illinois class 4 wastewater practice test

We weren't able to detect the audio language on your flashcards. .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} Anaerobic ponds usually range in depth from___-___ft, Wastewater Treatment Facilities: Activated Sludge Module 4 . If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? 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. Study Guide . b. extended aeration activate sludge DO c. sludge age -high surface turbulence. c. vacuum filters d. phosphorous, Activated Sludge: return sludge/raw wastewater, Activated Sludge: 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 Disinfection: Activated Sludge: decomposition of a material caused by an outside electric current, A shock load of toxic wastes coming into a plant can be treated or controlled with, {"cdnAssetsUrl":"","site_dot_caption":"Cram.com","premium_user":false,"premium_set":false,"payreferer":"clone_set","payreferer_set_title":"Wastewater Grade 4 Questions","payreferer_url":"\/flashcards\/copy\/wastewater-grade-4-questions-4642202","isGuest":true,"ga_id":"UA-272909-1","facebook":{"clientId":"363499237066029","version":"v12.0","language":"en_US"}}. What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. Sludge Digestion & Solids Handling: c. BOD No stress. d. scum, Residual Solids Management: Pre-Lab Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: Activated Sludge Module 2 . ._9ZuQyDXhFth1qKJF4KNm8{padding:12px 12px 40px}._2iNJX36LR2tMHx_unzEkVM,._1JmnMJclrTwTPpAip5U_Hm{font-size:16px;font-weight:500;line-height:20px;color:var(--newCommunityTheme-bodyText);margin-bottom:40px;padding-top:4px;text-align:left;margin-right:28px}._2iNJX36LR2tMHx_unzEkVM{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex}._2iNJX36LR2tMHx_unzEkVM ._24r4TaTKqNLBGA3VgswFrN{margin-left:6px}._306gA2lxjCHX44ssikUp3O{margin-bottom:32px}._1Omf6afKRpv3RKNCWjIyJ4{font-size:18px;font-weight:500;line-height:22px;border-bottom:2px solid var(--newCommunityTheme-line);color:var(--newCommunityTheme-bodyText);margin-bottom:8px;padding-bottom:8px}._2Ss7VGMX-UPKt9NhFRtgTz{margin-bottom:24px}._3vWu4F9B4X4Yc-Gm86-FMP{border-bottom:1px solid var(--newCommunityTheme-line);margin-bottom:8px;padding-bottom:2px}._3vWu4F9B4X4Yc-Gm86-FMP:last-of-type{border-bottom-width:0}._2qAEe8HGjtHsuKsHqNCa9u{font-size:14px;font-weight:500;line-height:18px;color:var(--newCommunityTheme-bodyText);padding-bottom:8px;padding-top:8px}.c5RWd-O3CYE-XSLdTyjtI{padding:8px 0}._3whORKuQps-WQpSceAyHuF{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-actionIcon);margin-bottom:8px}._1Qk-ka6_CJz1fU3OUfeznu{margin-bottom:8px}._3ds8Wk2l32hr3hLddQshhG{font-weight:500}._1h0r6vtgOzgWtu-GNBO6Yb,._3ds8Wk2l32hr3hLddQshhG{font-size:12px;line-height:16px;color:var(--newCommunityTheme-actionIcon)}._1h0r6vtgOzgWtu-GNBO6Yb{font-weight:400}.horIoLCod23xkzt7MmTpC{font-size:12px;font-weight:400;line-height:16px;color:#ea0027}._33Iw1wpNZ-uhC05tWsB9xi{margin-top:24px}._2M7LQbQxH40ingJ9h9RslL{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-actionIcon);margin-bottom:8px} a. incineration %PDF-1.4 % The City of Prattville is offering a new wastewater certification exam preparation course. d. incineration, Wastewater Solids Processing: The best operation performance for an anaerobic digester is when it is feed Enhanced Biological (Nutrient) Control: d. activated sludge. What do corbels provide in an anaerobic digester? What is the ultimate measure of effective chlorination? The responses provided up to the point of interruption will be Rotating Biological Contactors: Which one of the following types of wastewater ponds listed below is not classified like the other three? TABLE OF CONTENTS . Was it a 3 in collections or treatment? _____? ABC Certification - Testing Services - Membership - Conference/Calendar - Certification Contacts - Continuing Education Review - About Us - Contact Us. . What is the critical factor in any method to control the aeration tank? ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. Im trying to pass n-2 failed twice by two points . (3) reddish brown, Activated Sludge: Wastewater Solids Processing: d. pure oxygen, Activated Sludge: 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. b. they can handle a large range of flows Study key C amp D IN gov. 14 sec. Another name for a waste stabilization pond is, Wastewater sources & characteristics: 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: Outline d. temperature. Introducing Cram Folders! Secondary clarifiers are usually located after: 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. Another solids treatment thickening process would be: a. If the sewer rate is $25 for the first 500ft and all wastewater generated over that amount is billed at the rate of $2.50 per 100ft3, how much would a customer generating 1200ft2 of wastewater be billed? Wastewater Solids Processing: Pool Chemistry What is "the" major factor in predicting the performance of wastewater clarifiers? excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: that is they must test what they are supposed to test. Sludge Digestion & Solids Handling: What is the odor detection limit of chlorine gas? Filter sloughings are a product of: Sedimentation and Flotation: 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. feathr("sprinkle", "page_view"); Sludge Digestion & Solids Handling: b. decanter This solids treatment method maximizes the reduction of moisture and solids is called_______, Wastewater Solids Processing: b. 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 a. BOD Disinfection: 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. What term describes the condition that exists when the source of the water supply is below the centerline of the pump? A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: Wide, and 14 ft. Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. a.secondary clarification I also recommend these practice test to my coworkers. VII. d. brown (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 . Influent BOD testing will allow monitoring of F/M ratio and plant organic loading. Sedimentation and Flotation: b. twice per day c. tapered aeration b. primary clarification 2,380 Gal./Min. . .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)} Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. c. 100:10:3 This stage takes care of the dissolved organic matter that escapes the primary stage. Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? What is the optimum temperature for digester substances? Effluent Disposal: ._3K2ydhts9_ES4s9UpcXqBi{display:block;padding:0 16px;width:100%} 360mg/l. Wastewater sources & characteristics: b. toxic gases a. chlorine (2) reddish brown b. hypochlorous acid The water quality parameters of pH and alkalinity and the presence of toxic substances can impact plant operation, because of their What solid treatment method first uses chemicals as it conditions the solids and then later in the process, "throws" the solids out of the way is called_______, Wastewater Solids Processing: Just wanted to make sure Im looking at the right tests/guides. Questions: 26 | Attempts: 3527 | Last updated: Mar 22, 2022. What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? What is the most probable cause for excessive algae in the effluent of a wastewater pond? Odor Control: b)Determine that all the plant equipment is operational. 3 stages b. nitrogen d. chemical oxidation, Wastewater Solids Processing: Stabilization Ponds Operations Manual USEPA 430/9-77-012 Always pour the acid into the water. The Examination Request for Wastewater Operator Certification must be submitted for a Letter of Admission to be issued. Math questions include the method to solve. Of the following, which is the least important nutrient in wastewater treatment for microorganisms to reproduce? !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? a. increase air in aeration system Demo: Experience ABC's Computerized Exams. Discussion of water and wastewater treatment processes and technology. Secondary Treatment: Which one of the following species is ozone? I included the answers at the bottom of this page. b. food entering the process (solids) These questions are similar to, but not the same as, the questions you are likely to encounter on your certification exam. The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. c. improve housekeeping around drying beds c. rotating feeder The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. For more practice problems: https://www.waterandwastewatercourses.com/To enroll in an online course: https://courses.waterandwastewatercourses.com/Grade 1: . 2019 Association of Boards of Certification. Following the activated sludge what process modification is very sensitive to bulking? Note: The Grade 7 Upgrade Application must be mailed to the Commonwealth of Mass, as shown on the form. ._12xlue8dQ1odPw1J81FIGQ{display:inline-block;vertical-align:middle} (hint: the elements social CHAPTER THREE This course compiles 14 individual lessons into one course to make 16 hours. The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: The Wastewater Practice exam is temporarily out of service for upgrades. f.FeathrBoomerang=r;var g=e.createElement(a), When the influent load to a wastewater treatment plant changes rapidly, the best test to control purposes is At what depth should samples be collected from a waste pond? Aerobic ponds usually range in depth from ___-____ft, Wastewater Treatment Facilities: The solids treatment method that usually dewaters solids by mixing them with a bulking agent, and then waiting for biological stabilization to occur is called________, Wastewater Solids Processing: Upgrade to Combined Grade 7 - Massachusetts Wastewater Treatment Plant Operator. . Motor insulation material comes in four classes and the are based on_______, Maintenance: If the manometer indicates the gas pressure in a digester is below normal, what would be the most probable cause? Stabilization Ponds Operations Manual USEPA 430/9-77-012 Available through: d. flooding the filter, Trickling Filters: Effluent Disposal: Solids removal from secondary effluent: b. pH What organism would most likely enhance the penetration of oxygen into the activated sludge, Rocks/Screens/Comminutors & Grit Removal: d. remove sludge from grit channel, Odor Control: Residual Solids Management: Which of the following groups of microorganisms are found in a good settling mixed liquor? . One solids treatment thickening process would be: The effluent from which process is called mixed liquor Basic Chemistry: d. step aeration, Activated Sludge: a. clarifier Ponds used in series after a trickling filter are sometimes called? Deep. (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. What is the solids treatment method that aerated the recycles water from the unit under pressure? b. an anaerobic digester negative pole of an electrolytic cell or system, Unless water cooled, the operating temperature of a mechanical seal in a pump should never exceed. a. heavy metals b. contact stabilization You have to finish following quiz, to start this quiz: When organic wastes are discharged to receiving water, oxygen is depleted by. PRACTICE EXAM 13-20 . c. acids and alkalies d. plunger feeder, Solids removal from secondary effluent: Pool Chemistry ISAWWA offers a full range of online classes, all approved by the IEPA with RTC hours. Post was not sent - check your email addresses! Odor Control: When is the dissolved oxygen in a waste pond the highest? Sludge Digestion & Solids Handling: Sedimentation and Flotation: 4 Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. This class addresses all the test topics and provides the operators with all the study material necessary to prepare for the exam. Edwardsville, IL 62026-1075 (618) 650-2030 . A solids treatment stabilization process method would be: Rotating Biological Contactors: Relatively simple wastewater technologies can be designed to provide low cost sanitation and environmental protection while providing additional benefits fro A determination of waste as hazardous requires possible prohibition or limitations relating to the management of that particular waste. 