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Secondary Treatment: 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"}}. All occupied trenches 4 or more feet deep must provide exits at. ISAWWA offers a full range of online classes, all approved by the IEPA with RTC hours. These questions are similar to, but not the same as, the questions you are likely to encounter on your certification 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. A pond that contains algae and requires the use of compressor is classified as, Waste Treatment Ponds: Basic Chemistry: Basic Concepts. d. mixing, Sludge Digestion & Solids Handling: r.queue=[],r.loaded=1*new Date,r.version="1.0.0", If a wastewater treatment plant has four aerobic digesters operated in series, which tank will exert the highest oxygen demand? If you want more practice problems, click here . Wastewater Grade 2 t/f. Sludge Digestion & Solids Handling: Sludge Digestion & Solids Handling: (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. Which one of the following is not a major solids treatment method? Following the activated sludge what process modification is very sensitive to bulking? b. are more fibrous ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} d. temperature. I included the answers at the bottom of this page. Waste Treatment Ponds: primary effluent May 7th, 2018 - Revised March 2003 Illinois Environmental Protection Agency Wastewater Operator Certification If this is your first exam attempt . To go to the Class 2 & 3 Study Guide Click on above tab. Sludge Digestion & Solids Handling: a. flush out distributor arms This makes it harder to write exams. 1. The water quality parameters of pH and alkalinity and the presence of toxic substances can impact plant operation, because of their what type of waste solids would most likely be sent to a rendering reclamation? Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? .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)} In general, secondary sludges: If this is your first exam attempt, a short history of the current exam development should be of interest. Which one of the following species is ozone? When the pump is not running, the water rises in 3 min. Another guy told me thats what he uses instead of the sacramento. DERFSTA. a.secondary clarification a. heavy metals Hence you can not start it again. The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. the books are a tad overkill for the ABC tests. Which one of the following parameters can be preserved for later lab analysis? The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? Collection Class 3; Collection Class 4 - most advanced level Small wastewater system operators oversee wastewater systems serving fewer than 3,300 persons. b. cyanide ._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)} To see these classes - CLICK HERE. You have created 2 folders. . Sludge Digestion & Solids Handling: (2) reddish brown a. rotameter Each question has been validated through a process of panel review. ABC Certification - Testing Services - Membership - Conference/Calendar - Certification Contacts - Continuing Education Review - About Us - Contact Us. If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? b. food entering the process (solids) STUDY STRATEGY 10-13 . This 5 question practice test is a demo of the full, 100 question, practice test available to members. /*# 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. Class 2 Wastewater Test Questions fullexams com. How do you calibrate a chemical feed pump? 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! The least desirable control method for an anaerobic digester is the use of digester____ a. O2 (+3) An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: .FIYolDqalszTnjjNfThfT{max-width:256px;white-space:normal;text-align:center} c. DO d. once every other day, Sludge Digestion & Solids Handling: Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. Sludge Digestion & Solids Handling: At what concentration level should dissolved oxygen be maintained during the initial start up of a oxidation ditch? 2014. When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: Perfect for water distribution operators taking their D-1, D-2, D3 Operator exams (DI-DIII.) This test is designed to simulate the actual Wastewater exam as closely as possible. Create an account to follow your favorite communities and start taking part in conversations. Sludge Digestion & Solids Handling: What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: a. nitrate A pond that contains oxygen in its upper layers and lacks oxygen in the bottom layer is classified as, Waste Treatment Ponds: (3) reddish brown, Activated Sludge: Another name for a waste stabilization pond is, Wastewater sources & characteristics: Outline If the manometer indicates the gas pressure in a digester is below normal, what would be the most probable cause? 