illinois class 4 wastewater practice test

0000045196 00000 n How much of the solids should be wasted each week in the summer form a package wastewater treatment plant for the best quality? typically, how often should sediment and drip traps be drained in cold water? b. complete mix aeration The ABC formula sheet is provided, and you must bring a non-programmable calculator. Non -sewage: This is discharged by manufacturing processes and commercial enterprises. What term describes the condition that exists when the source of the water supply is below the centerline of the pump? What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? 3 Study only Chapter 16 (Laboratory Procedures and Chemistry) of Book #2. Approved Training Provider - Indiana, Illinois, Ohio, Delaware, Alabama, Maryland, Idaho, North Carolina, South Carolina, Virginia, West Virginia, Tennessee and Kentucky. Maintenance: Disinfection: 2 Class 4E . Which one of the following species is ozone? Wastewater Operator Certification Exam Book List. If a secondary clarifier has floatable debris in the effluent, what is the most likely cause? a. gravity What is the solids treatment method that chemically treats the residual flow, then spread evenly over a porous belt? 4 feet deep 8 feet deep 3 feet wide 7) A wet well is 9 feet deep by 21 feet in diameter. H}Wr8[$HB$"&.ZO*JJ4p8(To>|H^sGGrB*G*f%G. -the tank is exhibiting high rates of foaming. 0000004525 00000 n 8 0 obj Safety: b. NO2 c)Replenish chemical stock. a. high sludge production 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 is the most accurate measure of the organisms present in an aerator for treating incoming wastes? 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: 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. 14/08/2014 Activated Sludge Module 3 . Which organism wold most probably be associated with moderate sludge age and effluent water quality, Wastewater sources & characteristics: Wastewater Certification Information By State October 30, 2018 We have many people contact us regarding Wastewater Operator Certification in many states. Statistics from 2019 HERE. Another solids treatment thickening process would be: a. BOD Regarding waste pond lab sampling, which parameter is sampled at the influent of the pond? If the level falls in 10.3 min. e. black Study Guide . . Wastewater Solids Processing: ._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} d. once every other day, Sludge Digestion & Solids Handling: Which one of the following solids treatment methods can be classified as both stabilization and dewatering? Typically, what average percent of total solids in domestic wastewater, both dissolved and suspended, are inorganics? What modified activated sludge process does not require primary treatment? Class 4 Wastewater IL 4.0 (1 review) Term 1 / 88 What do you do if a sewer line is plugged? 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. Class 4 Study Guide Wastewater Operator Certification . If this is your first exam attempt, a short history of the current exam development should be of interest. A fish is 2.5m2.5 \mathrm{~m}2.5m in front of the diving mask. Secondary Treatment: Wastewater Solids Processing: Past Exam Results. how much surface area of a rotating biological contactor is immerses in the wastewater? Note: The Grade 7 Upgrade Application must be mailed to the Commonwealth of Mass, as shown on the form. excessive slime growths on a trickling filter may cause a condition on the the filter called, Trickling Filters: What does the wastewater industry call sludge that is only partially digested? .s5ap8yh1b4ZfwxvHizW3f{color:var(--newCommunityTheme-metaText);padding-top:5px}.s5ap8yh1b4ZfwxvHizW3f._19JhaP1slDQqu2XgT3vVS0{color:#ea0027} Solids removal from secondary effluent: 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. The passing grade is 70%. Flashcards. What is the critical factor in any method to control the aeration tank? a. total solids when one liquid is dissolved in another liquid it is called. Our proven study tools will prepare you to take the Water Treatment, Water Distribution and Wastewater Operator exams with confidence. Safety: Sludge Digestion & Solids Handling: b. 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. A problem with odors from trickling filters may be solved by: Wastewater Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. Edwardsville, Illinois 62026-1075 (618) 650-2030 . Microbiology. VIII. WEF/ABC/C 2 EP Collection Systems Operators' Guide to Preparing for the Certification Examination. b. mineral oils 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: 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. a. O2 (+3) f. white, Odor Control: 2 Study only Chapter 15 (Maintenance) and Chapter 16 (Laboratory Procedures and Chemistry) of Book #. d. settleable solids, Activated Sludge: Sludge Digestion & Solids Handling: Most algae are in the____kingdom, Activated Sludge: ._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)} -temperature is 19 degrees C. -specific oxygen uptake rate (SOUR) is 1.2mg/L O2/g/hr. . The program suggests purchasing their books from Sacramento. This course includes the following lessons: System Design and Layout, Distribution Piping, Water Storage, Fire Hydrants and Valves, Water Meters, Pumps and Motors, Cross-Connection Control, Disinfection, Corrosion Control, Water Quality, Water Main Installation and Backfilling, Safety, Regulations, Hydraulics This class addresses all the test topics and provides the operators with all the study material necessary to prepare for the exam. What should the initial depth of sludge from a digester be when