50 terms. When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: Activated Sludge: Verified questions. Grease should be cleaned from walkaways with a stiff brush and Hb```f``d30 P9eVcrV),VA`}. a. b. trickling filter If a sludge cake consists of 60% solids, where did it mostly likely originate from? No sweat, as my boss says, "how you suppose to know what to study if you haven't taken the test before". Disinfection: . feathr("fly", "5e558ae66f594e4be753166e"); Approx. ._2cHgYGbfV9EZMSThqLt2tx{margin-bottom:16px;border-radius:4px}._3Q7WCNdCi77r0_CKPoDSFY{width:75%;height:24px}._2wgLWvNKnhoJX3DUVT_3F-,._3Q7WCNdCi77r0_CKPoDSFY{background:var(--newCommunityTheme-field);background-size:200%;margin-bottom:16px;border-radius:4px}._2wgLWvNKnhoJX3DUVT_3F-{width:100%;height:46px} Where would toxicants least likely cause a problem for a wastewater treatment plant? 1. How often should the mainshaft bearings be greased in a rotating biological contactor unit? If this is your first exam attempt, a short history of the current exam development should be of interest. a. oils and greases ._38lwnrIpIyqxDfAF1iwhcV{background-color:var(--newCommunityTheme-widgetColors-lineColor);border:none;height:1px;margin:16px 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Draft tube propeller mixers are subject to corrosion from____ 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. What modified activated sludge process does not require primary treatment? 0000002075 00000 n Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? anatomy and physiology. a. hair Math guides, tutorials, tips, and practice quizzes. Why do the strings used for the lowest-frequency notes on a piano normally have wire wrapped around them? A pond that contains algae and requires the use of compressor is classified as, Waste Treatment Ponds: Sludge Digestion & Solids Handling: Wastewater Operator Certification Exam Schedule You must have a Letter of Admission to take the wastewater operator examination. Activated Sludge Module 1 . ._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)} Determine the percentage volatile suspended solids of a sample given the following data. Activated Sludge: Complete the test and know your score instantly. True. H2SO4. Adequate ___BOD, ____nitrogen, ____Phosphorous ratio for microorganisms to grow is usually Certification testing is offered as a computer-based test. My tests are based off of ABC and Sacramento too. 0000045118 00000 n Math There are 22 individual lesson modules included in this course. What document provides a profile of hazardous substances and/or mixtures? b. COD So every time you practice you will take a unique test. Sludge Digestion & Solids Handling: Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. c. trisodium phosphate Campus Box 1075 - Southern Illinois Univ. Maintenance: Find out how you can intelligently organize your Flashcards. In general, secondary sludges: The color of the first RBC is___; the color of the second RBC is_____; and the color of the third RBS C is____, (1) gray ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} name the laboratory glassware that can be used to heat liquids in an open flame? b. bleach c. carbon in organic matter -pH is 7.2. When is the pH in a waste pond the highest? c. grit I just challenged the Water Treatment level 1 exam this Monday and noticed there were questions regarding distribution on it as well. d. about the same volume as the grit being removed. Maintenance: 10 PPM. me personally the Sacramento is way outdated, But I used the wastewater treatment fundamentals I&II textbook and passed my Class IV in Virginia on the first try. Wastewater Treatment Operator Certification Exam - 4 Practice Problems Water and Wastewater Courses 6.18K subscribers Subscribe 86K views 5 years ago For practice exams:. a. nitric acid Wastewater Collections Grade 2 Practice Test California Wastewater Collections Grade 2 Practice Test California Water and Wastewater Courses For Operator Certification. I got a book from WEF and studied a few online resources recommended on here. d. N2O. American Water College. when taking a bacteria sample, the sample bottle should be filled with water. Safety: d. activated sludge, Wastewater Treatment Facilities: That may seem obvious but, too many people take the certification exam with little or no preparation. What should be the color of an oxidation ditch that is working properly? Class 4 Study Guide Wastewater Operator Certification . 8 0 obj DO The recommended minimum depth for a waste pond is". The clarity of a chlorine contact basin's effluent is considered good when the "Secchi" disk can be read at a level of___ft, Ca Grade 2 Wastewater Treatment Operator Prac, Wastewater Treatment Operator Certification T, 3 , , WasteWater Operator Certification Study Guide, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. Need to know criteria. Sedimentation and Flotation: Practice Tests. Name the type of centrifuge that uses a knife or plow insertion to scrap off the "cake" from its walls?

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