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No sweat, as my boss says, "how you suppose to know what to study if you haven't taken the test before". Study materials to help you succeed. An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: Sludge Digestion & Solids Handling: Waste Treatment Ponds: Calculate the BOD given the information: Initial DO: 8.3. 100:5:1 Wastewater Solids Processing: c. DO Every test is created from a pool of possible water distribution questions. The passing grade is 70%. d. brown (hint: the elements social CHAPTER THREE b. using masking agents Outline The specific gravity standard for gases is_______, Basic Chemistry: d. DO. My tests are based off of ABC and Sacramento too. /Length 9 0 R 0000000607 00000 n c. green c. F/M ration Which property uniquely identifies a chemical element? b. vacuum filters a. high sludge production c. a biological process Electrical units operating in areas exposed to flammable vapors should_______. Which one of the following methods would not be used to feed DRY chemicals? b. vibrating trough Stabilization Ponds Operations Manual USEPA 430/9-77-012 d. activated sludge, Wastewater Treatment Facilities: Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: How often should the oil be changed in the speed reducer of a rotating biological contactor? b. decanter Rotating Biological Contactors: The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. c. hypochlorite acid What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? This 5 question practice test is a demo of the full, 100 question, practice test available to members. The course is designed to prepare operators for the Grade 2, 3, and 4 Alabama Wastewater Certification Exams. How often should the oil in the chain casing be changed? If there is a leak from a valve on a sulfur dioxide tank and the lead is found using ammonia, what color will the vapor fumes be? b. complete mix aeration For more practice problems: https://www.waterandwastewatercourses.com/To enroll in an online course: https://courses.waterandwastewatercourses.com/Grade 1: . What class of fire involves sodium and magnesium? It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. support for the floating cover when it is at its lowest point. c. composting Secondary Treatment: The wastewater operator certification program is a mandatory program. b. trickling filter Reliability can only . ABC's website provides Need to Know Criteria for exams. Sludge Digestion & Solids Handling: Standards of conduct and practice were revised to exclude marijuana-related drug distribution misdemeanor convictions from convictions that a regulant must report to the Board. No worry. A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: Questions: 26 | Attempts: 3527 | Last updated: Mar 22, 2022. . a. clarifier They all produce high volumes of wastewater. STUDY STRATEGY 10-13 . You have created 2 folders. c. lime stabilization a. BOD Sludge Digestion & Solids Handling: Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: Water Distribution Certification practice tests, flashcards, study guides, and more. b. screenings V. WHAT OPERATORS NEED TO KNOW 3-9 . a. screw feeder If the level falls in 10.3 min. Wastewater Treatment Operator Certification Exam - 4 Practice Problems Water and Wastewater Courses 6.18K subscribers Subscribe 86K views 5 years ago For practice exams:. -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. ._3K2ydhts9_ES4s9UpcXqBi{display:block;padding:0 16px;width:100%} If the sludge drying beds had a decaying odor, what would be the most likely solution? The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. 10 PPM. h=e.getElementsByTagName("head")[0]||e.getElementsByTagName("script")[0].parentNode; Please sign in to share these flashcards. Safety: Add to folder Need to know criteria. .LalRrQILNjt65y-p-QlWH{fill:var(--newRedditTheme-actionIcon);height:18px;width:18px}.LalRrQILNjt65y-p-QlWH rect{stroke:var(--newRedditTheme-metaText)}._3J2-xIxxxP9ISzeLWCOUVc{height:18px}.FyLpt0kIWG1bTDWZ8HIL1{margin-top:4px}._2ntJEAiwKXBGvxrJiqxx_2,._1SqBC7PQ5dMOdF0MhPIkA8{vertical-align:middle}._1SqBC7PQ5dMOdF0MhPIkA8{-ms-flex-align:center;align-items:center;display:-ms-inline-flexbox;display:inline-flex;-ms-flex-direction:row;flex-direction:row;-ms-flex-pack:center;justify-content:center} 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 Mixed liquor is a combination of what 3 things? Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: b. they can handle a large range of flows c. BOD What is the odor detection limit of chlorine gas? 2014. a. gravity Which one of the following types of wastewater ponds listed below is not classified like the other three? 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 The allowable voltage above or below the value stamped on a motor's nameplates is_____%, Maintenance: b. contact stabilization What is the critical factor in any method to control the aeration tank? c. gasoline products Rotating Biological Contactors: 122 terms. -pH is 7.2. Edwardsville, IL 62026-1075 (618) 650-2030 7. Class 4 Study Guide Wastewater Operator Certification . Class 4 Wastewater IL 4.0 (1 review) Term 1 / 88 What do you do if a sewer line is plugged? Classes and seminars for water and Wastewater Certification. Wastewater Class 2 multiple choice. Wastewater sources & characteristics: Please select the correct language below. 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: >> Note: The Grade 7 Upgrade Application must be mailed to the Commonwealth of Mass, as shown on the form. b. WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? Please take this quiz and check how well do you know about CA water treatment plant operator! Maintenance: b. a little organic material while the pump is running, what is the pump rate in GPM? 