it is placed in a sludge drying bed? 0000001180 00000 n Answers and references are included for questions. What is the proper emergency chlorine kit for a 1-ton chlorine cylinder? This stage takes care of the dissolved organic matter that escapes the primary stage. Activated Sludge: c. cyanides 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. Sludge Digestion & Solids Handling: If you want more practice problems, click here . Rotating biological contactors are adversely affected by temperatures below_____degree F. Rotating Biological Contactors: It makes it a lot more challenging when, say, your system is just lagoons and they are asking questions about advanced processes. ._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)} Disinfection: d. positive displacement. d. raw sewage. b. extended aeration activate sludge d. belt presses, Wastewater Solids Processing: Following the activated sludge what process modification is very sensitive to bulking? the books are a tad overkill for the ABC tests. -pH is 7.2. Currently the Collection Systems, the Class 4, Class 3, Class 2 and the Class 1 exam have 100 questions each. One solids treatment thickening process would be: The color of the bio-film on a rotating biological contactor undergoing nitrification would appear? When an electrolyte is dissolved in water to form an ion, the ion is said to be________, Basic Chemistry: What class of fire involves sodium and magnesium? Saprophytic microorganisms are also called: Sludge Digestion & Solids Handling: Classes will Start September 7, 2021 and meet twice per week (Tues & Thurs) for six weeks, ending on October 14, 2021. The last stage is the treatment of RMW. 4 These practice tests are a great study tool to add to your Water Distribution Operator Exam studying process. The solids treatment method usually dewaters solids by mixing them with a bulking agent and then waiting for biological stabilization to occur? The industrial Class K (facility-specific) exam has a total of 15 questions, 5 multiple choice short answer/essay. .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} 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. b. phosphoric acid I did my collection lvl4 and treatment lvl4, failed both, 8 year in the industry, tough exam. Sludge Digestion & Solids Handling: b. pH Krysta_Wordock. Pass your test the first time! b. using masking agents Which organism would most probably be associated with high suspended solids and biochemical oxygen demand (BOD). Residual Solids Management: a. increase air in aeration system 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? what would happen if too much sludge was added to an anaerobic digester? a. no organics What is the odor detection limit of chlorine gas? b. decrease circulation Equilibrium system and stress factors Please sign in to share these flashcards. Please take this quiz and check how well do you know about CA water treatment plant operator! b. bleach Motor insulation material comes in four classes and the are based on_______, Maintenance: They do list the books they pull info from. b. an anaerobic digester c. gasoline products How often should the mainshaft bearings be greased in a rotating biological contactor unit? Basic Chemistry: 2019 Association of Boards of Certification. 0000002075 00000 n a. step aeration American Water College. d. have a density significantly greater than water, contain 20-25% nonvolatile inorganic matter. Residual Solids Management: Wastewater Solids Processing: d. mixing, Sludge Digestion & Solids Handling: The City of Prattville is offering a new wastewater certification exam preparation course. d)Test start standby pimps, motors and generators. Sorry, your blog cannot share posts by email. 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 Sludge Digestion & Solids Handling: a. contain 20-25% nonvolatile inorganic matter c. vacuum filters feathr("sprinkle", "page_view"); Math guides, tutorials, tips, and practice quizzes. a. hair that is they must test what they are supposed to test. ._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)} Operators should use special precautions when placing anaerobically digested sludge on a drying bed because sludge contains what gas? Virtual Water workshops meet from 1:00 p.m. to 4:00 p.m. Secondary Treatment: Colorado uses the 2019 edition of standard, sequential examinations developed by the Association of Boards of Certification (ABC) for all classes of certificates, except Classes "S" and "T" which are custom exams. The color of the bio-film on a rotating biological contactor that has high sulfur concentrations would appear, Secondary Treatment: a. BOD . . Approx. Illinois EPA certifies the technical competency of . Safety: What substance can cause obstructions in the sewer system and may cause anaerobic decomposition where the substances accumulate? Rotating Biological Contactors: To help you study for your wastewater treatment operator certification exam, here are four practice problems. Effluent Disposal: b. vacuum filters Rotating Biological Contactors: We weren't able to detect the audio language on your flashcards. 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: You have to finish following quiz, to start this quiz: When organic wastes are discharged to receiving water, oxygen is depleted by. .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} A pond that contains oxygen in its upper layers and lacks oxygen in the bottom layer is classified as, Waste Treatment Ponds: worked for me on the class IV. Class K Study Guide Industrial Wastewater Operator Certification . Questions: 26 | Attempts: 3527 | Last updated: Mar 22, 2022. -pH is 7.2. support for the floating cover when it is at its lowest point. c. power requirements are low Sludge Digestion & Solids Handling: Deep. Sedimentation and Flotation: WasteWater Operator Certification, Grade 2, Wastewater Treatment Facilities: ._1aTW4bdYQHgSZJe7BF2-XV{display:-ms-grid;display:grid;-ms-grid-columns:auto auto 42px;grid-template-columns:auto auto 42px;column-gap:12px}._3b9utyKN3e_kzVZ5ngPqAu,._21RLQh5PvUhC6vOKoFeHUP{font-size:16px;font-weight:500;line-height:20px}._21RLQh5PvUhC6vOKoFeHUP:before{content:"";margin-right:4px;color:#46d160}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{display:inline-block;word-break:break-word}._22W-auD0n8kTKDVe0vWuyK{font-weight:500}._22W-auD0n8kTKDVe0vWuyK,._244EzVTQLL3kMNnB03VmxK{font-size:12px;line-height:16px}._244EzVTQLL3kMNnB03VmxK{font-weight:400;color:var(--newCommunityTheme-metaText)}._2xkErp6B3LSS13jtzdNJzO{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex;margin-top:13px;margin-bottom:2px}._2xkErp6B3LSS13jtzdNJzO ._22W-auD0n8kTKDVe0vWuyK{font-size:12px;font-weight:400;line-height:16px;margin-right:4px;margin-left:4px;color:var(--newCommunityTheme-actionIcon)}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y{border-radius:4px;box-sizing:border-box;height:21px;width:21px}._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(2),._2xkErp6B3LSS13jtzdNJzO .je4sRPuSI6UPjZt_xGz8y:nth-child(3){margin-left:-9px} c. has less flocculant than primary sludges Campus Box 1075 - Southern Illinois Univ. c. a biological process What about the removal of suspended solids? c. complex mix aeration Sludge Digestion & Solids Handling: Introduction Which of the following groups of microorganisms are found in a good settling mixed liquor? DO b)Determine that all the plant equipment is operational. The purpose of adding sodium thiosulfate to a microbiological sample bottle is to. All occupied trenches 4 or more feet deep must provide exits at. Sludge Digestion & Solids Handling: b. A wastewater [plant has a train of three rotating biological contactor (RBC) units. The Examination Request for Wastewater Operator Certification must be submitted for a Letter of Admission to be issued. 2017 Wastewater Treatment Operator Formula/Conversion Table. Safety: Residual Solids Management: Class 4E On-Site Wastewater Certification Exam . Upgrade to Combined Grade 7 - Massachusetts Wastewater Treatment Plant Operator. 0000000607 00000 n What solids treatment method removes 100% of the pathogens, water, and organics (UV is not the answer), Residual Solids Management: How often should the oil be changed in the speed reducer of a rotating biological contactor? Certification testing is offered as a computer-based test. If the sludge drying beds had a decaying odor, what would be the most likely solution? /Filter /FlateDecode Activated Sludge Module 2 . that is they must test what they are supposed to test. Activated Sludge: Wastewater Class 2 multiple choice. A solids treatment stabilization process method would be: Study key C amp D IN gov. Which one of the following parameters can be preserved for later lab analysis? a)Clean settling basins and dispose of sludge. a. incinerated material c. temperature c. secondary sludge d. about the same volume as the grit being removed. Which one of the following methods would not be used to feed DRY chemicals? r.invoke.apply(r,arguments):r.queue.push(arguments)}, An atmosphere is defined as oxygen deficient if it contains less than what % oxygen by volume? }(window,document,"script","https://cdn.feathr.co/js/boomerang.min.js","feathr"); %PDF-1.2 What would be the cause of a shorted-winding in a motor? Usually, what is the % accuracy of a graduated cylinder and burette? %PDF-1.4 % d. pure oxygen, Activated Sludge: 0000002114 00000 n What type of feeder would always feed a gas? IX. 98) Every day the operator of a small wastewater treatment plant should. -all blowers are running. c. sludge digester Waste Treatment Ponds: Influent BOD testing will allow monitoring of F/M ratio and plant organic loading. ._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} Maintenance: Of the following, which is the least important nutrient in wastewater treatment for microorganisms to reproduce? a) 346.2 b) 2229 Off GPM 7207 c) 3.23 33.4 in. Humus sludge is biomass from, Trickling Filters: ._3-SW6hQX6gXK9G4FM74obr{display:inline-block;vertical-align:text-bottom;width:16px;height:16px;font-size:16px;line-height:16px} Compute the depreciation schedule using: (a) Straight-line depreciation (b) Sum-of-years'-digits depreciation (c) Double declining balance depreciation (assume any remaining depreciation is claimed in the last year). Which one of the following types of substance is not soluble in water and has the potential of creating explosive conditions? Wastewater Treatment Operator Certification Exam - 4 Practice Problems Water and Wastewater Courses 6.18K subscribers Subscribe 86K views 5 years ago For practice exams:. c. DO c. trisodium phosphate Wastewater Tougher Questions wastewater grade 1 Wastewater Certification Grade 2 Flashcards Wastewater Grade 4 Questions Wastewater Grade 4 Questions by coe1069 , Mar. a. primary clarifier Class 2 wastewater operator certification examination. Pool Chemistry d. activated sludge. b. they can handle a large range of flows My score on the exam was a B+ for the level one, my score for other exams have been much better. Activated Sludge: What condition will occur if sludge is not pumped out of primary clarifiers at regular intervals? Sludge Digestion & Solids Handling: 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.

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