The Wastewater Practice exam is temporarily out of service for upgrades. How many stages are usually present in the rotating biological contactor process? One solids treatment thickening process would be: H2SO4. Low-temperature water can be compensated for when using alum by______, Basic Chemistry: In a primary clarifier, the expected performance for removing settleable solids is 90-95% removal. $25 b. What do corbels provide in an anaerobic digester? -all blowers are running. Math the floating cover on an anaerobic should be inspected how often? (a) Where does the fish appear to be? Outline Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: b. gravity Need to know criteria. b. screenings The responses provided up to the point of interruption will be -high surface turbulence. The City of Prattville is offering a new wastewater certification exam preparation course. What is the most probable cause for excessive algae in the effluent of a wastewater pond? The current imbalance between legs of polyphase motors should never exceed____%, Maintenance: d. preaeration. ._1LHxa-yaHJwrPK8kuyv_Y4{width:100%}._1LHxa-yaHJwrPK8kuyv_Y4:hover ._31L3r0EWsU0weoMZvEJcUA{display:none}._1LHxa-yaHJwrPK8kuyv_Y4 ._31L3r0EWsU0weoMZvEJcUA,._1LHxa-yaHJwrPK8kuyv_Y4:hover ._11Zy7Yp4S1ZArNqhUQ0jZW{display:block}._1LHxa-yaHJwrPK8kuyv_Y4 ._11Zy7Yp4S1ZArNqhUQ0jZW{display:none} h=e.getElementsByTagName("head")[0]||e.getElementsByTagName("script")[0].parentNode; c. sludge digester Disinfection: a. high sludge production Chlorine disinfects water much slower at a pH around 7.0 than at a pH over 8.0. Saprophytic microorganisms are also called: Sludge Digestion & Solids Handling: !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? c. add treatment chemicals The Examination Request for Wastewater Operator Certification must be submitted for a Letter of Admission to be issued. Which one of the following species is ozone? Jake c. cyanides $32 c. $36 d. $42.50 These questions are similar to, but not the same as, the questions you are likely to encounter on your certification exam. Southern Illinois University Edwardsville is authorized to operate as a postsecondary educational institution by the Illinois . The most common pathogen identified in waterborne disease outbreaks in the United States is_______, Water and Wastewater Microbiology" How do you calibrate a chemical feed pump? 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. Another name for a waste stabilization pond is, Wastewater sources & characteristics: They all produce high volumes of wastewater. a. O2 (+3) A pond that contains algae and requires the use of compressor is classified as, Waste Treatment Ponds: d. activated sludge. Solids removal from secondary effluent: For more practice problems: https://www.waterandwastewatercourses.com/To enroll in an online course: https://courses.waterandwastewatercourses.com/Grade 1: . Residual Solids Management: 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: To go to the Class 2 & 3 Study Guide Click on above tab. Disinfection: Pool Chemistry a. reducing the number if weeds Reliability can only . The resources below are provided as an aid to students studying and practicing for their state exams as well as a helpful resource in the daily operation of a water/wastewater treatment plant. a. no organics Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. a. improve housekeeping VIII. Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). c. composting Flow Patterns. Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: When the influent load to a wastewater treatment plant changes rapidly, the best test to control purposes is The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. b. toxic gases Study Guides - Wastewater Operator Certification IEPA Topics Water Quality Wastewater Operator Certification Study Guides Exam Schedule Study Guides Class 1 Class 2 Class 3 Class 4 Operator-In-Training Class K - Industrial Collection System For more information contact: Dianne Potter at 217-782-9720 /*# sourceMappingURL=https://www.redditstatic.com/desktop2x/chunkCSS/IdCard.ea0ac1df4e6491a16d39_.css.map*/not