anatomy and physiology. 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. Basic Chemistry: b. cyanide 14/08/2014 Draft tube propeller mixers are subject to corrosion from____ 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. What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? Sludge Digestion & Solids Handling: c. temperature The responses provided up to the point of interruption will be The program suggests purchasing their books from Sacramento. 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: Mixed liquor is a combination of what 3 things? 0000001180 00000 n a. several times a day 14 sec. Mar. 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. Sludge Digestion & Solids Handling: Typically, in the flotation thickening method, how much performance improvement (%) is the amount of solids for waste activated sludge realized when a polymer is added? The wastewater operator certification program is a mandatory program. c. power requirements are low h=e.getElementsByTagName("head")[0]||e.getElementsByTagName("script")[0].parentNode; b. extended aeration activate sludge Wastewater sources & characteristics: d. have a density significantly greater than water, contain 20-25% nonvolatile inorganic matter. 2. oxidation pond also, i wouldn't be worried about retesting. 0000045118 00000 n illinois class 4 wastewater practice test. . d. 100:12:5, Trickling Filters: Secondary Treatment: The following are approved as reference sources for the 2017 ABC standardized wastewater treatment operator exams. Class 2 wastewater operator certification examination. proper operation. Activated Sludge: c. green Filter sloughings are a product of: Sedimentation and Flotation: 10 PPM. Jake a. rotameter 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. screw feeder I also recommend these practice test to my coworkers. An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: 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 _____? Another name for a waste stabilization pond is, Wastewater sources & characteristics: What is the critical factor in any method to control the aeration tank? Sludge Digestion & Solids Handling: Grease should be cleaned from walkaways with a stiff brush and What class of fire involves sodium and magnesium? 2014 Click to Rate "Hated It" Click to Rate "Didn't Like It" ._1sDtEhccxFpHDn2RUhxmSq{font-family:Noto Sans,Arial,sans-serif;font-size:14px;font-weight:400;line-height:18px;display:-ms-flexbox;display:flex;-ms-flex-flow:row nowrap;flex-flow:row nowrap}._1d4NeAxWOiy0JPz7aXRI64{color:var(--newCommunityTheme-metaText)}.icon._3tMM22A0evCEmrIk-8z4zO{margin:-2px 8px 0 0} Rotating Biological Contactors: Study materials to help you succeed. a.complete mix aeration Please select the correct language below. Activated Sludge: May 7th, 2018 - Revised March 2003 Illinois Environmental Protection Agency Wastewater Operator Certification If this is your first exam attempt . Aerobic ponds usually range in depth from ___-____ft, Wastewater Treatment Facilities: now if it's bomb after bombeh, i might make ya take a break for a bit before going again. Certification testing is offered as a computer-based test. Campus Box 1075 - Southern Illinois Univ. Which one of the following parameters can be preserved for later lab analysis? Wastewater Works Operator Class 4 Wastewater Treatment Operator Class I - 2017 Edition Wastewater Treatment Wastewater Treatment, Collection, Industrial . b. twice per day 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. True. 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. Sewer "B" has 94,875 people at Hence you can not start it again. Activated Sludge Module 1 . a. primary clarifier which one of the following wastewater solids would most likely never end up on a dedicated land disposal (DLD) site? b. F/M Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. b. phosphoric acid .s5ap8yh1b4ZfwxvHizW3f{color:var(--newCommunityTheme-metaText);padding-top:5px}.s5ap8yh1b4ZfwxvHizW3f._19JhaP1slDQqu2XgT3vVS0{color:#ea0027} The allowable frequency deviation above or below the value stamped on a motor's nameplate is_______%. 50%. Digestion is working properly if the volatile solids content of the raw sludge has been reduced by ___-___%, Sludge Digestion & Solids Handling: d. phosphorous, Activated Sludge: a. increase air in aeration system a. screenings We weren't able to detect the audio language on your flashcards. The plant engineer estimates the machine has a useful life of 5 years and no salvage value. Safety: This makes it harder to write exams. Bacteria are in the ______kingdom, Activated Sludge: (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. d. chemical oxidation. The Association Certification of Boards doesnt take all of their questions from one book, there are usually several books that they take information from and then compile an exam. An atmosphere is defined as oxygen deficient if it contains less than what % oxygen by volume? c. complex mix aeration c. tapered aeration -high surface turbulence. Which one of the following species is ozone? c. acids and alkalies Every test is created from a pool of possible water distribution questions. 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? /*# 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. d. temperature. c. about half the volume as the grit being removed Class 2 Wastewater Test Questions fullexams com. Disinfection: For an examinee or testing client unfamiliar with the Association of Boards of Certification's computerized exams, Experience ABC's Computerized Exams gives a closer look. ._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)} 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. If the gas pressure in a digester is lower than normal, what is the most probable cause? Secondary Treatment: VIII. Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. Available to Treatment and Distribution Members. 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? Activated Sludge: To see these classes - CLICK HERE. Sludge Digestion & Solids Handling: Perfect for water distribution operators taking their D-1, D-2, D3 Operator exams (DI-DIII.) What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? Reliability can only . -the tank is exhibiting high rates of foaming. There are 22 individual lesson modules included in this course. a. no organics What type of feeder would always feed a gas? All rights reserved. No stress. 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. contain 20-25% nonvolatile inorganic matter a. 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. A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: a. gray 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 How many stages are usually present in the rotating biological contactor process? Sludge Digestion & Solids Handling: 122 terms. 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\. What is the most probable cause for excessive algae in the effluent of a wastewater pond? The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: Stabilization Ponds Operations Manual USEPA 430/9-77-012 Contact Andrea Rhodes g.async=!0,g.src=t,h.appendChild(g)} Name the type of centrifuge that uses a knife or plow insertion to scrap off the "cake" from its walls? c. 6 stages The ABC formula sheet is provided, and you must bring a non-programmable calculator. ._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)} Basic Chemistry: 0000004525 00000 n Pre-Lab Unfortunately my state uses the ABC program from California to acquire licenses. a. thickening IX. 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: c. add treatment chemicals temperature favoring the growth of a particular species of algae. %PDF-1.2 c. applying chlorine These practice questions and answers are brought to you free of charge by RoyCEU.com. Wastewater Operator Certification Exam Book List. Sludge Digestion & Solids Handling: The detention time for primary clarifiers usually has a range of_____hr/s, Wastewater Treatment Facilities: Microbiology. 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______. d. flotation, Wastewater Solids Processing: support for the floating cover when it is at its lowest point. What is the optimum temperature for digester substances? Wastewater Operator Certification Exam Schedule You must have a Letter of Admission to take the wastewater operator examination. USE OF CALCULATORS ON THE EXAM 10 . DERFSTA. If a sludge cake consists of 60% solids, where did it mostly likely originate from? In a primary clarifier, the expected performance for removing settleable solids is 90-95% removal. The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: Non -sewage: This is discharged by manufacturing processes and commercial enterprises. a. high sludge production when taking a bacteria sample, the sample bottle should be filled with water. b. they can handle a large range of flows (2) reddish brown d. plunger feeder, Solids removal from secondary effluent: Smith, Michael Abbott. Monitor electrical equipment E.coli Test Operate safety equipment . .Rd5g7JmL4Fdk-aZi1-U_V{transition:all .1s linear 0s}._2TMXtA984ePtHXMkOpHNQm{font-size:16px;font-weight:500;line-height:20px;margin-bottom:4px}.CneW1mCG4WJXxJbZl5tzH{border-top:1px solid var(--newRedditTheme-line);margin-top:16px;padding-top:16px}._11ARF4IQO4h3HeKPpPg0xb{transition:all .1s linear 0s;display:none;fill:var(--newCommunityTheme-button);height:16px;width:16px;vertical-align:middle;margin-bottom:2px;margin-left:4px;cursor:pointer}._1I3N-uBrbZH-ywcmCnwv_B:hover ._11ARF4IQO4h3HeKPpPg0xb{display:inline-block}._2IvhQwkgv_7K0Q3R0695Cs{border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._2IvhQwkgv_7K0Q3R0695Cs:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B{transition:all .1s linear 0s;border-radius:4px;border:1px solid var(--newCommunityTheme-line)}._1I3N-uBrbZH-ywcmCnwv_B:focus{outline:none}._1I3N-uBrbZH-ywcmCnwv_B.IeceazVNz_gGZfKXub0ak,._1I3N-uBrbZH-ywcmCnwv_B:hover{border:1px solid var(--newCommunityTheme-button)}._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk._35hmSCjPO8OEezK36eUXpk{margin-top:25px;left:-9px}._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:focus-within,._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP._3aEIeAgUy9VfJyRPljMNJP:hover{transition:all .1s linear 0s;border:none;padding:8px 8px 0}._25yWxLGH4C6j26OKFx8kD5{display:inline}._2YsVWIEj0doZMxreeY6iDG{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-metaText);display:-ms-flexbox;display:flex;padding:4px 6px}._1hFCAcL4_gkyWN0KM96zgg{color:var(--newCommunityTheme-button);margin-right:8px;margin-left:auto;color:var(--newCommunityTheme-errorText)}._1hFCAcL4_gkyWN0KM96zgg,._1dF0IdghIrnqkJiUxfswxd{font-size:12px;font-weight:700;line-height:16px;cursor:pointer;-ms-flex-item-align:end;align-self:flex-end;-webkit-user-select:none;-ms-user-select:none;user-select:none}._1dF0IdghIrnqkJiUxfswxd{color:var(--newCommunityTheme-button)}._3VGrhUu842I3acqBMCoSAq{font-weight:700;color:#ff4500;text-transform:uppercase;margin-right:4px}._3VGrhUu842I3acqBMCoSAq,.edyFgPHILhf5OLH2vk-tk{font-size:12px;line-height:16px}.edyFgPHILhf5OLH2vk-tk{font-weight:400;-ms-flex-preferred-size:100%;flex-basis:100%;margin-bottom:4px;color:var(--newCommunityTheme-metaText)}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX{margin-top:6px}._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._19lMIGqzfTPVY3ssqTiZSX._3MAHaXXXXi9Xrmc_oMPTdP{margin-top:4px} Which of the following groups of microorganisms are found in a good settling mixed liquor? b. decrease circulation Proper flow velocity through a grit channel is indicated when the grit being removed contains Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . 0000001315 00000 n directs raw and digested sludge mixture to a heating area. Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. The most common flow-measure device for wastewater is a_____, Wastewater Treatment Facilities: 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: Humus sludge is biomass from, Trickling Filters: -high surface turbulence. The passing grade is 70%. What modified activated sludge process does not require primary treatment? Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. Safety: (a) Where does the fish appear to be? Virtual Wastewater and Math Review workshops meet from 1:00 p.m. to 3:00 p.m. b. bleach Activated Sludge: Sedimentation and Flotation: d. temperature. DO Math questions include the method to solve. Activated Sludge: c. aerobic pond .FIYolDqalszTnjjNfThfT{max-width:256px;white-space:normal;text-align:center} Wastewater Grade 2 t f Flashcards Quizlet. Wastewater Class 2 multiple choice. b. pH How much of the solids should be wasted each week in the summer form a package wastewater treatment plant for the best quality? Basic Chemistry: /Length 9 0 R What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? Post was not sent - check your email addresses! Wastewater Laboratory Analyst Certification Exam Practice. Solids removal from secondary effluent: Pool Chemistry d. belt presses, Wastewater Solids Processing: c. O3 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: 50 terms. d. preaeration. b. gravity d. pure oxygen, Activated Sludge: What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? Wastewater Solids Processing: Approx. Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? b. food entering the process (solids) Residual Solids Management: What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: a. total solids Sludge Digestion & Solids Handling: -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. What should the initial depth of sludge from a digester be when it is placed in a sludge drying bed? 10 PPM. Residual Solids Management: Rotating Biological Contactors: a. gravity b. yellow Sludge Digestion & Solids Handling: Bacteria in an anaerobic digester will effectively utilize: Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. Wastewater Solids Processing: Edwardsville, IL 62026-1075 (618) 650-2030 . Another name for slime growth is, Trickling Filters: e. black ._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} Student Resources. What is the purpose of a draft tube in an anaerobic sludge digester? Wastewater Solids Processing: View the 2020-2021 wastewater exam summary statistics of quarterly exam results HERE. d. 8 stages, Rotating Biological Contactors: Study key C amp D IN gov. Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: DO All rights reserved. c. volatile-acid-alkalinity ratio what % of the dissolved solids in wastewater are inorganics, Wastewater sources & characteristics: %PDF-1.4 % Wastewater Solids Processing: c. cyanides a. step aeration Which type of feeder would most likely feed clear solutions? 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! It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. ._3oeM4kc-2-4z-A0RTQLg0I{display:-ms-flexbox;display:flex;-ms-flex-pack:justify;justify-content:space-between} To help you study for your wastewater treatment operator certification exam, here are four practice problems. Which one of the following is not a major solids treatment method? c. hypochlorite acid Which one of the following methods would not be used to feed DRY chemicals? name the laboratory glassware that can be used to heat liquids in an open flame? The exam consists of 100 multiple choice questions. a. polishing pond 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?? By the way, please keep in mind these problems are for anyone who is pursuing the first two certification levels. Electrical units operating in areas exposed to flammable vapors should_______. excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: c. reduce the number of weeds Sludge Digestion & Solids Handling: The current imbalance between legs of polyphase motors should never exceed____%, Maintenance: The City of Prattville is offering a new wastewater certification exam preparation course. What do corbels provide in an anaerobic digester? Answer the following question to test your understanding of the . And what online studies did you use? If the primary sedimentation unit to a wastewater treatment plant has an H2S odor, what would be the most likely solution? a. sand drying beds THESE ARE NOT DUPLICATE QUESTIONS FROM ANY STATE EXAM. Rotating Biological Contactors: How often should flame arresters be service on anaerobic digesters? 4.5 in. H}Wr8[$HB$"&.ZO*JJ4p8(To>|H^sGGrB*G*f%G. d. N2O. What document provides a profile of hazardous substances and/or mixtures? Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. b. grit Please sign in to share these flashcards. WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. The industrial Class K (facility-specific) exam has a total of 15 questions, 5 multiple choice short answer/essay. STUDY STRATEGY 10-13 . This course will prepare you to pass your entry level wastewater treatment operator exam with confidence and get you started on your way to a successful and satisfying career in wastewater treatment. How do you calibrate a chemical feed pump? ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} a. pH c)Replenish chemical stock. Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: c. COD One solids treatment thickening process would be: How often should the mainshaft bearings be greased in a rotating biological contactor unit?