c. sludge digester Approx. ._1x9diBHPBP-hL1JiwUwJ5J{font-size:14px;font-weight:500;line-height:18px;color:#ff585b;padding-left:3px;padding-right:24px}._2B0OHMLKb9TXNdd9g5Ere-,._1xKxnscCn2PjBiXhorZef4{height:16px;padding-right:4px;vertical-align:top}.icon._1LLqoNXrOsaIkMtOuTBmO5{height:20px;vertical-align:middle;padding-right:8px}.QB2Yrr8uihZVRhvwrKuMS{height:18px;padding-right:8px;vertical-align:top}._3w_KK8BUvCMkCPWZVsZQn0{font-size:14px;font-weight:500;line-height:18px;color:var(--newCommunityTheme-actionIcon)}._3w_KK8BUvCMkCPWZVsZQn0 ._1LLqoNXrOsaIkMtOuTBmO5,._3w_KK8BUvCMkCPWZVsZQn0 ._2B0OHMLKb9TXNdd9g5Ere-,._3w_KK8BUvCMkCPWZVsZQn0 ._1xKxnscCn2PjBiXhorZef4,._3w_KK8BUvCMkCPWZVsZQn0 .QB2Yrr8uihZVRhvwrKuMS{fill:var(--newCommunityTheme-actionIcon)} Click the card to flip Definition 1 / 88 Look for a manhole with reduced or no flow when the manhole upstream is flowing full Click the card to flip Flashcards Learn Match Created by cshe1736 Terms in this set (88) Influent BOD testing will allow monitoring of F/M ratio and plant organic loading. Wastewater sources & characteristics: What term describes the condition that exists when the source of the water supply is below the centerline of the pump? also, i wouldn't be worried about retesting. 0000002075 00000 n We weren't able to detect the audio language on your flashcards. An anaerobic sludge digester should be operated such that________________, acid formation is equal to methane formation, Sludge Digestion & Solids Handling: Sorry, this post was deleted by the person who originally posted it. e. black d. have a density significantly greater than water, contain 20-25% nonvolatile inorganic matter. Sludge Digestion & Solids Handling: d. acids and alkalies, Activated Sludge: Rotating Biological Contactors: Operators should, as a rule, never change the temperature in an anaerobic digester by more than___degrees F/day. Contact Andrea Rhodes The most important factor in the high-rate process of anaerobic digestion is: Bacteria are in the ______kingdom, Activated Sludge: b. food entering the process (solids) me personally the Sacramento is way outdated, But I used the wastewater treatment fundamentals I&II textbook and passed my Class IV in Virginia on the first try. The panel is comprised of 8 experts who 0000001543 00000 n d. hydrogen sulfide. c. 6 stages 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. If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? 1. a. reducing the number if weeds b. screenings How ofter should the drive bearings be greased in a rotating biological contactor unit? The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. a. BOD Find out how you can intelligently organize your Flashcards. Introduction c. BOD Test takers are allowed three hours to complete the exam. What is the optimum temperature for digester substances? Three Aeration Tanks, Each @ 100 ft. Long, 25 ft. a. polishing pond Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. Water Environment Federation Bookstore. Wastewater Works Operator Class 4 Wastewater Treatment Operator Class I - 2017 Edition Wastewater Treatment Wastewater Treatment, Collection, Industrial . Which type of feeder would most likely feed clear solutions? d. raw sewage. When is the pH in a waste pond the highest? Solids removal from secondary effluent: Discussion of water and wastewater treatment processes and technology. Each of the Practice Exams is a multiple choice test (50 questions). The specific gravity standard for gases is_______, Basic Chemistry: If a wastewater treatment plant has four aerobic digesters operated in series, which tank will exert the highest oxygen demand? What is the expected range for the removal of settleable solids from a primary clarifier? Illinois Rural Water Association 3305 Kennedy Road; PO Box 49 Taylorville, IL 62568 Phone: 217-287-2115 Fax: 217-824-8638 Email: [email protected] The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? DO c. tapered aeration Motor insulation material comes in four classes and the are based on_______, Maintenance: Verified questions. One solids treatment thickening process would be: a bacteria sample must be mailed so that the lab analysis can begin no later than. Equilibrium system and stress factors Which one of the following ius the least important in the successful operation of an activated sludge plant? the floating cover on an anaerobic should be inspected how often? How often should the oil in the chain casing be changed? Sludge Digestion & Solids Handling: ._2ik4YxCeEmPotQkDrf9tT5{width:100%}._1DR1r7cWVoK2RVj_pKKyPF,._2ik4YxCeEmPotQkDrf9tT5{display:-ms-flexbox;display:flex;-ms-flex-align:center;align-items:center}._1DR1r7cWVoK2RVj_pKKyPF{-ms-flex-pack:center;justify-content:center;max-width:100%}._1CVe5UNoFFPNZQdcj1E7qb{-ms-flex-negative:0;flex-shrink:0;margin-right:4px}._2UOVKq8AASb4UjcU1wrCil{height:28px;width:28px;margin-top:6px}.FB0XngPKpgt3Ui354TbYQ{display:-ms-flexbox;display:flex;-ms-flex-align:start;align-items:flex-start;-ms-flex-direction:column;flex-direction:column;margin-left:8px;min-width:0}._3tIyrJzJQoNhuwDSYG5PGy{display:-ms-flexbox;display:flex;-ms-flex-align:center;align-items:center;width:100%}.TIveY2GD5UQpMI7hBO69I{font-size:12px;font-weight:500;line-height:16px;color:var(--newRedditTheme-titleText);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.e9ybGKB-qvCqbOOAHfFpF{display:-ms-flexbox;display:flex;-ms-flex-align:center;align-items:center;width:100%;max-width:100%;margin-top:2px}.y3jF8D--GYQUXbjpSOL5.y3jF8D--GYQUXbjpSOL5{font-weight:400;box-sizing:border-box}._28u73JpPTG4y_Vu5Qute7n{margin-left:4px} Residual Solids Management: 14 sec. Basic Chemistry: CA Grade 4 amp 5 Wastewater Math Part 2 of 3 YouTube. H2SO4. Wastewater Certification practice tests, flashcards, study guides, and more. Basic Chemistry: d. compost. All rights reserved. . Proper flow velocity through a grit channel is indicated when the grit being removed contains . c. add treatment chemicals acid fermentaters would predominate and pH would decrease, Sludge Digestion & Solids Handling: 4 stages ABC Certification - Testing Services - Membership - Conference/Calendar - Certification Contacts - Continuing Education Review - About Us - Contact Us. Activated Sludge Module 3 . a. pH Class K Study Guide Industrial Wastewater Operator Certification . a. screw feeder The ABC formula sheet is provided, and you must bring a non-programmable calculator. Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - (hint: the elements social CHAPTER THREE b. a little organic material b. Rotating Biological Contactors: Calculate the BOD given the information: Initial DO: 8.3. a. O2 (+3) ._3oeM4kc-2-4z-A0RTQLg0I{display:-ms-flexbox;display:flex;-ms-flex-pack:justify;justify-content:space-between} 0000000700 00000 n The most common pathogen identified in waterborne disease outbreaks in the United States is_______, Water and Wastewater Microbiology" Non -sewage: This is discharged by manufacturing processes and commercial enterprises. Rotating Biological Contactors: Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. d. activated sludge, Wastewater Treatment Facilities: a. screw feeder c. volatile-acid-alkalinity ratio Making water clean. Of the following, which is the least important nutrient in wastewater treatment for microorganisms to reproduce? TABLE OF CONTENTS . Sludge Digestion & Solids Handling: 50%. Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. Basic Chemistry: What is the acceptable sulfur dioxide level in mg/L in wastewater plant effluent? b. phosphoric acid Safety: illinois class 4 wastewater practice test. Best of luck you! Rotating Biological Contactors: 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______. b. flotation What do ballast blocks provide in anaerobic digesters? What is the odor detection limit of chlorine gas? b. BOD What is the optimum temperature range of mesophile bacteria in anaerobic digestion? What is the solids treatment method that aerated the recycles water from the unit under pressure? THESE ARE NOT DUPLICATE QUESTIONS FROM ANY STATE EXAM. (Time of day), Waste Treatment Ponds: DO In addition, the class covers most of the study guide questions and provides the operators with the best answers.The cost for the class is $199.00. It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. >> 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: Wastewater Solids Processing: Disinfection: Activated Sludge: d. pure oxygen, Activated Sludge: V. WHAT OPERATORS NEED TO KNOW 3-9 . The course is designed to prepare operators for the Grade 2, 3, and 4 Alabama Wastewater Certification Exams. Tightened down to a drip. Add to folder c. flammable oils .FIYolDqalszTnjjNfThfT{max-width:256px;white-space:normal;text-align:center} c. composting c. grit The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: 100:2:1 (Time of day), Waste Treatment Ponds: a. incineration This solids treatment method maximizes the reduction of moisture and solids is called_______, Wastewater Solids Processing: 78 terms. Only advice I can give is to expand your knowledge base by learning as much as you can about your field, either through University of Sacramento OWP or other correspondence courses. Which one of the following species is ozone? c. aerobic pond I found a lot of the 3 