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Reliability can only . When inserting glass tubing into a rubber hose or stopper, never use____for lubrication, Basic Chemistry: Wastewater Practice Test - DEMO This 5 question practice test is a demo of the full, 100 question, practice test available to members. Massachusetts Wastewater Operator Certification Exams Three Aeration Tanks, Each @ 100 ft. Long, 25 ft. What is the ideal temperature range for methane-forming bacteria in anaerobic digesters? What is "the" major factor in predicting the performance of wastewater clarifiers? Sludge Digestion & Solids Handling: The exam questions were developed by experts in the wastewater field. Wastewater Certification Practice Exam | Approved Environment Inc. 2014. a. improve housekeeping ._3K2ydhts9_ES4s9UpcXqBi{display:block;padding:0 16px;width:100%} All rights reserved. To go to the Class 2 & 3 Study Guide Click on above tab. Bacteria are in the ______kingdom, Activated Sludge: 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. c. vacuum filters a. If an activated sludge plant is hit with a high organic load, what will most like occur in the aeration tank? The process that uses heat to selectively destroy undesirable organisms is called: Disinfection: What should be the air gap separation between a potable water pipe and the rim of a wastewater tank? Activated Sludge: worked for me on the class IV. Please select the correct language below. VI. Campus Box 1075 - Southern Illinois Univ. 8 0 obj d. flooding the filter, Trickling Filters: d. dissolved oxygen, Wastewater Solids Processing: 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? The best operation performance for an anaerobic digester is when it is feed PDF Wastewater Collections Grade 2 Practice Test California c. trisodium phosphate Sludge Digestion & Solids Handling: What document provides a profile of hazardous substances and/or mixtures? How often should the oil in the chain casing be changed? Sludge Digestion & Solids Handling: Water and Wastewater Microbiology" Wastewater sources & characteristics: