Wastewater sources & characteristics: When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? d. raw sewage. 4 They all produce high volumes of wastewater. Basic Chemistry: d. composting, Wastewater Solids Processing: ._2Gt13AX94UlLxkluAMsZqP{background-position:50%;background-repeat:no-repeat;background-size:contain;position:relative;display:inline-block} What do skirts provide in anaerobic digesters? Wastewater Solids Processing: a. sand drying beds High suspended solids and BOD are most probably associated with which type of organisms? DO (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 . Please select the correct language below. a)Clean settling basins and dispose of sludge. Was it a 3 in collections or treatment? 0000000607 00000 n a. step aeration Approximately what % of the dissolved solids in wastewater are organics, Wastewater sources & characteristics: The program suggests purchasing their books from Sacramento. Which one of the following is the best type of valve to use to dampen a water hammer? Wastewater Solids Processing: Waste Treatment Ponds: American Water College. What does the wastewater industry call sludge that is only partially digested? The wastewater operator certification program is a mandatory program. Enhanced Biological (Nutrient) Control: c. tapered aeration Loading Rates. Sludge Digestion & Solids Handling: c. reduce the number of weeds when taking a bacteria sample, the sample bottle should be filled with water. Safety: Activated Sludge: Water Treatment Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. 2,323 Gal./Min. b. using masking agents Wide, and 14 ft. Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . DO 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. 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\. d. temperature. -the tank is exhibiting high rates of foaming. d. phosphorous, Activated Sludge: Sludge Digestion & Solids Handling: The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. When is the pH in a waste pond the lowest? Add to folder Sludge Digestion & Solids Handling: Sludge Digestion & Solids Handling: 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 2017 Wastewater Treatment Operator Formula/Conversion Table. d. chemical oxidation, Wastewater Solids Processing: 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. d. remove sludge from grit channel, Odor Control: Primary treatment is not required in which modified activated sludge process? Which one of the following types of substances can be toxic to wastewater plants using biological systems and may adversely affect potable water supplies downstream? 0000001315 00000 n c. sludge age . Humus sludge is biomass from, Trickling Filters: Activated Sludge: b. COD WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. 10 PPM. the books are a tad overkill for the ABC tests. ._12xlue8dQ1odPw1J81FIGQ{display:inline-block;vertical-align:middle} Smith, Michael Abbott. a. pH the clarifier is hydraulically overloaded, Effluent Disposal: Activated Sludge Module 4 . Class 4 Study Guide Wastewater Operator Certification . When the influent load to a wastewater treatment plant changes rapidly, the best test to control purposes is Hydrogen Sulfide will exist in a system depending on the presence or absence of_____. Need-to-Know Criteria outline the content that will be covered on the 2017 ABC standardized exams. 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. Secondary Treatment: Which one of the following species is ozone? Safety: Study materials to help you succeed. 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. c. volatile-acid-alkalinity ratio b. a little organic material a. organic toxicants d. mixing, Sludge Digestion & Solids Handling: What modified activated sludge process does not require primary treatment? The last stage is the treatment of RMW. 0000004525 00000 n For more practice problems: https://www.waterandwastewatercourses.com/To enroll in an online course: https://courses.waterandwastewatercourses.com/Grade 1: . + Just wanted to make sure Im looking at the right tests/guides. Typically, an anaerobic digester will produce about 30%-35% by volume of which gas? Motor insulation material comes in four classes and the are based on_______, Maintenance: Milliliters of sample used: 2. d. extended aeration activated sludge. Equilibrium system and stress factors a. heavy metals Are you saying that the questions were easier on the actual test or harder? ._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)} 0000001543 00000 n b. extended aeration activate sludge 100:2:1 b. Wastewater and some forms of industrial runoff can be treated and purified by algae (Algae Basics. Wastewater Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. Past Exam Results. This course compiles 14 individual lessons into one course to make 16 hours. Sludge Digestion & Solids Handling: How often should the oil in the chain casing be changed? Please sign in to share these flashcards. 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 Wastewater Solids Processing: Bacteria in an anaerobic digester will effectively utilize: No worry. Edwardsville, IL 62026-1075 (618) 650-2030 . What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? (b) What is the magnification of the image of the fish? Sedimentation and Flotation: The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. 0000001026 00000 n b. are more fibrous All rights reserved. 2 Class 4E . d. hydrogen sulfide. 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: Secondary Treatment: What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? MATERIAL AND METHODS Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: c. add treatment chemicals g.async=!0,g.src=t,h.appendChild(g)} How often should flame arresters be service on anaerobic digesters? 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? 