherit;fill:inherit;padding-right:8px}._3Z6MIaeww5ZxzFqWHAEUxa ._2mk9m3mkUAeEGtGQLNCVsJ{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:18px;color:inherit} a. hair What is the expected range for the removal of settleable solids from a primary clarifier? Statistics from 2019 HERE. Secondary Treatment: Residual Solids Management: .s5ap8yh1b4ZfwxvHizW3f{color:var(--newCommunityTheme-metaText);padding-top:5px}.s5ap8yh1b4ZfwxvHizW3f._19JhaP1slDQqu2XgT3vVS0{color:#ea0027} Final DO: 5.9. Took the class III exam from the ABC program yesterday and felt very under knowledge. This course compiles 14 individual lessons into one course to make 16 hours. The Wastewater Practice exam is temporarily out of service for upgrades. Tightened down to a drip. Rotating Biological Contactors: The most important factor in the high-rate process of anaerobic digestion is: a. clarifier Enhanced Biological (Nutrient) Control: Which one of the following is the best type of valve to use to dampen a water hammer? Rotating biological contactors have all the following advantages except: Microorganisms that are methane fermenters will only produce in the pH range of, Sludge Digestion & Solids Handling: Wastewater sources & characteristics: a.complete mix aeration Past Exam Results. If power to a Test Center is temporarily interrupted during an administration, your examination will be restarted. WasteWater Operator Certification, Grade 2 Learn with flashcards, games, and more for free. ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} a. sand drying beds b. NO2 What does the wastewater industry call sludge that is only partially digested? (22.60 g 21.03 g) (21.75 g 21.03 g), Click to share on LinkedIn (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email this to a friend (Opens in new window), Practice Question: Temperature Affect on Denitrification, Practice Question: Water System Evaluation. @keyframes _1tIZttmhLdrIGrB-6VvZcT{0%{opacity:0}to{opacity:1}}._3uK2I0hi3JFTKnMUFHD2Pd,.HQ2VJViRjokXpRbJzPvvc{--infoTextTooltip-overflow-left:0px;font-size:12px;font-weight:500;line-height:16px;padding:3px 9px;position:absolute;border-radius:4px;margin-top:-6px;background:#000;color:#fff;animation:_1tIZttmhLdrIGrB-6VvZcT .5s step-end;z-index:100;white-space:pre-wrap}._3uK2I0hi3JFTKnMUFHD2Pd:after,.HQ2VJViRjokXpRbJzPvvc:after{content:"";position:absolute;top:100%;left:calc(50% - 4px - var(--infoTextTooltip-overflow-left));width:0;height:0;border-top:3px solid #000;border-left:4px solid transparent;border-right:4px solid transparent}._3uK2I0hi3JFTKnMUFHD2Pd{margin-top:6px}._3uK2I0hi3JFTKnMUFHD2Pd:after{border-bottom:3px solid #000;border-top:none;bottom:100%;top:auto} What document provides a profile of hazardous substances and/or mixtures? 10 PPM. Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. a. gray 100:2:1 The water quality parameters of pH and alkalinity and the presence of toxic substances can impact plant operation, because of their b. F/M by coe1069, Test 2 - banking. a. nitric acid c. reduce the number of weeds ._1sDtEhccxFpHDn2RUhxmSq{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:18px;display:-ms-flexbox;display:flex;-ms-flex-flow:row nowrap;flex-flow:row nowrap}._1d4NeAxWOiy0JPz7aXRI64{color:var(--newCommunityTheme-metaText)}.icon._3tMM22A0evCEmrIk-8z4zO{margin:-2px 8px 0 0} Test yourself before taking your state exam. 10 7. 0000045118 00000 n a. Basic Chemistry: The best operation performance for an anaerobic digester is when it is feed excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: c. DO What is the ultimate measure of effective chlorination? You have created 2 folders. Approved Environment, Inc. offers 50 online continuing education (CE) courses for water and wastewater. b. food entering the process (solids) Waste Treatment Ponds: c. acids and alkalies %PDF-1.2 ._2Gt13AX94UlLxkluAMsZqP{background-position:50%;background-repeat:no-repeat;background-size:contain;position:relative;display:inline-block} The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. 58 0 obj << /Linearized 1 /O 60 /H [ 700 326 ] /L 100420 /E 48024 /N 15 /T 99142 >> endobj xref 58 13 0000000016 00000 n Collection Class 3; Collection Class 4 - most advanced level Small wastewater system operators oversee wastewater systems serving fewer than 3,300 persons. b. using masking agents the floating cover on an anaerobic should be inspected how often? This course includes the following lessons: System Design and Layout, Distribution Piping, Water Storage, Fire Hydrants and Valves, Water Meters, Pumps and Motors, Cross-Connection Control, Disinfection, Corrosion Control, Water Quality, Water Main Installation and Backfilling, Safety, Regulations, Hydraulics Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. Is the following substances likely to serve as an oxidant or a reductant: A scuba diver wears a diving mask with a face plate that bulges outward with a radius of curvature of 0.5m0.5 \mathrm{~m}0.5m. There is thus a convex spherical surface between the water and the air in the mask. Sludge Digestion & Solids Handling: d. organic toxicants, Activated Sludge: b. gravity This test is designed to simulate the actual Wastewater exam as closely as possible. Usually, what is the % accuracy of a graduated cylinder and burette? Classes and seminars for water and Wastewater Certification. Math guides, tutorials, tips, and practice quizzes. Residual Solids Management: Sludge Digestion & Solids Handling: I passed the next time. Wastewater Collections Grade 2 Practice Test California Wastewater Collections Grade 2 Practice Test California Water and Wastewater Courses For Operator Certification. Secondary Treatment: So every time you practice you will take a unique test. The allowable voltage above or below the value stamped on a motor's nameplates is_____%, Maintenance: WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. a. increase air in aeration system feathr("sprinkle", "page_view"); Demo: Experience ABC's Computerized Exams. Activated Sludge: d. remove sludge digester, Odor Control: . The more practice exams you do, the less stress you will feel when taking the real exam. b. decrease circulation Rotating Biological Contactors: a. gravity 0000004525 00000 n When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: This class addresses all the test topics and provides the operators with all the study material necessary to prepare for the exam. c. volatile-acid-alkalinity ratio Edwardsville, IL 62026-1075 (618) 650-2030 . Sedimentation and Flotation: c. power requirements are low 0000001005 00000 n c. COD A solids treatment thickening process method would be d. incineration What would be the most probable cause for gas leaking through the pressure relief valve on the digester's roof? Questions: 26 | Attempts: 3527 | Last updated: Mar 22, 2022. 1 Study only Chapters 1 and 8 (Introduction to Wastewater Treatment, 1.1 through 1.9 and 8.3 through 8.5) of Book #1. Mar. Disinfection: Need to know criteria. typically, how often should sediment and drip traps be drained in cold water? Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: Motor insulation material comes in four classes and the are based on_______, Maintenance: How do you calibrate a chemical feed pump? If a wastewater treatment plant has four aerobic digesters operated in series, which tank will exert the highest oxygen demand?

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