saying the books aren't a great info source, cuz they are packed with it, but it is an overload for these tests. Water and Wastewater Microbiology" The examinations consist of multiple choice questions and essay questions designed to test your knowledge of the wastewater facilities for which you are seeking certification. Sludge Digestion & Solids Handling: f.FeathrBoomerang=r;var g=e.createElement(a), Are you saying that the questions were easier on the actual test or harder? Upgrade to Combined Grade 7 - Massachusetts Wastewater Treatment Plant Operator. d. hydrochloric acid. typically, how often should sediment and drip traps be drained in cold water? d. hydrogen sulfide. What should the initial depth of sludge from a digester be when it is placed in a sludge drying bed? The purpose of the treatment is to change the biological composition or the characteristics of the waste so that it Wastewater can be formed from domestic, industrial, agricultural, commercial activities or any combination of these. A solids treatment dewatering process method would be" Verified questions. temperature favoring the growth of a particular species of algae. d. phosphate-free surfactant, Activated Sludge: a. Safety: ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. 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 There are 22 individual lesson modules included in this course. ._38lwnrIpIyqxDfAF1iwhcV{background-color:var(--newCommunityTheme-widgetColors-lineColor);border:none;height:1px;margin:16px 0}._37coyt0h8ryIQubA7RHmUc{margin-top:12px;padding-top:12px}._2XJvPvYIEYtcS4ORsDXwa3,._2Vkdik1Q8k0lBEhhA_lRKE,.icon._2Vkdik1Q8k0lBEhhA_lRKE{border-radius:100%;box-sizing:border-box;-ms-flex:none;flex:none;margin-right:8px}._2Vkdik1Q8k0lBEhhA_lRKE,.icon._2Vkdik1Q8k0lBEhhA_lRKE{background-position:50%;background-repeat:no-repeat;background-size:100%;height:54px;width:54px;font-size:54px;line-height:54px}._2Vkdik1Q8k0lBEhhA_lRKE._1uo2TG25LvAJS3bl-u72J4,.icon._2Vkdik1Q8k0lBEhhA_lRKE._1uo2TG25LvAJS3bl-u72J4{filter:blur()}.eGjjbHtkgFc-SYka3LM3M,.icon.eGjjbHtkgFc-SYka3LM3M{border-radius:100%;box-sizing:border-box;-ms-flex:none;flex:none;margin-right:8px;background-position:50%;background-repeat:no-repeat;background-size:100%;height:36px;width:36px}.eGjjbHtkgFc-SYka3LM3M._1uo2TG25LvAJS3bl-u72J4,.icon.eGjjbHtkgFc-SYka3LM3M._1uo2TG25LvAJS3bl-u72J4{filter:blur()}._3nzVPnRRnrls4DOXO_I0fn{margin:auto 0 auto auto;padding-top:10px;vertical-align:middle}._3nzVPnRRnrls4DOXO_I0fn ._1LAmcxBaaqShJsi8RNT-Vp i{color:unset}._2bWoGvMqVhMWwhp4Pgt4LP{margin:16px 0;font-size:12px;font-weight:400;line-height:16px}.icon.tWeTbHFf02PguTEonwJD0{margin-right:4px;vertical-align:top}._2AbGMsrZJPHrLm9e-oyW1E{width:180px;text-align:center}.icon._1cB7-TWJtfCxXAqqeyVb2q{cursor:pointer;margin-left:6px;height:14px;fill:#dadada;font-size:12px;vertical-align:middle}.hpxKmfWP2ZiwdKaWpefMn{background-color:var(--newCommunityTheme-active);background-size:cover;background-image:var(--newCommunityTheme-banner-backgroundImage);background-position-y:center;background-position-x:center;background-repeat:no-repeat;border-radius:3px 3px 0 0;height:34px;margin:-12px -12px 10px}._20Kb6TX_CdnePoT8iEsls6{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;margin-bottom:8px}._20Kb6TX_CdnePoT8iEsls6>*{display:inline-block;vertical-align:middle}.t9oUK2WY0d28lhLAh3N5q{margin-top:-23px}._2KqgQ5WzoQRJqjjoznu22o{display:inline-block;-ms-flex-negative:0;flex-shrink:0;position:relative}._2D7eYuDY6cYGtybECmsxvE{-ms-flex:1 1 auto;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis}._2D7eYuDY6cYGtybECmsxvE:hover{text-decoration:underline}._19bCWnxeTjqzBElWZfIlJb{font-size:16px;font-weight:500;line-height:20px;display:inline-block}._2TC7AdkcuxFIFKRO_VWis8{margin-left:10px;margin-top:30px}._2TC7AdkcuxFIFKRO_VWis8._35WVFxUni5zeFkPk7O4iiB{margin-top:35px}._1LAmcxBaaqShJsi8RNT-Vp{padding:0 2px 0 