Essential wastewater - Study guides, Class notes & Summaries

Wastewater treatment ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ As an operator, you are responsible to your employer for maintaining an economical and efficient operating facility. - ANSWER- TRUE An operator has an obligation to the great numbers of people who rely on down stream water supplies and are totally dependent on the operator's competence and trust worthiness for their welfare - ANSWER- TRUE Today, the natural purificat...

Q: Why should you plan a good maintenance program for your treatment plant? - corect answer-A: A good maintenance program is essential for a wastewater treatment plant to operate continuously at peak design efficiency. Q: What general items would you include in your maintenance program? - corect answer-A: The most important item is maintenance of the mechanical equipment-pumps, valves, scrapers, and other moving equipment. Other items include plant grounds, buildings, and structures. Q...

An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? - Answer 11.1 hours An industry has five sewer connections with the following discharge rates: 1) 300 gpd, 2) 75 gpd, 3) 725 gpd, 4) 1,200 gpd, 5) 200 gpd A flow-weighted composite sample of 5 liters is desired. How many millili...

Wastewater Treatment Operator Certification Exam With Complete Questions And Answers 2024 1 mg/l is the same as 1 part per billion (ppb) True or False - correct answer.False (v.1 pg 468) A SCADA system is capable of monitoring and controlling equipment from a remote location True or False - correct answer.True (v.2 pg 627) A Discharge Monitoring Report is typically submitted to the regulatory agency on a daily basis True or False - correct answer.False A mecha...

Floatable solids are easy to measure. True or False? False A well operated digester normally receives sludge at about __________% volatile solid and reduces it to about ________________% volatile solids. 70-75%, 25-30% According to OSHA, which of the following oxygen in air concentration is the lowest safe concentration for humans to breathe in order to avoid the hazard of oxygen deficiency? 19.5% oxygen The population equivalent factor for BOD is 0.17 lb/day/BOD/person W...

An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? - 11.1 hours An industry has five sewer connections with the following discharge rates: 1) 300 gpd, 2) 75 gpd, 3) 725 gpd, 4) 1,200 gpd, 5) 200 gpd A flow-weighted composite sample of 5 liters is desired. How many milliliters...

1 mg/l is the same as 1 part per billion - CORRECT ANSWER-F A scada system is capable of monitoring and controlling equipment from where? - CORRECT ANSWER-remote location A Discharge Monitoring Report is typically submitted to the regulatory agency on daily basis - CORRECT ANSWER-False = Monthly A mechanical seal is used to prevent leaks between where? - CORRECT ANSWERbetween the pump casing and shaft Alkalinity is the capacity of a liquid to neutralize base - CORRECT ANSWER-False = Al...

Water Purification Exam Questions and Answers 100% Solved Water - The most important potential common source of infectious disease (i.e., Cholera, Shigellosis, Typhoid fever, etc); Can also be a source for chemically induced intoxications Public health - Ensuring water purity is essential for _______ Microorganisms - Treatment and purification schemes use _____ to identify, remove and degrade pollutants Wastewater - Domestic sewage or liquid industrial waste Wastewater treatment - Relie...

Grade 2 Wastewater Treatment Operator Practice Exam (Complete with questions and correct answers) 2024/2025 1 mg/l is the same as 1 part per billion - CORRECT ANSWER-F A scada system is capable of monitoring and controlling equipment from where? - CORRECT ANSWER-remote location A Discharge Monitoring Report is typically submitted to the regulatory agency on daily basis - CORRECT ANSWER-False = Monthly A mechanical seal is used to prevent leaks between where? - CORRECT ANSWERbetween t...

Important factors that determine the type of treatment scheme that will be used include ________. Select one: area available ent quality required ting costs of the above d. all of the above Causes of sludge bulking include ________. Select one: DO and presence of sulfides supply too low ic loading rate too high ent imbalance the above the above A rotating biological contactor is ________. Select one: ced treatment rarely found in Texas b.a centrifuge for micr...