The allowable voltage above or below the value stamped on a motor's nameplates is_____%, Maintenance: a. nitrate What is the purpose of a draft tube in an anaerobic sludge digester? b. cyanide The exam consists of 100 multiple choice questions. what would happen if too much sludge was added to an anaerobic digester? What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? b. mineral oils b. concentration The course is designed to prepare operators for the Grade 2, 3, and 4 Alabama Wastewater Certification Exams. 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. V. WHAT OPERATORS NEED TO KNOW 3-9 . A solids treatment dewatering process method would be" 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. Mixed liquor is a combination of what 3 things? c. reduce the number of weeds Water and Wastewater Microbiology" Illinois EPA certifies the technical competency of . Which chemical in the following list is the strongest disinfectant? Sludge Digestion & Solids Handling: And what online studies did you use? d. flood the filter. . During the exam, . what type of waste solids would most likely be sent to a rendering reclamation? Final DO: 5.9. name the laboratory glassware that can be used to heat liquids in an open flame? c. acids and alkalies Secondary Treatment: .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} !function(f,e,a,t,h,r){if(!f[h]){r=f[h]=function(){r.invoke? b. contact stabilization Which one of the following species is ozone? By measuring the pump output. 14/08/2014 The exams are aimed at your overall knowledge and experience in the field as an operator, not just skills and experience of the system you are currently running. Sedimentation and Flotation: d. extended aeration activated sludge. a. sand drying beds + Pool Chemistry Sludge Digestion & Solids Handling: Sludge Digestion & Solids Handling: Math WEF/ABC/C 2 EP Collection Systems Operators' Guide to Preparing for the Certification Examination. Study key C amp D IN gov. ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} I just challenged the Water Treatment level 1 exam this Monday and noticed there were questions regarding distribution on it as well. 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. d. about the same volume as the grit being removed. -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. Calculate the BOD given the information: Initial DO: 8.3. 2017 Wastewater Treatment Operator Formula/Conversion Table. We weren't able to detect the audio language on your flashcards. Activated Sludge Module 3 . 8 0 obj Class 4 Wastewater IL 4.0 (1 review) Term 1 / 88 What do you do if a sewer line is plugged? Activated Sludge: b. an anaerobic digester a. incinerated material All occupied trenches 4 or more feet deep must provide exits at. To see these classes - CLICK HERE. b. primary clarification What is the most accurate measure of the organisms present in an aerator for treating incoming wastes? 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 0000045196 00000 n DO Usually, what is the % accuracy of a graduated cylinder and burette? .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} c. rotating feeder What class of fire involves sodium and magnesium? What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: When preparing a sample for laboratory analysis that involves acid and water, how should the sample be poured? d. remove sludge from grit channel, Odor Control: /*# 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. c. composting c)Replenish chemical stock. 4 stages c/ dewatering r.queue=[],r.loaded=1*new Date,r.version="1.0.0", Wastewater sources & characteristics: 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"}}. If the head works in a wastewater treatment plant had an H2S odor, what would be the most likely solution? How much of the solids should be wasted each week in the summer form a package wastewater treatment plant for the best quality? 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: d. 8 stages, Rotating Biological Contactors: c. aerobic pond Im trying to pass n-2 failed twice by two points . 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 problem with odors from trickling filters may be solved by: a. screenings c. power requirements are low Wastewater Solids Processing: A pond that depends on fermentation, is odorous, and is used mainly for processing industrial wastes is classified as, Waste Treatment Ponds: The most common imbalance in the operation of an anaerobic sludge digester is, Sludge Digestion & Solids Handling: .s5ap8yh1b4ZfwxvHizW3f{color:var(--newCommunityTheme-metaText);padding-top:5px}.s5ap8yh1b4ZfwxvHizW3f._19JhaP1slDQqu2XgT3vVS0{color:#ea0027} @keyframes ibDwUVR1CAykturOgqOS5{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}._3LwT7hgGcSjmJ7ng7drAuq{--sizePx:0;font-size:4px;position:relative;text-indent:-9999em;border-radius:50%;border:4px solid var(--newCommunityTheme-bodyTextAlpha20);border-left-color:var(--newCommunityTheme-body);transform:translateZ(0);animation:ibDwUVR1CAykturOgqOS5 1.1s linear infinite}._3LwT7hgGcSjmJ7ng7drAuq,._3LwT7hgGcSjmJ7ng7drAuq:after{width:var(--sizePx);height:var(--sizePx)}._3LwT7hgGcSjmJ7ng7drAuq:after{border-radius:50%}._3LwT7hgGcSjmJ7ng7drAuq._2qr28EeyPvBWAsPKl-KuWN{margin:0 auto} 10 PPM. The purpose of the treatment is to change the biological composition or the characteristics of the waste so that it Wastewater can be formed from domestic, industrial, agricultural, commercial activities or any combination of these. Certification Exam Prep; Continuing Education; Certificate Program; Utility Management If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? The current imbalance between legs of polyphase motors should never exceed____%, Maintenance: acid fermentaters would predominate and pH would decrease, Sludge Digestion & Solids Handling: d. dissolved oxygen, Wastewater Solids Processing: Chlorine gas has a specific gravity of, Rocks/Screens/Comminutors & Grit Removal: When is the pH in a waste pond the highest? ._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} c. secondary sludge -pH is 7.2. Need to know criteria. This makes it harder to write exams. b. trickling filter 2,323 Gal./Min. The industrial Class Kand 10 -WR (general) exam has a total of 14 questions, 7 multiple choice and 7 short answer/essay. CA Grade 4 amp 5 Wastewater Math Part 2 of 3 YouTube. WasteWater Operator Certification, Grade 2, Wastewater Treatment Facilities: 0000001543 00000 n Safety: 0000001005 00000 n 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. All rights reserved. Disinfection: Class 2 wastewater operator certification examination. b. proper operation. 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: %PDF-1.2 (3) reddish brown, Activated Sludge: How often should the oil in the chain casing be changed? Wastewater sources & characteristics: -all blowers are running. Typically, an anaerobic digester will produce about 30%-35% by volume of which gas? b. vibrating trough Press question mark to learn the rest of the keyboard shortcuts, https://royceu.com/Public/PracticeQuizes.aspx. b. F/M b. vibrating trough If you want more practice problems, click here . Equilibrium system and stress factors We'll bring you back here when you are done. Safety: The Wastewater Operator Certification Program is intended to protect public health, environmental quality, and the financial investment of wastewater facilities. Wastewater Solids Processing: c. has less flocculant than primary sludges MATERIAL AND METHODS a bacteria sample must be mailed so that the lab analysis can begin no later than. Introducing Cram Folders! b. CO2 b. a little organic material d. pure oxygen, Activated Sludge: You have already completed the quiz before. Microorganisms that are methane fermenters will only produce in the pH range of, Sludge Digestion & Solids Handling: What do roller guides provide in an anaerobic digester? The recommended minimum depth for a waste pond is". b. filter presses c. hypochlorite acid a. polishing pond c. cyanides Sludge Digestion & Solids Handling: I found a lot of the 3 questions were around anaerobic digestion so I focused a lot on that and it helped me pass. Saprophytic microorganisms are also called: Sludge Digestion & Solids Handling: ABC's website provides Need to Know Criteria for exams. Basic Concepts. Following the activated sludge what process modification is very sensitive to bulking? a.secondary clarification $32 c. $36 d. $42.50 Process wastewater can Mr Jose c. carbon in organic matter a. How ofter should the drive bearings be greased in a rotating biological contactor unit? The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? 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? d. COD, Trickling Filters: 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 b. twice per day a. clarifier What about the removal of suspended solids? Another solids treatment thickening process would be: Sedimentation and Flotation: Wastewater Solids Processing: 0000002114 00000 n Chlorine disinfects water much slower at a pH around 7.0 than at a pH over 8.0. 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. ._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)} Maintenance: d. 100:12:5, Trickling Filters: c. flammable oils Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). If the ponds or lagoons had an ammonia odor, what would be the most likely solution? Sludge Digestion & Solids Handling: % How do you calibrate a chemical feed pump? Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. c. DO c. solids concentration c. gasoline products Hence you can not start it again. If an activated sludge plant is hit with a high organic load, what will most like occur in the aeration tank? ._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} a. reducing the number if weeds that is they must test what they are supposed to test. 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Odor Control: Find out how you can intelligently organize your Flashcards. Which of the following groups of microorganisms are found in a good settling mixed liquor? 0000001026 00000 n 0000004525 00000 n ._2cHgYGbfV9EZMSThqLt2tx{margin-bottom:16px;border-radius:4px}._3Q7WCNdCi77r0_CKPoDSFY{width:75%;height:24px}._2wgLWvNKnhoJX3DUVT_3F-,._3Q7WCNdCi77r0_CKPoDSFY{background:var(--newCommunityTheme-field);background-size:200%;margin-bottom:16px;border-radius:4px}._2wgLWvNKnhoJX3DUVT_3F-{width:100%;height:46px} These Study Guides are meant to help prepare operators for their Waste Water Treatment Operators Certification Exams. the Illinois EPA requires that routine bacteria samples to be taken and analyzed how often. b. COD h=e.getElementsByTagName("head")[0]||e.getElementsByTagName("script")[0].parentNode; How far out from the water's edge should waste pond samples be collected? ABC wastewater exam class III : r/Wastewater. /Length 9 0 R the floating cover on an anaerobic should be inspected how often? Sludge Digestion & Solids Handling: a. no organics at least two pipe diameters above the rim. d. stabilization, Wastewater Solids Processing: What is the solids treatment method that uses a chemicals and mixes the recycled flow with the process residual flow in a reactor? Solids removal from secondary effluent: When the pump is not running, the water rises in 3 min. A solids treatment thickening process method would be a. chlorine Which method would not be used to feed LIQUID chemicals? 2,380 Gal./Min. c. tapered aeration b. toxic gases They do list the books they pull info from. Available to Treatment and Distribution Members. Given the following information: -aerobic digester dissolved oxygen level is at 3.5 mg/L. when taking a bacteria sample, the sample bottle should be filled with water. -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. Class 4 Study Guide Wastewater Operator Certification . 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: What would be the cause of a shorted-winding in a motor? ._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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