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 When the influent load to a wastewater treatment plant changes rapidly, the best test to control purposes is Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . View the 2020-2021 wastewater exam summary statistics of quarterly exam results HERE. return sludge/raw wastewater, Activated Sludge: c. 6 stages Maintenance: These questions are similar to, but not the same as, the questions you are likely to encounter on your certification exam. r.queue=[],r.loaded=1*new Date,r.version="1.0.0", The least desirable control method for an anaerobic digester is the use of digester____ b. phosphoric acid 5,$>/SFZ=_Y;PA v UhK1.N7,#Fi__&5&h5mm>b8AE^dGP7\A6fS-/z%o%ND(uaheK^R`;tf![mIMv=X%[ej1v!OypyRO5Qje|=:"*!KUgJ}-*C_.>(P@&iGl/W"-vZe0}[T]]M AWw4q:;) x~H60qg;05?R52NQD* oqIyyydw/5[yU f[Wo3Z0/=y_avd67!@vP1[ =7$F5]X\. How far out from the water's edge should waste pond samples be collected? Which type of feeder would most likely feed clear solutions? What would be the most probable cause for gas leaking through the pressure relief valve on the digester's roof? Sludge Digestion & Solids Handling: d. flooding the filter, Trickling Filters: When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: d. hydrochloric acid. Loading Rates. Equilibrium system and stress factors Always pour the acid into the water. The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: Wastewater Tougher Questions wastewater grade 1 Wastewater Certification Grade 2 Flashcards Wastewater Grade 4 Questions Wastewater Grade 4 Questions by coe1069 , Mar. How many steps are the in coagulation? Secondary Treatment: Answers and references are included for questions. 2,323 Gal./Min. c. grit d. flotation, Wastewater Solids Processing: Disinfection: Secondary clarifiers are usually located after: c. rotating feeder Southern Illinois Univ. @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 do roller guides provide in an anaerobic digester? The RX Drug Company has just purchased a capsulating machine for $76,000. Study key C amp D IN gov. @keyframes ibDwUVR1CAykturOgqOS5{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}._3LwT7hgGcSjmJ7ng7drAuq{--sizePx:0;font-size:4px;position:relative;text-indent:-9999em;border-radius:50%;border:4px solid var(--newCommunityTheme-bodyTextAlpha20);border-left-color:var(--newCommunityTheme-body);transform:translateZ(0);animation:ibDwUVR1CAykturOgqOS5 1.1s linear infinite}._3LwT7hgGcSjmJ7ng7drAuq,._3LwT7hgGcSjmJ7ng7drAuq:after{width:var(--sizePx);height:var(--sizePx)}._3LwT7hgGcSjmJ7ng7drAuq:after{border-radius:50%}._3LwT7hgGcSjmJ7ng7drAuq._2qr28EeyPvBWAsPKl-KuWN{margin:0 auto} Which method would not be used to feed LIQUID chemicals? Which one of the following ius the least important in the successful operation of an activated sludge plant? 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: Activated Sludge: worked for me on the class IV. Wastewater Collection Practice Test #3 Page 6 of 26 9) Sewer "A" has 106,000 people at 95 GPCD. a. + I was successful writing my level III Water Distribution but it too had a lot of questions about water treatment, cross connection control, GIS systems, blueprints, dosages etc. c. improve housekeeping around drying beds The most common pathogen identified in waterborne disease outbreaks in the United States is_______, Water and Wastewater Microbiology" Hb```f``d30 P9eVcrV),VA`}. Sludge Digestion & Solids Handling: What term describes the condition that exists when the source of the water supply is below the centerline of the pump? a.complete mix aeration Hydrogen Sulfide will exist in a system depending on the presence or absence of_____. d. remove sludge digester, Odor Control: 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 Wastewater Practice exam is temporarily out of service for upgrades. .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)} All occupied trenches 4 or more feet deep must provide exits at. Microbiology. Pool Chemistry The most common flow-measure device for wastewater is a_____, Wastewater Treatment Facilities: DO d. positive displacement. Was it a 3 in collections or treatment? c. orifice Safety: that is they must test what they are supposed to test. This stage takes care of the dissolved organic matter that escapes the primary stage. Filter sloughings are a product of: Sedimentation and Flotation: The most important factor in the high-rate process of anaerobic digestion is: IEPA Frequently Asked Questions - http://www.epa.illinois.gov/topics/drinking-water/operator-certification/faq/index 2022 Water Operator Exam Schedule Still have questions not answered here?? The program suggests purchasing their books from Sacramento. By measuring the pump output. d. organisms available to treat the wastes, Activated Sludge: How often should the mainshaft bearings be greased in a rotating biological contactor unit? 98) Every day the operator of a small wastewater treatment plant should. also, i wouldn't be worried about retesting. b. toxic gases 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. b. twice per day d. preaeration. 14 sec. 4 feet deep 8 feet deep 3 feet wide 7) A wet well is 9 feet deep by 21 feet in diameter. How often should the liquid level be checked on a digester to prevent overfilling? Approved Training Provider - Indiana, Illinois, Ohio, Delaware, Alabama, Maryland, Idaho, North Carolina, South Carolina, Virginia, West Virginia, Tennessee and Kentucky. In the activated sludge system for the process control of effluent suspended solids, what is the primary controlling variable for the desired microbial population? which type of centrifuge uses an other screw conveyor to move the solids to the discharge point? At what depth should samples be collected from a waste pond? .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} These practice questions and answers are brought to you free of charge by RoyCEU.com. If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? b. BOD Activated Sludge: Basic Concepts. What can be done to the trickling filter to solve high effluent suspended solids? This makes it harder to write exams. 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