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Exam (elaborations)

Wastewater Operator Certification Study Guide Grade 1 Questions With Correct Answers

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WASTEWATER OPERATOR CERTIFICATION STUDY GUIDE GRADE 1 QUESTIONS WITH CORRECT ANSWERS

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Basic Chemistry:


Which lab glassware is used for measuring volumes


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graduated cylinders




Safety:


Which one of the following infectious diseases is NOT transmitted by wastewater
a. tetanus
b. tuberculosis
c. AIDS
d. polio


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, the acquired immune defiency syndrome AIDS virus




Basic Chemistry:


Which lab tests has a zero holding time


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chlorine residual




Basic WasteWater Treatment:


Septic conditions are caused by


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anaerobic bacteria




Sampling, testing & reporting


The maximum holding time for a preserved total suspended solids sample is:


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7 days

,Waste Treatment Ponds:


The most common type of pond is


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facultative pond




Basic Chemistry:


Which one of the following is not a hydrate:


a. alum
b. blue nitrate
c. sodium nitrate
d. ferrous sulfate


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sodium nitrate




Safety:


The primary purpose of check vales is to prevent


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water from flowing in 2 directions

, Disinfection:


Free available chlorine consists of


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dissolved chlorine gas, hypochlorous acid, and hypochlorite ion




Maintenance:


what type of fuses would most likely be used to protect a meter?


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dual-element fuses




Sampling, testing & reporting


The maximum holding time for preserved BOD5 samples is


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2 days




Basic Chemistry:


The electrical potential between two points is measured in

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