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. a. improve housekeeping 122 terms. If power to a Test Center is temporarily interrupted during an administration, your examination will be restarted. b. F/M When I sat for the tests it had a completely different "feel" and higher level of complexity than what I studied for in the ABC. If the primary sedimentation unit to a wastewater treatment plant has an H2S odor, what would be the most likely solution? Aerobic ponds usually range in depth from ___-____ft, Wastewater Treatment Facilities: 0000045196 00000 n a. total solids 2017 Wastewater Treatment Operator Class IV Wastewater Treatment Operator Formula/Conversion Table ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. d. preaeration. d. organisms available to treat the wastes, Activated Sludge: what would happen if too much sludge was added to an anaerobic digester? Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). Every test is created from a pool of possible water distribution questions. By the way, please keep in mind these problems are for anyone who is pursuing the first two certification levels. a. several times a day c. O3 Water and Wastewater Microbiology" Math a. screw feeder Approved Environment, Inc. offers 50 online continuing education (CE) courses for water and wastewater. Illinois EPA certifies the technical competency of . b. an anaerobic digester b. twice per day 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. Wastewater Solids Processing: Wastewater sources & characteristics: c. vacuum filters 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. DO Need to know criteria. b. Disinfection: Was it a 3 in collections or treatment? Wastewater Class 2 multiple choice. ._2Gt13AX94UlLxkluAMsZqP{background-position:50%;background-repeat:no-repeat;background-size:contain;position:relative;display:inline-block} a. organic toxicants ._1QwShihKKlyRXyQSlqYaWW{height:16px;width:16px;vertical-align:bottom}._2X6EB3ZhEeXCh1eIVA64XM{margin-left:3px}._1jNPl3YUk6zbpLWdjaJT1r{font-size:12px;font-weight:500;line-height:16px;border-radius:2px;display:inline-block;margin-right:5px;overflow:hidden;text-overflow:ellipsis;vertical-align:text-bottom;white-space:pre;word-break:normal;padding:0 4px}._1jNPl3YUk6zbpLWdjaJT1r._39BEcWjOlYi1QGcJil6-yl{padding:0}._2hSecp_zkPm_s5ddV2htoj{font-size:12px;font-weight:500;line-height:16px;border-radius:2px;display:inline-block;margin-right:5px;overflow:hidden;text-overflow:ellipsis;vertical-align:text-bottom;white-space:pre;word-break:normal;margin-left:0;padding:0 4px}._2hSecp_zkPm_s5ddV2htoj._39BEcWjOlYi1QGcJil6-yl{padding:0}._1wzhGvvafQFOWAyA157okr{font-size:12px;font-weight:500;line-height:16px;border-radius:2px;margin-right:5px;overflow:hidden;text-overflow:ellipsis;vertical-align:text-bottom;white-space:pre;word-break:normal;box-sizing:border-box;line-height:14px;padding:0 4px}._3BPVpMSn5b1vb1yTQuqCRH,._1wzhGvvafQFOWAyA157okr{display:inline-block;height:16px}._3BPVpMSn5b1vb1yTQuqCRH{background-color:var(--newRedditTheme-body);border-radius:50%;margin-left:5px;text-align:center;width:16px}._2cvySYWkqJfynvXFOpNc5L{height:10px;width:10px}.aJrgrewN9C8x1Fusdx4hh{padding:2px 8px}._1wj6zoMi6hRP5YhJ8nXWXE{font-size:14px;padding:7px 12px}._2VqfzH0dZ9dIl3XWNxs42y{border-radius:20px}._2VqfzH0dZ9dIl3XWNxs42y:hover{opacity:.85}._2VqfzH0dZ9dIl3XWNxs42y:active{transform:scale(.95)} Please take this quiz and check how well do you know about CA water treatment plant operator! 10 PPM. Along with the practice exam you will also be able to read and learn the secret of achieving top scores on the State Exam. acid fermentaters would predominate and pH would decrease, Sludge Digestion & Solids Handling: Wastewater Solids Processing: Bacteria are in the ______kingdom, Activated Sludge: Residual Solids Management: Wastewater Solids Processing: c. add treatment chemicals 50 terms. ._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} d. fats. d. remove sludge from grit channel, Odor Control: 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. d. pure oxygen, Activated Sludge: Secondary Treatment: d. activated sludge. Basic Chemistry: Past Exam Results. c. increase mixing Best of luck you! What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? c. reduce the number of weeds Rotating Biological Contactors: I also recommend these practice test to my coworkers. Draft tube propeller mixers are subject to corrosion from____ b. filter presses Sedimentation and Flotation: A wastewater [plant has a train of three rotating biological contactor (RBC) units. Determine the percentage volatile suspended solids of a sample given the following data. Practice Tests. a. heavy