CA Wastewater Grade 3 sample questions with Correct Answers Already Passed
5 views 0 purchase
Course
Wastewater
Institution
Wastewater
In order for a pond to be functioning correctly________ must be taking
place.
A. photosynthesis
B. rapid temperature changes
C. rapid pH changes
D. rapid DO changes
E. alkalinity changes - A
CA Wastewater Grade 3 sample questions with Correct Answers Already Passed In order for a pond to be functio ning correctly________ must be taking place. A. photosynthesis B. rapid temperature changes C. rapid pH changes D. rapid DO changes E. alkalinity changes - ✔A Potential problems of ammonia in wastewater. A. ammonia toxicity to fish. B. DO depletion in t he receiving waters. C. Increase algae growth. D. Blue baby. E. All the above - ✔E One way to control filamentous organisms is to A. apply a small dose of chlorine to the RAS. B. Filamentous organisms do not need to be controlled, they are not path ogenic. C. let nature take its course, the filament will eventually die off. D. Increase inf flow to the activated sludge basin and flush the organisms out. E. Increase the MCRT - ✔A Wastewater is running full is a 6 inch gravity pipe. What is the chan ge in velocity when the pipe size is increased to 12 inches, if the flow remains constant? A. 1/4 as much B. Twice as much C. four times as much D. half as much E. Six times as much - ✔A The percent of solid material in wastewater is normally less than A. 1.00%. B. 0.10%. C. 10.0%. D. .050%. E. 0.01% - ✔B Advantage(s) of the COD over the BOD test is A. it only takes a few hours to complete. B. indicates more accurately that the waste can be treated in the activated sludge process. C. takes place at a much lower temperature than the BOD test. D. No hazardous waste is generated during the test. E. All the above. - ✔A High rate and low rate normally refer to digester A. flow rate. B. digestion time. C. volatile reduction. D. temperature change. E. None of the above. - ✔A Which statement is false regarding polyelectrolytes? A. An over dose or an under dose will produce poor results. B. Polyelectrolytes require a specific pH range for use. C. Polyelectrolytes are inexpensive to use. D. Polye lectrolytes may be positive, negative, or neutral of charge. E. Polyelectrolytes are difficult to clean up when spilled. - ✔C Natural methods of nitrogen removal include A. breakpoint clarification. B. overland flow. C. Bardenpho process. D. Ion e xchange method E. b and c. - ✔E When making a change to the activated sludge process how long should you give the process to stabilize? A. 1 week B. 12 hours C. 2 shifts D. 2 days E. 30 days - ✔A
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller KenAli. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
