Water Treatment
Bridgewater State University
Hier vind je de beste samenvattingen om te slagen voor Water Treatment. Er zijn o.a. samenvattingen, aantekeningen en oefenvragen beschikbaar.
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WASTEWATER PRACTICE EXAM 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
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---3juni 20232022/2023A+
- Odors occur when treatment becomes - CORRECT ANSWER Anaerobic 
What should an operator do before entering a manhole - CORRECT ANSWER Test for all hazardous gases and oxygen levels and ventilate the manhole before entering 
What treatment devices is commonly used to separate and remove large solids from raw wastewater - CORRECT ANSWER a mechanically raked bar screen 
What diseases are caused by pathogenic organisms that may be present in raw wastewater? - CORRECT ANSWER He...
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$8.69 Meer Info
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WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #1 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
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---21juni 20232022/2023A+
- What is the methane content in a properly operation anaerobic digester? 
 
A) 30 to 35% by volume 
B) 1 to 2% by volume 
C) 65 to 70% by volume 
D) 15 to 20% by volume - CORRECT ANSWER C) 65 to 70% by volume (v.2 pg 158) 
What will the addition of chlorine gas do to the pH of wastewater? 
 
A) Moderately increase pH 
B) pH will not be affected 
C) Significantly increase the pH 
D) Decrease the pH - CORRECT ANSWER D) Decrease the pH (v.1 pg 349-350) 
What is the purpose of a Parshall f...
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$12.59 Meer Info
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WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #2 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
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---21juni 20232022/2023A+
- What is the typical BOD removal efficiency in a primary clarifier? 
 
A) 10 to 15% 
B) 40 to 60% 
C) 20 to 50% 
D) 95 to 99% - CORRECT ANS C) 20 to 50% (v.1 pg 129) 
What does the "F" in F/M ratio represent? 
 
A) The microorganism population in the aeration tank 
B) The amount of filamentous bacteria in the activated sludge process 
C) The MLVSS in the aeration tank 
D) The food for the microorganisms flowing into the aeration tank, in lbs/day - CORRECT ANS D) The food for the micro...
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$13.99 Meer Info
ACELEARNERS
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WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA) 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
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---6juni 20232022/2023A+
- A continuously flowing watercourse - CORRECT ANS Perennial Stream 
Algae causes PH to ....... at night - CORRECT ANS Decrease 
What contributes to creation of algae blooms - CORRECT ANS Increased nutrients 
Iron is found mostly in what sources of water - CORRECT ANS Groundwater 
Also called the rule of reasonable sharing - CORRECT ANS Riparian Doctrine 
Water high in salinity and warm is - CORRECT ANS Low in dissolved oxygen 
Reservoir turnover - CORRECT AN...
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$8.79 Meer Info
ACELEARNERS
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Tentamen (uitwerkingen)
PRACTICE CERTIFICATION EXAM FOR WATER TREATMENT 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
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---9juni 20232022/2023A+
- Investigate immediately. - CORRECT ANS If a consumer complains about the drinking water characteristics, the operator should record the complaint and 
Operating ratio - CORRECT ANS What term is used when a water utility divides its total operating expenses into the total revenue? 
Daily - CORRECT ANS How often should operating data, such as flow rate, amount of water treated, dosage of chemical, and reservoir levels be recorded? 
Document that safe drinking water has been delivere...
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$10.49 Meer Info
ACELEARNERS