questions were around anaerobic digestion so I focused a lot on that and it helped me pass. MATERIAL AND METHODS The following are approved as reference sources for the 2017 ABC standardized wastewater treatment operator exams. Create an account to follow your favorite communities and start taking part in conversations. d. preaeration. What is the most accurate measure of the organisms present in an aerator for treating incoming wastes? The last stage is the treatment of RMW. Approved Training Provider - Indiana, Illinois, Ohio, Delaware, Alabama, Maryland, Idaho, North Carolina, South Carolina, Virginia, West Virginia, Tennessee and Kentucky. A problem with odors from trickling filters may be solved by: @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} The demo is available to both certification programs and trainers to help prepare individuals for taking a computerized exam. ._12xlue8dQ1odPw1J81FIGQ{display:inline-block;vertical-align:middle} Process wastewater can Mr Jose a. heat treatment . Sedimentation and Flotation: + Effluent Disposal: Water and Wastewater Microbiology" What type of pond would receive wastewater form a secondary treatment system? Odor Control: Edwardsville, Illinois 62026-1075 (618) 650-2030 . If a single stage or primary tank has foam in the supernatant due to an "organic overload" in the digester, what is the best solution? I passed the next time. The major gas produced by aerobic decomposition is:_______. Sludge Digestion & Solids Handling: Under which of the following conditions should sludge wasting normally be increased? 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. c. sludge drying bed or pond 4 Approved Environment, Inc. offers 50 online continuing education (CE) courses for water and wastewater. Past Exam Results. ._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} b. vibrating trough For more practice problems: https://www.waterandwastewatercourses.com/To enroll in an online course: https://courses.waterandwastewatercourses.com/Grade 1: . a. airstream treatment when taking a bacteria sample, the sample bottle should be filled with water. 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? Basic Chemistry: b. vacuum filters This course compiles 14 individual lessons into one course to make 16 hours. d. once every other day, Sludge Digestion & Solids Handling: Determine the percentage volatile suspended solids of a sample given the following data. You have already completed the quiz before. Secondary Treatment: c. 100:10:3 Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. WasteWater Operator Certification, Grade 2, Wastewater Treatment Facilities: 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 Sewer "B" has 94,875 people at The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. when one liquid is dissolved in another liquid it is called. %PDF-1.2 _____? by coe1069, Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. /Filter /FlateDecode 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. Sedimentation and Flotation: At what concentration level should dissolved oxygen be maintained during the initial start up of a oxidation ditch? a. pH b. gravity . Collection Class 3; Collection Class 4 - most advanced level Small wastewater system operators oversee wastewater systems serving fewer than 3,300 persons. -pH is 7.2. d)Test start standby pimps, motors and generators. Introduction to Water & Wastewater Treatment Technology - This course from Mountain Empire Community College includes 19 lessons tracing the flow of water from the source through treatment, storage, distribution, use, waste collection, treatment and discharge back into the environment. 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. Sludge Digestion & Solids Handling: Where would toxicants least likely cause a problem for a wastewater treatment plant? (3) reddish brown, Activated Sludge: Class 4 Study Guide Wastewater Operator Certification . Safety: Residual Solids Management: d. heavy metals, Activated Sludge: Math questions include the method to solve. d. low operating costs, as they are east to run, Secondary Treatment: Always pour the acid into the water. Sorry, your blog cannot share posts by email. Which one of the following best defines the term stray-current corrosion? 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! a. sand drying beds 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"}}. d. about the same volume as the grit being removed. !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? d. temperature. Incoming Wastewater Testing Monitoring of influent wastewater is an important component of operating an activated sludge plant. what would happen if too much sludge was added to an anaerobic digester? . d. brown Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). 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. Basic Chemistry: Wastewater class 3 practice exam eXam Aswers Search Engine Submit Wastewater . Basic Concepts. (2) reddish brown What is the chemical formula for sulfuric acid? Rotating Biological Contactors: If an induction motor is rated at 40 amps for a full-load current, what will be the most probable starting sequence amps required? a. BOD USE OF CALCULATORS ON THE EXAM 10 . b. contact stabilization d. 8 stages, Rotating Biological Contactors: temperature favoring the growth of a particular species of algae. a. incinerated material feathr("fly", "5e558ae66f594e4be753166e"); Edwardsville, IL 62026-1075 (618) 650-2030 . Pool Chemistry Disinfection: b. wet air oxidation Enhanced Biological (Nutrient) Control: The exam consists of 100 multiple choice questions. Another solids treatment thickening process would be: c/ dewatering Activated Sludge: c. temperature .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} b. primary clarification Deep. 0000045196 00000 n How often should the mainshaft bearings be greased in a rotating biological contactor unit? a. clarifier Monitor electrical equipment E.coli Test Operate safety equipment . support for the floating cover when it is at its lowest point. Digestion is working properly if the volatile solids content of the raw sludge has been reduced by ___-___%, Sludge Digestion & Solids Handling: What class of fire involves sodium and magnesium? a. organic toxicants Hydrogen Sulfide will exist in a system depending on the presence or absence of_____. b. extended aeration activate sludge Humus sludge is biomass from, Trickling Filters: This class addresses all the test topics and provides the operators with all the study material necessary to prepare for the exam. . 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. b. CO2 c. hypochlorite acid Residual Solids Management: ._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} b. using masking agents d. belt presses, Wastewater Solids Processing: Press question mark to learn the rest of the keyboard shortcuts, https://royceu.com/Public/PracticeQuizes.aspx. return sludge/raw wastewater, Activated Sludge: Sludge Digestion & Solids Handling: Maintenance: Math 14/08/2014 Milliliters of sample used: 2. c. vacuum filters 0000001026 00000 n they prevent the cover from scraping the sidewall. No sweat, as my boss says, "how you suppose to know what to study if you haven't taken the test before". No stress. proper operation. 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 Wastewater Grade 2 t/f. d. organic toxicants, Activated Sludge: d. positive displacement. American Water College. How often should the motor bearings be greased in a rotating biological contactor unit? 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 question has been validated through a process of panel review. d. scum, Residual Solids Management: My score on the exam was a B+ for the level one, my score for other exams have been much better. c. power requirements are low d. organisms available to treat the wastes, Activated Sludge: b. pH A pond that contains oxygen in its upper layers and lacks oxygen in the bottom layer is classified as, Waste Treatment Ponds: c. tapered aeration how often should the thermal valves be dismantled for service? 2017 Wastewater Treatment Operator Formula/Conversion Table. Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. This test is designed to simulate the actual Wastewater exam as closely as possible. Adequate ___BOD, ____nitrogen, ____Phosphorous ratio for microorganisms to grow is usually Certification Exam Prep; Continuing Education; Certificate Program; Utility Management Typically what average percent of total solids in a domestic wastewater, both dissolved and suspended, are inorganics. % Waste Treatment Ponds: b. they can handle a large range of flows Along with the practice exam you will also be able to read and learn the secret of achieving top scores on the State Exam. b. yellow a. hair 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? c. has less flocculant than primary sludges The effluent from which process is called mixed liquor How far out from the water's edge should waste pond samples be collected? Secondary Treatment: The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. anatomy and physiology. Wastewater sources & characteristics: (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. excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: