The responses provided up to the point of interruption will be ABC standardized exams are administered with an ABC Formula/Conversion Table containing mathematical formulas and common abbreviations that may be present on the exam. What do ballast blocks provide in anaerobic digesters? Which type of feeder would most likely feed clear solutions? What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? while the pump is running, what is the pump rate in GPM? How often should the liquid level be checked on a digester to prevent overfilling? 50 terms. d. about the same volume as the grit being removed. Wastewater sources & characteristics: c. DO d. chemical addition with counter masking or masking agents, chemical addition with counter masking or masking agents. WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination. a. rotameter Maintenance: 4 feet deep 8 feet deep 3 feet wide 7) A wet well is 9 feet deep by 21 feet in diameter. a. thickening The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: -all blowers are running. 2 Class 4E . Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: Filter sloughings are a product of: Sedimentation and Flotation: b. wet air oxidation Waste Treatment Ponds: What organism would most likely enhance the penetration of oxygen into the activated sludge, Rocks/Screens/Comminutors & Grit Removal: a. It makes it a lot more challenging when, say, your system is just lagoons and they are asking questions about advanced processes. 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 a.complete mix aeration The most common imbalance in the operation of an anaerobic sludge digester is, Sludge Digestion & Solids Handling: ._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)} What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? All rights reserved. A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: 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? Sorry, this post was deleted by the person who originally posted it. Sedimentation and Flotation: Rainwater runoff is also considered as w Name ____________________________________ 2,135 Gal./Min. Which property uniquely identifies a chemical element? Sludge Digestion & Solids Handling: Test yourself before taking your state exam. Which one of the following ius the least important in the successful operation of an activated sludge plant? Chlorine disinfects water much slower at a pH around 7.0 than at a pH over 8.0. . By the way, please keep in mind these problems are for anyone who is pursuing the first two certification levels. Secondary Treatment: Aerobic ponds usually range in depth from ___-____ft, Wastewater Treatment Facilities: a. improve housekeeping Available to Treatment and Distribution Members. Process wastewater can Mr Jose Wastewater Works Operator Class 4 Wastewater Treatment Operator Class I - 2017 Edition Wastewater Treatment Wastewater Treatment, Collection, Industrial . This 5 question practice test is a demo of the full, 100 question, practice test available to members. c. composting The RX Drug Company has just purchased a capsulating machine for $76,000. Sorry, your blog cannot share posts by email. 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? a. oils and greases Activated Sludge: b. NO2 Residual Solids Management: 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: what would happen if too much sludge was added to an anaerobic digester? Hydrogen Sulfide will exist in a system depending on the presence or absence of_____. Study Guide . Hb```f``d30 P9eVcrV),VA`}. 78 terms. The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? VIII. 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. Residual Solids Management: The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. Water Distribution Certification practice tests, flashcards, study guides, and more. Activated Sludge: a. organic toxicants a. incinerated material c. flammable oils That may seem obvious but, too many people take the certification exam with little or no preparation. 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 Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. .c_dVyWK3BXRxSN3ULLJ_t{border-radius:4px 4px 0 0;height:34px;left:0;position:absolute;right:0;top:0}._1OQL3FCA9BfgI57ghHHgV3{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;-ms-flex-pack:start;justify-content:flex-start;margin-top:32px}._1OQL3FCA9BfgI57ghHHgV3 ._33jgwegeMTJ-FJaaHMeOjV{border-radius:9001px;height:32px;width:32px}._1OQL3FCA9BfgI57ghHHgV3 ._1wQQNkVR4qNpQCzA19X4B6{height:16px;margin-left:8px;width:200px}._39IvqNe6cqNVXcMFxFWFxx{display:-ms-flexbox;display:flex;margin:12px 0}._39IvqNe6cqNVXcMFxFWFxx ._29TSdL_ZMpyzfQ_bfdcBSc{-ms-flex:1;flex:1}._39IvqNe6cqNVXcMFxFWFxx .JEV9fXVlt_7DgH-zLepBH{height:18px;width:50px}._39IvqNe6cqNVXcMFxFWFxx ._3YCOmnWpGeRBW_Psd5WMPR{height:12px;margin-top:4px;width:60px}._2iO5zt81CSiYhWRF9WylyN{height:18px;margin-bottom:4px}._2iO5zt81CSiYhWRF9WylyN._2E9u5XvlGwlpnzki78vasG{width:230px}._2iO5zt81CSiYhWRF9WylyN.fDElwzn43eJToKzSCkejE{width:100%}._2iO5zt81CSiYhWRF9WylyN._2kNB7LAYYqYdyS85f8pqfi{width:250px}._2iO5zt81CSiYhWRF9WylyN._1XmngqAPKZO_1lDBwcQrR7{width:120px}._3XbVvl-zJDbcDeEdSgxV4_{border-radius:4px;height:32px;margin-top:16px;width:100%}._2hgXdc8jVQaXYAXvnqEyED{animation:_3XkHjK4wMgxtjzC1TvoXrb 1.5s ease infinite;background:linear-gradient(90deg,var(--newCommunityTheme-field),var(--newCommunityTheme-inactive),var(--newCommunityTheme-field));background-size:200%}._1KWSZXqSM_BLhBzkPyJFGR{background-color:var(--newCommunityTheme-widgetColors-sidebarWidgetBackgroundColor);border-radius:4px;padding:12px;position:relative;width:auto} The current imbalance between legs of polyphase motors should never exceed____%, Maintenance: Need to know criteria. acid fermentaters would predominate and pH would decrease, Sludge Digestion & Solids Handling: Royceu.com is where you wanna go. This course compiles 14 individual lessons into one course to make 16 hours. 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. Safety: Sludge Digestion & Solids Handling: When is the pH in a waste pond the highest? 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. To see these classes - CLICK HERE. 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\. a. increase air in aeration system Virtual Workshop Schedule; Date Title Location Cost; 1/9-1/13: Class D & C Water: . ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} a. total solids Activated Sludge Module 3 . The demo is available to both certification programs and trainers to help prepare individuals for taking a computerized exam. a. BOD that is they must test what they are supposed to test. Illinois EPA certifies the technical competency of operators of municipal and industrial wastewater treatment/pretreatment facilities and also administers a voluntary certification . The specific gravity standard for gases is_______, Basic Chemistry: }(window,document,"script","https://cdn.feathr.co/js/boomerang.min.js","feathr"); Student Resources. How many stages are usually present in the rotating biological contactor process? 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: One solids treatment thickening process would be: The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: how often should the thermal valves be dismantled for service? H2SO4. I passed the next time. Wastewater Operator Certification Exam Schedule You must have a Letter of Admission to take the wastewater operator examination. d. activated sludge. If the level falls in 10.3 min. Sludge Digestion & Solids Handling: These practice tests are a great study tool to add to your Water Distribution Operator Exam studying process. The major gas produced by aerobic decomposition is:_______. Waste Treatment Ponds: d. raw sewage. c. 100:10:3 Jake Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? ._3bX7W3J0lU78fp7cayvNxx{max-width:208px;text-align:center} These questions are similar to, but not the same as, the questions you are likely to encounter on your certification exam. _____? c. F/M ration d. flooding the filter, Trickling Filters: Which one of the following types of wastewater ponds listed below is not classified like the other three? A wastewater [plant has a train of three rotating biological contactor (RBC) units. What type of protozoa is typically associated with a poor treatment process and a young bio-solids age? c. sludge age If the ponds or lagoons had an ammonia odor, what would be the most likely solution? d. 100:12:5, Trickling Filters: Pool Chemistry Outline a. BOD Pre-Lab Sludge Digestion & Solids Handling: What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: a. detergent c. orifice Practice Tests. 122 terms. When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: Secondary clarifiers are usually located after: 360mg/l. c. once per day . c. has less flocculant than primary sludges Which one of the following types of substance is not soluble in water and has the potential of creating explosive conditions? a. reducing the number if weeds Which one of the following solids treatment methods can be classified as both stabilization and dewatering? too much lime has been added, reducing gas production. Test 2 - banking. 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. Disinfection: d. pure oxygen, Activated Sludge: Secondary Treatment: 0000045118 00000 n The full practice test is randomly generated from a database of hundreds of questions, meaning no two test are ever exactly the same. How often should the mainshaft bearings be greased in a rotating biological contactor unit? c. sludge drying bed or pond a. high sludge production 2019 Association of Boards of Certification. All rights reserved. Sedimentation and Flotation: d. low operating costs, as they are east to run, Secondary Treatment: (Time of day), Waste Treatment Ponds: Sludge Digestion & Solids Handling: 50%. Cram has partnered with the National Tutoring Association, Conventional Wastewater Treatment Case Study, Lab Report: Phalyco-Chemical Characteristics Of Chemical Acid, How Does Hypochlorous Acid Affect A Swimming Pool. Which one of the following is the best type of valve to use to dampen a water hammer? now if it's bomb after bombeh, i might make ya take a break for a bit before going again. 2014 Click to Rate "Hated It" Click to Rate "Didn't Like It" Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? c. about half the volume as the grit being removed The panel is comprised of 8 experts who Loading Rates. c. power requirements are low Typically what average percent of total solids in a domestic wastewater, both dissolved and suspended, are inorganics. Sludge Digestion & Solids Handling: -high surface turbulence. c. aerobic pond d. positive displacement. What would be the most probable cause for gas leaking through the pressure relief valve on the digester's roof? And what online studies did you use? what type of waste solids would most likely be sent to a rendering reclamation? Water Environment Federation Bookstore. What about the removal of suspended solids? b. vibrating trough Bacteria are in the ______kingdom, Activated Sludge: Regarding waste pond lab sampling, which parameter is sampled at the influent of the pond? Activated Sludge: DO Always pour the acid into the water. d. acids and alkalies, Activated Sludge: Why do the strings used for the lowest-frequency notes on a piano normally have wire wrapped around them? Answer the following question to test your understanding of the . If an activated sludge plant is hit with a high organic load, what will most like occur in the aeration tank? f.FeathrBoomerang=r;var g=e.createElement(a), I took the provided training seminars but with COVID they're all zoom . WEF/ABC/C 2 EP Collection Systems Operators' Guide to Preparing for the Certification Examination. Maintenance: What type of fire extinguishers should be used on electrical fires? d. stabilization, Wastewater Solids Processing: Which one of the following parameters can be preserved for later lab analysis? You must sign in or sign up to start the quiz. d. step aeration, Activated Sludge: Note: The Grade 7 Upgrade Application must be mailed to the Commonwealth of Mass, as shown on the form. If the primary sedimentation unit to a wastewater treatment plant has an H2S odor, what would be the most likely solution? Sludge Digestion & Solids Handling: Solids removal from secondary effluent: DO a. heat treatment also, i wouldn't be worried about retesting. What do roller guides provide in an anaerobic digester? c. increase mixing Activated Sludge: Sludge Digestion & Solids Handling: d. heavy metals, Activated Sludge: The last stage is the treatment of RMW. d. temperature. Sludge Digestion & Solids Handling: Which chemical in the following list is the strongest disinfectant? DERFSTA. What is the optimum temperature for digester substances? Microbiology. A problem with odors from trickling filters may be solved by: 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"}}. Mixed liquor is a combination of what 3 things? !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? what % of the dissolved solids in wastewater are inorganics, Wastewater sources & characteristics: ._9ZuQyDXhFth1qKJF4KNm8{padding:12px 12px 40px}._2iNJX36LR2tMHx_unzEkVM,._1JmnMJclrTwTPpAip5U_Hm{font-size:16px;font-weight:500;line-height:20px;color:var(--newCommunityTheme-bodyText);margin-bottom:40px;padding-top:4px;text-align:left;margin-right:28px}._2iNJX36LR2tMHx_unzEkVM{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex}._2iNJX36LR2tMHx_unzEkVM ._24r4TaTKqNLBGA3VgswFrN{margin-left:6px}._306gA2lxjCHX44ssikUp3O{margin-bottom:32px}._1Omf6afKRpv3RKNCWjIyJ4{font-size:18px;font-weight:500;line-height:22px;border-bottom:2px solid var(--newCommunityTheme-line);color:var(--newCommunityTheme-bodyText);margin-bottom:8px;padding-bottom:8px}._2Ss7VGMX-UPKt9NhFRtgTz{margin-bottom:24px}._3vWu4F9B4X4Yc-Gm86-FMP{border-bottom:1px solid var(--newCommunityTheme-line);margin-bottom:8px;padding-bottom:2px}._3vWu4F9B4X4Yc-Gm86-FMP:last-of-type{border-bottom-width:0}._2qAEe8HGjtHsuKsHqNCa9u{font-size:14px;font-weight:500;line-height:18px;color:var(--newCommunityTheme-bodyText);padding-bottom:8px;padding-top:8px}.c5RWd-O3CYE-XSLdTyjtI{padding:8px 0}._3whORKuQps-WQpSceAyHuF{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-actionIcon);margin-bottom:8px}._1Qk-ka6_CJz1fU3OUfeznu{margin-bottom:8px}._3ds8Wk2l32hr3hLddQshhG{font-weight:500}._1h0r6vtgOzgWtu-GNBO6Yb,._3ds8Wk2l32hr3hLddQshhG{font-size:12px;line-height:16px;color:var(--newCommunityTheme-actionIcon)}._1h0r6vtgOzgWtu-GNBO6Yb{font-weight:400}.horIoLCod23xkzt7MmTpC{font-size:12px;font-weight:400;line-height:16px;color:#ea0027}._33Iw1wpNZ-uhC05tWsB9xi{margin-top:24px}._2M7LQbQxH40ingJ9h9RslL{font-size:12px;font-weight:400;line-height:16px;color:var(--newCommunityTheme-actionIcon);margin-bottom:8px}
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