4px;vertical-align:middle}._2BY2-wxSbNFYqAy98jWyTC{margin-top:10px}._3sGbDVmLJd_8OV8Kfl7dVv{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:21px;margin-top:8px;word-wrap:break-word}._1qiHDKK74j6hUNxM0p9ZIp{margin-top:12px}.Jy6FIGP1NvWbVjQZN7FHA,._326PJFFRv8chYfOlaEYmGt,._1eMniuqQCoYf3kOpyx83Jj,._1cDoUuVvel5B1n5wa3K507{-ms-flex-pack:center;justify-content:center;margin-top:12px;width:100%}._1eMniuqQCoYf3kOpyx83Jj{margin-bottom:8px}._2_w8DCFR-DCxgxlP1SGNq5{margin-right:4px;vertical-align:middle}._1aS-wQ7rpbcxKT0d5kjrbh{border-radius:4px;display:inline-block;padding:4px}._2cn386lOe1A_DTmBUA-qSM{border-top:1px solid var(--newCommunityTheme-widgetColors-lineColor);margin-top:10px}._2Zdkj7cQEO3zSGHGK2XnZv{display:inline-block}.wzFxUZxKK8HkWiEhs0tyE{font-size:12px;font-weight:700;line-height:16px;color:var(--newCommunityTheme-button);cursor:pointer;text-align:left;margin-top:2px}._3R24jLERJTaoRbM_vYd9v0._3R24jLERJTaoRbM_vYd9v0._3R24jLERJTaoRbM_vYd9v0{display:none}.yobE-ux_T1smVDcFMMKFv{font-size:16px;font-weight:500;line-height:20px}._1vPW2g721nsu89X6ojahiX{margin-top:12px}._pTJqhLm_UAXS5SZtLPKd{text-transform:none} 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. The small wastewater system certificate is a "hybrid" certificate, combining both wastewater treatment and wastewater collection expertise for communities that serve fewer than 3,300 persons. What is the recommended withdrawal of chlorine in pounds from a 100 or 150 lb cylinder in a 24-hr period such that freezing does not occur? Surface loading and detention time is a clarifier are directly related to: Sedimentation and Flotation: Rotating Biological Contactors: c. F/M ration Complete the test and know your score instantly. a. oils and greases What class of fire involves sodium and magnesium? Certification testing is offered as a computer-based test. Draft tube propeller mixers are subject to corrosion from____ This means that each wastewater treatment facility in Illinois is required to be operated by a wastewater operator who is certified at or above the certification level required for the treatment facility. a. increase air in aeration system Residual Solids Management: If the gas pressure in a digester is lower than normal, what is the most probable cause? VII. Sludge Digestion & Solids Handling: If power to a Test Center is temporarily interrupted during an administration, your examination will be restarted. ._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} Hb```f``d30 P9eVcrV),VA`}. WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. b. food entering the process (solids) You have created 2 folders. Final DO: 5.9. Keyword Glossary. Illinois Rural Water Association 3305 Kennedy Road; PO Box 49 Taylorville, IL 62568 Phone: 217-287-2115 Fax: 217-824-8638 Email: ilrwa@ilrwa.org c. power requirements are low ._2a172ppKObqWfRHr8eWBKV{-ms-flex-negative:0;flex-shrink:0;margin-right:8px}._39-woRduNuowN7G4JTW4I8{margin-top:12px}._136QdRzXkGKNtSQ-h1fUru{display:-ms-flexbox;display:flex;margin:8px 0;width:100%}.r51dfG6q3N-4exmkjHQg_{font-size:10px;font-weight:700;letter-spacing:.5px;line-height:12px;text-transform:uppercase;-ms-flex-pack:justify;justify-content:space-between;-ms-flex-align:center;align-items:center}.r51dfG6q3N-4exmkjHQg_,._2BnLYNBALzjH6p_ollJ-RF{display:-ms-flexbox;display:flex}._2BnLYNBALzjH6p_ollJ-RF{margin-left:auto}._1-25VxiIsZFVU88qFh-T8p{padding:0}._2nxyf8XcTi2UZsUInEAcPs._2nxyf8XcTi2UZsUInEAcPs{color:var(--newCommunityTheme-widgetColors-sidebarWidgetTextColor)} c. aerobic pond -all blowers are running. (Time of day), Waste Treatment Ponds: b. CO2 Secondary Treatment: What would be the most probable cause for gas leaking through the pressure relief valve on the digester's roof? Maintenance: If the manometer indicates the gas pressure in a digester is below normal, what would be the most probable cause? a. sand drying beds Edwardsville, IL 62026-1075 (618) 650-2030 . a. My score on the exam was a B+ for the level one, my score for other exams have been much better. Waste Treatment Ponds: Basic Chemistry: Which one of the following solids treatment methods can be classified as both stabilization and dewatering? the clarifier is hydraulically overloaded, Effluent Disposal: Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: ABC wastewater exam class III : r/Wastewater. 