360mg/l. Basic Chemistry: a. potassium d. fats. What term describes the condition that exists when the source of the water supply is below the centerline of the pump? ._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} You have to finish following quiz, to start this quiz: When organic wastes are discharged to receiving water, oxygen is depleted by. What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? PRACTICE EXAM 13-20 . c. temperature Pre-Lab Wastewater Collections Grade 2 Practice Test California Wastewater Collections Grade 2 Practice Test California Water and Wastewater Courses For Operator Certification. -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. Approved Training Provider - Indiana, Illinois, Ohio, Delaware, Alabama, Maryland, Idaho, North Carolina, South Carolina, Virginia, West Virginia, Tennessee and Kentucky. A solids treatment stabilization process method would be: 0000002075 00000 n a. increase air in aeration system Disinfection: What type of feeder would always feed a gas? d. organisms available to treat the wastes, Activated Sludge: -pH is 7.2. b. oils and greases Sample Question. The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: illinois class 4 wastewater practice test. 0000001005 00000 n Math guides, tutorials, tips, and practice quizzes. Regarding waste pond lab sampling, which parameter is sampled at the influent of the pond? Answer the following question to test your understanding of the . The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. Discussion of water and wastewater treatment processes and technology. If a sludge cake consists of 60% solids, where did it mostly likely originate from? What is the only acceptable breathing device to wear while handling chlorine leaks? Test 2 - banking. b. an anaerobic digester Took the class III exam from the ABC program yesterday and felt very under knowledge. Rotating Biological Contactors: c. rotating feeder What is the most probable cause for excessive algae in the effluent of a wastewater pond? What do ballast blocks provide in anaerobic digesters? a. thickening se&{1k">N0{5yur-;5Y5#[ !q& kH'U!p_,JjrDGM&tv.~Qsn,3u}L> b)>c^\!rA[6GOE;5N8&6\ciu2k 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. If the sludge drying beds had a decaying odor, what would be the most likely solution? b. Royceu.com is where you wanna go. 4.5 in. c. composting What is the optimum temperature range of mesophile bacteria in anaerobic digestion? c. applying chlorine b. phosphoric acid WEF/ABC/C 2 EP Wastewater Operators' Guide to Preparing for the Certification Examination. What is the difference between a weak acid and a strong acid? Wastewater treatment systems protect public health and the environment only if they are being properly operated and maintained. What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? The small wastewater system certificate is a "hybrid" certificate, combining both wastewater treatment and wastewater collection expertise for communities that serve fewer than 3,300 persons. b. BOD ._3K2ydhts9_ES4s9UpcXqBi{display:block;padding:0 16px;width:100%} Class K Study Guide Industrial Wastewater Operator Certification . . What can be done to the trickling filter to solve high effluent suspended solids? Please find links to the Certification Information Pages below for each state: Alabama - http://www.adem.state.al.us/programs/water/opcertification.cnt Alaska - TABLE OF CONTENTS . Practice Exam #1 Practice Exam #1 - Answers Practice Exam #2 - Answers Practice Exam #2 Practice Exam #1 - Answers Math 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? Activated Sludge: Classes will Start September 7, 2021 and meet twice per week (Tues & Thurs) for six weeks, ending on October 14, 2021. The exam consists of 100 multiple choice questions. Class 2 wastewater operator certification examination. Process wastewater can Mr Jose b. The effluent from which process is called mixed liquor Aerobic ponds usually range in depth from ___-____ft, Wastewater Treatment Facilities: The responses provided up to the point of interruption will be Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. No stress. 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 The ABC formula sheet is provided, and you must bring a non-programmable calculator. Sludge Digestion & Solids Handling: 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. 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. d. plunger feeder, Solids removal from secondary effluent: Student Resources. Phone (800) 666-0206. A wastewater [plant has a train of three rotating biological contactor (RBC) units. a. I included the answers at the bottom of this page. Im trying to pass n-2 failed twice by two points . When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: 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: Disinfection: _____? a. -all blowers are running. If the level falls in 10.3 min. 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: while the pump is running, what is the pump rate in GPM? c. composting During the exam, . These practice tests are a great study tool to add to your Water Distribution Operator Exam studying process. Waste Treatment Ponds: 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: Surface loading and detention time is a clarifier are directly related to: Sedimentation and Flotation: a. BOD These practice questions and answers are brought to you free of charge by RoyCEU.com. Mixed liquor is a combination of what 3 things? 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. Note: The Grade 7 Upgrade Application must be mailed to the Commonwealth of Mass, as shown on the form. .LalRrQILNjt65y-p-QlWH{fill:var(--newRedditTheme-actionIcon);height:18px;width:18px}.LalRrQILNjt65y-p-QlWH rect{stroke:var(--newRedditTheme-metaText)}._3J2-xIxxxP9ISzeLWCOUVc{height:18px}.FyLpt0kIWG1bTDWZ8HIL1{margin-top:4px}._2ntJEAiwKXBGvxrJiqxx_2,._1SqBC7PQ5dMOdF0MhPIkA8{vertical-align:middle}._1SqBC7PQ5dMOdF0MhPIkA8{-ms-flex-align:center;align-items:center;display:-ms-inline-flexbox;display:inline-flex;-ms-flex-direction:row;flex-direction:row;-ms-flex-pack:center;justify-content:center} Wastewater Grade 2 t/f. ._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}