Wastewater collection - Study guides, Class notes & Summaries

CWEA Collections System Maintenance Grade 3 | Questions and Answers | Correct Latest 2023 Graded A+. When pouring a concrete slab, which of the following tools is used to finish the concrete? a. Grasshopper. b. Tamper. c. Trowel. d. Vibrator. Correct Answer: c. Trowel. What tool is used to snare a broken section of sewer rod? a. Square stock corkscrew. b. Auger. c. Pickup tool. d. Pull out tool. Correct Answer: c. Pickup tool. Why is the replacement of wastewater collection systems in ...

Liftstations at a treatment plant or those which discharge directly to a treatment plant with an average flow greater than 0.1 MGD shall have three or more pumps or have automatically controlled variable capacity pumps, these pumps should be adjusted to actual flow conditions and controlled to operate so as to: - CORRECT ANSWERMinimize surges in the treatment in the treatment units. In the contact stabilization system of activated sludge treatment, the detention time in the contact zon...

WASTEWATER FORCE MAIN PRESSURE RATING IS. A. 75 B. 100 C. 125 D. 150 E. 200 - Answer D. 150 THE MOST CRITICAL FACTORS OF THE FINAL GRADE OF A GRAVITY WASTEWATER PIPE SHOULD BE? A. ALIGNMENT B. CHOICE OF PIPE MATERIALS C. CHOICE OF LEVELING EQUIPMENT D. CHOICE OF EXCAVATING EQUIPMENT E. CHOICE OF PIPE BEDDING - Answer E. CHOICE OF PIPE BEDDING SETTING GOALS WORKS BEST WHEN? A. ACCOMPANIED BY AN ACTION PLAN B. DEVELOPED BY MANAGER C. DEVELOPED BY EMPLOYEE - Answer ...

What is another term for wastewater collections system? Correct Answer Sewerage System What is the term used to describe the seepage of ground water into a sewer system including service connections? Correct Answer Infiltration What is SSO stand for? Correct Answer Sanitary sewer overflow What is the minimum scouring velocity in a sewer system? Correct Answer 2 feet per second no more than 10 feet per second Smoke testing of wastewater collections system is used to determine what? Co...

OPERATION AND MAINTENANCE OF WASTEWATER COLLECTION SYSTEMS VOLUME 1| 88 QUESTIONS AND ANSWERS 2023

When should atmospheric monitoring in a confined space be performed? Correct Answer Continuously from pre-entry to exit Below what maximum percentage is an atmosphere considered oxygen deficient? Correct Answer 19.5% Which type of pipe is recommended when crossing another underground utility? Correct Answer Ductile Iron pipe Which chemical may be used to remove sulfides by precipitation? Correct Answer Ferric Chloride (FeCl3) What is a Hydro-brake? Correct Answer A vortex flow regula...

Operation and Maintenance of Wastewater Collection Systems Volume 1 Already Passed The Operator. What is another term for wastewater collection system? 1. Sewerage system. 2. Distribution system. 3. Pipes, pumps, and plants. 4. Sewers. What is meant by operation and maintenance of wastewater collection system? 1. Keeping the facilities in good operating condition. 2. Bypassing raw wastewater from the collection system. 3. Keeping the trucks operating. 4. Working with other utility agencies. Wh...

WASTEWATER COLLECTIONS (Class II) 40 Questions and Answers

The following are not "underground storage tanks" correct answer: 1. A farm Tank 2. A heating oil tank 3. A hydraulic lift tank 4. A liquefied petroleum gas tank 5. A septic tank 6. A sump, pit, pond or lagoon 7. A wastewater treatment tanks except if it is part of a UST system 8. A pipeline located in a refinery except if it is connected to an underground storage tank 9. A storm water or waste water collection system 10. Tanks containing radioactive materials that are cover...