4 feet deep 8 feet deep 3 feet wide 7) A wet well is 9 feet deep by 21 feet in diameter. The major gas produced by aerobic decomposition is:_______. What is the solids treatment method that aerated the recycles water from the unit under pressure? d. acids and alkalies, Activated Sludge: In a small package, wastewater treatment plant, the operator should try to keep the dissolved oxygen in the aeration tank at approximately:____mg/L. Sludge Digestion & Solids Handling: Wastewater Treatment Operator Certification Exam - 4 Practice Problems Water and Wastewater Courses 6.18K subscribers Subscribe 86K views 5 years ago For practice exams:. If an activated sludge plant is hit with a high organic load, what will most like occur in the aeration tank? Which method would not be used to feed LIQUID chemicals? 1. The panel is comprised of 8 experts who The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: c. reduce the number of weeds Non -sewage: This is discharged by manufacturing processes and commercial enterprises. Wastewater Solids Processing: e. black Study Guide . Currently the Collection Systems, the Class 4, Class 3, Class 2 and the Class 1 exam have 100 questions each. d. 100:12:5, Trickling Filters: d. step aeration, Activated Sludge: What is the only acceptable breathing device to wear while handling chlorine leaks? (3) reddish brown, Activated Sludge: a. pH d. plunger feeder, Solids removal from secondary effluent: Name the solids treatment method that has a solids buildup which forms a blanket on the bottom and forces the water out due to compression? What do ballast blocks provide in anaerobic digesters? Which chemical in the following list is the strongest disinfectant? Which one of the following types of wastewater ponds listed below is not classified like the other three? the Illinois EPA requires that routine bacteria samples to be taken and analyzed how often. Activated Sludge: r.queue=[],r.loaded=1*new Date,r.version="1.0.0", Sludge Digestion & Solids Handling: I included the answers at the bottom of this page. c. 6 stages Secondary Treatment: d. 8 stages, Rotating Biological Contactors: at least two pipe diameters above the rim. They do list the books they pull info from. c. temperature Activated Sludge: a. heavy metals What type of fire extinguishers should be used on electrical fires? Sample Question. d)Test start standby pimps, motors and generators. Because water samples sometimes require repeat or backup tests, the amount of sample that should collected for samples that are preserved and transported for any particular analysis should be at least____times the amount for those analysis, Effluent Disposal: The RX Drug Company has just purchased a capsulating machine for $76,000. a. rotameter feathr("fly", "5e558ae66f594e4be753166e"); d. flotation, Wastewater Solids Processing: c. composting /Filter /FlateDecode I passed the ABC class 3 and didnt use the Sacramento books at all. The program suggests purchasing their books from Sacramento. Class 2 wastewater operator certification examination. 100:5:1 4.5 in. 0000000607 00000 n What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? worked for me on the class IV. Test 2 - banking. d. low operating costs, as they are east to run, Secondary Treatment: Sedimentation and Flotation: Sludge Digestion & Solids Handling: What is the optimum temperature range of mesophile bacteria in anaerobic digestion? b. twice per day Wastewater class 3 practice exam eXam Aswers Search Engine Submit Wastewater . name the laboratory glassware that can be used to heat liquids in an open flame? What is the difference between a weak acid and a strong acid? Which one the following types of substances is corrosive and may interfere with biological treatment b. oils and greases What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? 0000001543 00000 n d. about the same volume as the grit being removed. a. primary clarifier 14/08/2014 Process wastewater can Mr Jose 0000002075 00000 n Student Resources. Class 2 Wastewater Test Questions fullexams com. Water Treatment Certification practice tests, flashcards, study guides, and more. Safety: d. temperature. Basic Chemistry: Another name for slime growth is, Trickling Filters: Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - also, i wouldn't be worried about retesting. trailer << /Size 71 /Info 56 0 R /Root 59 0 R /Prev 99132 /ID[<188235b86438cd10632dbf081acd9545>] >> startxref 0 %%EOF 59 0 obj << /Type /Catalog /Pages 54 0 R /Metadata 57 0 R /PageLabels 52 0 R >> endobj 69 0 obj << /S 236 /L 297 /Filter /FlateDecode /Length 70 0 R >> stream .ehsOqYO6dxn_Pf9Dzwu37{margin-top:0;overflow:visible}._2pFdCpgBihIaYh9DSMWBIu{height:24px}._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu{border-radius:2px}._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu:focus,._2pFdCpgBihIaYh9DSMWBIu.uMPgOFYlCc5uvpa2Lbteu:hover{background-color:var(--newRedditTheme-navIconFaded10);outline:none}._38GxRFSqSC-Z2VLi5Xzkjy{color:var(--newCommunityTheme-actionIcon)}._2DO72U0b_6CUw3msKGrnnT{border-top:none;color:var(--newCommunityTheme-metaText);cursor:pointer;padding:8px 16px 8px 8px;text-transform:none}._2DO72U0b_6CUw3msKGrnnT:hover{background-color:#0079d3;border:none;color:var(--newCommunityTheme-body);fill:var(--newCommunityTheme-body)} how much surface area of a rotating biological contactor is immerses in the wastewater? 0000002114 00000 n The effluent from which process is called mixed liquor (TCs) that may be used to substitute for up to half of the required experience for Class 1, Class 2, and Class 3 Waterworks or Wastewater Works Operator licenses . The standard for gases has a density of. Tightened down to a drip. What is WEF? Activated Sludge Module 2 . document.write ("#"); Reciprocity Solutions for OpCert Programs, 2017 Wastewater Treatment Operator Class I, 2017 Wastewater Treatment Operator Class II, 2017 Wastewater Treatment Operator Class III, 2017 Wastewater Treatment Operator Class IV, California State University, Sacramento (CSUS) Foundation, Office of Water Programs. 2017 Wastewater Treatment Operator Formula/Conversion Table b. grit c. a biological process Equilibrium system and stress factors d. brown What is the name of the solids treatment method that maintains a certain pH for at least 2 hrs, then with the final product which can then be applied directly to land is called______. what would happen if too much sludge was added to an anaerobic digester? ._3bX7W3J0lU78fp7cayvNxx{max-width:208px;text-align:center} . Demo: Experience ABC's Computerized Exams. a. nitrate 23BIbVc^(2el!jO1gXFi!20IIew"-bRZ\Z 1mnH35_l^tE+SedZIinbz0FQ&|Y1la@YuGfrg|I-'6s @LYiFag6Td[l\* Sedimentation and Flotation: What do skirts provide in anaerobic digesters? Available to Treatment and Distribution Members. Class 4 Study Guide Wastewater Operator Certification . High suspended solids and BOD are most probably associated with which type of organisms? 0000001005 00000 n ._2FKpII1jz0h6xCAw1kQAvS{background-color:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.1),0 2px 3px 0 rgba(0,0,0,.2);transition:left .15s linear;border-radius:57%;width:57%}._2FKpII1jz0h6xCAw1kQAvS:after{content:"";padding-top:100%;display:block}._2e2g485kpErHhJQUiyvvC2{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;-ms-flex-pack:start;justify-content:flex-start;background-color:var(--newCommunityTheme-navIconFaded10);border:2px solid transparent;border-radius:100px;cursor:pointer;position:relative;width:35px;transition:border-color .15s linear,background-color .15s linear}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D{background-color:var(--newRedditTheme-navIconFaded10)}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D._1L5kUnhRYhUJ4TkMbOTKkI{background-color:var(--newRedditTheme-active)}._2e2g485kpErHhJQUiyvvC2._3kUvbpMbR21zJBboDdBH7D._1L5kUnhRYhUJ4TkMbOTKkI._3clF3xRMqSWmoBQpXv8U5z{background-color:var(--newRedditTheme-buttonAlpha10)}._2e2g485kpErHhJQUiyvvC2._1asGWL2_XadHoBuUlNArOq{border-width:2.25px;height:24px;width:37.5px}._2e2g485kpErHhJQUiyvvC2._1asGWL2_XadHoBuUlNArOq ._2FKpII1jz0h6xCAw1kQAvS{height:19.5px;width:19.5px}._2e2g485kpErHhJQUiyvvC2._1hku5xiXsbqzLmszstPyR3{border-width:3px;height:32px;width:50px}._2e2g485kpErHhJQUiyvvC2._1hku5xiXsbqzLmszstPyR3 ._2FKpII1jz0h6xCAw1kQAvS{height:26px;width:26px}._2e2g485kpErHhJQUiyvvC2._10hZCcuqkss2sf5UbBMCSD{border-width:3.75px;height:40px;width:62.5px}._2e2g485kpErHhJQUiyvvC2._10hZCcuqkss2sf5UbBMCSD ._2FKpII1jz0h6xCAw1kQAvS{height:32.5px;width:32.5px}._2e2g485kpErHhJQUiyvvC2._1fCdbQCDv6tiX242k80-LO{border-width:4.5px;height:48px;width:75px}._2e2g485kpErHhJQUiyvvC2._1fCdbQCDv6tiX242k80-LO ._2FKpII1jz0h6xCAw1kQAvS{height:39px;width:39px}._2e2g485kpErHhJQUiyvvC2._2Jp5Pv4tgpAsTcnUzTsXgO{border-width:5.25px;height:56px;width:87.5px}._2e2g485kpErHhJQUiyvvC2._2Jp5Pv4tgpAsTcnUzTsXgO ._2FKpII1jz0h6xCAw1kQAvS{height:45.5px;width:45.5px}._2e2g485kpErHhJQUiyvvC2._1L5kUnhRYhUJ4TkMbOTKkI{-ms-flex-pack:end;justify-content:flex-end;background-color:var(--newCommunityTheme-active)}._2e2g485kpErHhJQUiyvvC2._3clF3xRMqSWmoBQpXv8U5z{cursor:default}._2e2g485kpErHhJQUiyvvC2._3clF3xRMqSWmoBQpXv8U5z ._2FKpII1jz0h6xCAw1kQAvS{box-shadow:none}._2e2g485kpErHhJQUiyvvC2._1L5kUnhRYhUJ4TkMbOTKkI._3clF3xRMqSWmoBQpXv8U5z{background-color:var(--newCommunityTheme-buttonAlpha10)} negative pole of an electrolytic cell or system, Unless water cooled, the operating temperature of a mechanical seal in a pump should never exceed. Test takers are allowed three hours to complete the exam. Rotating Biological Contactors: The water quality parameters of pH and alkalinity and the presence of toxic substances can impact plant operation, because of their What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? they prevent the cover from scraping the sidewall. If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? c. trisodium phosphate Wastewater Collection Practice Test #3 Page 6 of 26 9) Sewer "A" has 106,000 people at 95 GPCD. 2,380 Gal./Min. d. activated sludge, Wastewater Treatment Facilities: Sedimentation and Flotation: What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? d. stabilization, Wastewater Solids Processing: b. nitrogen 2019 Association of Boards of Certification. The last stage is the treatment of RMW. TABLE OF CONTENTS . Stabilization Ponds Operations Manual USEPA 430/9-77-012 Available through: a. detergent which one of the following wastewater solids would most likely never end up on a dedicated land disposal (DLD) site? WasteWater Operator Certification, Grade 2 Learn with flashcards, games, and more for free. What is the expected range for the removal of settleable solids from a primary clarifier? c. rotating feeder -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. d. flooding the filter, Trickling Filters: When is the pH in a waste pond the highest? a. incinerated material When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? The wastewater operator certification program is a mandatory program. Questions: 26 | Attempts: 3527 | Last updated: Mar 22, 2022. STUDY STRATEGY 10-13 . a. screw feeder PRACTICE EXAM 13-20 . a. nitric acid Which type of feeder would most likely feed clear solutions? Maintenance: Each question has been validated through a process of panel review. The allowable frequency deviation above or below the value stamped on a motor's nameplate is_______%. USE OF CALCULATORS ON THE EXAM 10 . When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: Southern Illinois Univ. within 1 inch from the top. %PDF-1.2 c. once per day The recommended minimum depth for a waste pond is". Waste Treatment Ponds: Find out how you can intelligently organize your Flashcards. The solids treatment method usually dewaters solids by mixing them with a bulking agent and then waiting for biological stabilization to occur? Wastewater Works Operator Class 4 Wastewater Treatment Operator Class I - 2017 Edition Wastewater Treatment Wastewater Treatment, Collection, Industrial . Along with the practice exam you will also be able to read and learn the secret of achieving top scores on the State Exam. a. clarifier directs raw and digested sludge mixture to a heating area. If the level falls in 10.3 min. What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? If the sludge drying beds had a decaying odor, what would be the most likely solution? It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. b. primary clarification Operators should, as a rule, never change the temperature in an anaerobic digester by more than___degrees F/day. (b) What is the magnification of the image of the fish? The clarity of the effluent from an activated sludge process is considered good when the "Secchi" disk cab be read at a level of_______ft, Basic Chemistry: Each of the Practice Exams is a multiple choice test (50 questions). When the pump is not running, the water rises in 3 min. (Time of day), Waste Treatment Ponds: Rotating biological contactors have all the following advantages except: A solids treatment stabilization process method would be: c. sludge age Pass your test the first time! The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: Which one of the following types of substances can be toxic to wastewater plants using biological systems and may adversely affect potable water supplies downstream? a. gravity These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. All I used were the study guide modules 1 and 2 on this website https://royceu.com/Public/PracticeQuizes.aspx I kept doing them until I was getting scores above 90. . By measuring the pump output. Answers and references are included for questions. -pH is 7.2. b. they can handle a large range of flows What is the solids treatment method that uses a chemicals and mixes the recycled flow with the process residual flow in a reactor? b. wet air oxidation The more practice exams you do, the less stress you will feel when taking the real exam. 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. During the exam, . That may seem obvious but, too many people take the certification exam with little or no preparation. H}Wr8[$HB$"&.ZO*JJ4p8(To>|H^sGGrB*G*f%G. which type of centrifuge uses an other screw conveyor to move the solids to the discharge point? c. sulfuric acid You have already completed the quiz before. New Sacramento books tend to cover a lot of stuff that you will see on ABC course, but exams will ask you for a very specific thing that youre most likely to skip in the book heh. What would be the cause of a shorted-winding in a motor? The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. Sludge Digestion & Solids Handling: b. F/M udDNW|'Z[V2Lj$h>-}ToIYPcXpj$c[1s;Hu'wg>{h<3B~l8io\M,J1?euZ1!j@Pk*DZWGBiNw+EE'jY?Qz\Vvr}W[Z RkGnW\Vq:G\n^6qAaVWn,v 9V;-zlpEp"Kp d. incineration, Wastewater Solids Processing: they prevent foaming in the annular space. Test yourself before taking your state exam. An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: .c_dVyWK3BXRxSN3ULLJ_t{border-radius:4px 4px 0 0;height:34px;left:0;position:absolute;right:0;top:0}._1OQL3FCA9BfgI57ghHHgV3{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;-ms-flex-pack:start;justify-content:flex-start;margin-top:32px}._1OQL3FCA9BfgI57ghHHgV3 ._33jgwegeMTJ-FJaaHMeOjV{border-radius:9001px;height:32px;width:32px}._1OQL3FCA9BfgI57ghHHgV3 ._1wQQNkVR4qNpQCzA19X4B6{height:16px;margin-left:8px;width:200px}._39IvqNe6cqNVXcMFxFWFxx{display:-ms-flexbox;display:flex;margin:12px 0}._39IvqNe6cqNVXcMFxFWFxx ._29TSdL_ZMpyzfQ_bfdcBSc{-ms-flex:1;flex:1}._39IvqNe6cqNVXcMFxFWFxx .JEV9fXVlt_7DgH-zLepBH{height:18px;width:50px}._39IvqNe6cqNVXcMFxFWFxx ._3YCOmnWpGeRBW_Psd5WMPR{height:12px;margin-top:4px;width:60px}._2iO5zt81CSiYhWRF9WylyN{height:18px;margin-bottom:4px}._2iO5zt81CSiYhWRF9WylyN._2E9u5XvlGwlpnzki78vasG{width:230px}._2iO5zt81CSiYhWRF9WylyN.fDElwzn43eJToKzSCkejE{width:100%}._2iO5zt81CSiYhWRF9WylyN._2kNB7LAYYqYdyS85f8pqfi{width:250px}._2iO5zt81CSiYhWRF9WylyN._1XmngqAPKZO_1lDBwcQrR7{width:120px}._3XbVvl-zJDbcDeEdSgxV4_{border-radius:4px;height:32px;margin-top:16px;width:100%}._2hgXdc8jVQaXYAXvnqEyED{animation:_3XkHjK4wMgxtjzC1TvoXrb 1.5s ease infinite;background:linear-gradient(90deg,var(--newCommunityTheme-field),var(--newCommunityTheme-inactive),var(--newCommunityTheme-field));background-size:200%}._1KWSZXqSM_BLhBzkPyJFGR{background-color:var(--newCommunityTheme-widgetColors-sidebarWidgetBackgroundColor);border-radius:4px;padding:12px;position:relative;width:auto}
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