Wastewater c Study guides, Class notes & Summaries

TEXAS WASTEWATER CLASS A EXAM 2024| ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS| GRADED A+

When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel - Answer- C. PVC A good settling sludge would consist of what type of protozoa? A. Rotifers and nematodes B. Amoebas and Flagellates C. Stalked ciliates and mastagoria D. Free swimmers and stalk ciliates - Answer- D. Free swimmers and stalk ciliates What is Phenolphylein used for in titration A. Oxidizer B. Indicator C. Acid reducer to lower pH...

Seeding of BOD samples is necessary when samples - Correct Answer (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Correct Answer Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.2...

Wastewater Class 4 Exam Virginia-with 100% verified solutions-

Wastewater Treatment Operator Certification Test #1 ANSWERS & ANSWERS 2023 ( A+ GRADED 100% VERIFIED)

Why should the pumps in a lift station not start and stop frequently? Pump in a lift station should not start and stop frequently because frequent motor starts cause excessive wear on equipment and may cause surges in the Wastewater flow. Also, frequent starting will increase power cost. What problems develop in a wet well that is too large? If a wet well is too large, solids will tend to accumulate on the bottom because the wet well will be acting as a settling tank, accumulated solids...

Operation and Maintenance of Wastewater Collection System Volume II