Cwea collection Study guides, Class notes & Summaries

Why are gasoline and volatile solvents objectionable when present in a sewer? - They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equ ipment panels, controls, wiring or circuits unless - You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? - Advance Warning Area, Transition Area, Activity Area (buffer space and work space), Termination Area. Could be 4 or 5, justify your answer on t...

CWEA Collection Systems Maintenance Grades 2 (2024 / 2025 Update) Practice Questions and Verified Answers | 100% Correct | Grade A Q: What affects the flow capacity of a sewer line? Answer: Pipe size, pipe, material, grade Q: When a grade conflict exists between a Water main and a sewer main, which of the following is the best solution? Answer: Have the Water main adjusted and hold the grade on the sewer main Q: Why is the replacement of wastewater collection systems in some downtown streets dif...

CWEA Collection Systems Maintenance Grades 2 (2024 / 2025 Update) Exam | Questions and Verified Answers | 100% Correct | Grade A Q: What four conditions are necessary to create an explosion? Answer: Combustible gas, adequate oxygen, sufficient heat, and proper mixing of gas and oxygen. Q: What does "transition area" mean in traffic control? Answer: Moves traffic out of its normal path Q: The term

CWEA Collection Systems Maintenance Grades 1 (2024 / 2025 Update) Practice Questions and Verified Answers | 100% Correct | Grade A Q: The lack of an unpleasant odor in a manhole, loft station, or other structures does not always mean that dangerous gases aren't present because: Answer: Some dangerous gasses have no odor. Q: What should be considered when providing trench shoring? Answer: Depth of trench ( anything over 5' needs shoring) Q: Excavations & adjacent areas must be inspected on a da...

QUESTIONS AND ANSWERS

CWEA Collections Grade 3 Exam | 2024 / 2025 Update Questions and Verified Answers | 100% Correct | Grade A Q: Which chemical may be used for odor control in a sewer system? a. Calcium chloride b. Hydrogen peroxide c. Oxidized aluminum d. Sodium chloride Answer: b. Hydrogen peroxide Q: What information must be on a warning tag attached to a switch that has been locked out? a. Directions for removing tag. b. Name of nearest physician to call in case of emergency. c. Signature of person who locked ...

CWEA Collections System Maintenance Grade 3 Questions and Answers (2023/2024) (Verified Answers)

CWEA Collections System Maintenance Grade 3 | 82 Questions with 100% Correct Answers

CWEA Collection Systems Maintenance Grades 1 & 2 Bundled Together | 2024 / 2025 Update Questions and Verified Answers | 100% Correct | Grade A Q: what elements should be considered to improve worker safety in High speed Temporary Traffic control Zones? Answer: Rerouting traffic around the work site, positioning of law enforcement officers in the temporary traffic control zone, and work zone training Q: What key features would you need to address when developing an S.O.P. for a Lift Station failu...