metals Water and Wastewater Microbiology" every month. c. hypochlorite acid Wastewater Tougher Questions wastewater grade 1 Wastewater Certification Grade 2 Flashcards Wastewater Grade 4 Questions Wastewater Grade 4 Questions by coe1069 , Mar. c. lime stabilization 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?? Introduction What should the initial depth of sludge from a digester be when it is placed in a sludge drying bed? Water Treatment Certification practice tests, flashcards, study guides, and more. What is the optimum temperature range of mesophile bacteria in anaerobic digestion? MATERIAL AND METHODS No worry. The wastewater operator certification program is a mandatory program. d. heavy metals, Activated Sludge: 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: b. flotation b. they can handle a large range of flows a. oils and greases Effluent Disposal: Class K Study Guide Industrial Wastewater Operator Certification . We'll bring you back here when you are done. The plant engineer estimates the machine has a useful life of 5 years and no salvage value. 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 @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} Test takers are allowed three hours to complete the exam. a. incineration Wastewater Grade 2 t f Flashcards Quizlet. True. b. toxic gases When is the pH in a waste pond the highest? Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: << b. decanter f.FeathrBoomerang=r;var g=e.createElement(a), Please sign in to share these flashcards. 23BIbVc^(2el!jO1gXFi!20IIew"-bRZ\Z 1mnH35_l^tE+SedZIinbz0FQ&|Y1la@YuGfrg|I-'6s @LYiFag6Td[l\* d. scum, Residual Solids Management: -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. -high surface turbulence. b. hypochlorous acid c. volatile-acid-alkalinity ratio Edwardsville, IL 62026-1075 (618) 650-2030 7. The most common imbalance in the operation of an anaerobic sludge digester is, Sludge Digestion & Solids Handling: Flow Patterns. What is the most accurate measure of the organisms present in an aerator for treating incoming wastes? Low-temperature water can be compensated for when using alum by______, Basic Chemistry: The Wastewater Practice exam is temporarily out of service for upgrades. What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. feathr("sprinkle", "page_view"); Royceu.com is where you wanna go. Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. b. vacuum filters Sludge Digestion & Solids Handling: + Wastewater Solids Processing: What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? You have to finish following quiz, to start this quiz: When organic wastes are discharged to receiving water, oxygen is depleted by. $25 b. Residual Solids Management: at least two pipe diameters above the rim. Sludge Digestion & Solids Handling: the floating cover on an anaerobic should be inspected how often? What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? Basic Chemistry: /Length 9 0 R d. phosphorous, Activated Sludge: Odor Control: c. rotating feeder In a small package, wastewater treatment plant, the operator should try to keep the dissolved oxygen in the aeration tank at approximately:____mg/L. 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 4 stages 98) Every day the operator of a small wastewater treatment plant should. How often should the oil be changed in the speed reducer of a rotating biological contactor? ._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} Safety: The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: Adequate ___BOD, ____nitrogen, ____Phosphorous ratio for microorganisms to grow is usually Sludge Digestion & Solids Handling: All rights reserved. a. reducing the number if weeds One solids treatment thickening process would be: Wastewater Operator Certification Exam Schedule You must have a Letter of Admission to take the wastewater operator examination. c. improve housekeeping around drying beds Disinfection: What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? 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. How many steps are the in coagulation? Ponds used in series after a trickling filter are sometimes called? American Water College. Hb```f``d30 P9eVcrV),VA`}. Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. Math guides, tutorials, tips, and practice quizzes. The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. Activated Sludge Module 1 . Basic Chemistry: %PDF-1.2 The more practice exams you do, the less stress you will feel when taking the real exam. d. DO. d. plunger feeder, Solids removal from secondary effluent: (Time of day), Waste Treatment Ponds: c. power requirements are low Statistics from 2019 HERE. 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? . !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke?