Wastewater plant - Study guides, Class notes & Summaries

Wastewater Collector Class D License Exam Questions and Answers Already Passed Latest Updated 2024/2025 | Graded A+. I & I causes hydraulic overload on wastewater lines, lift stations and the wastewater treatment plant. a. true b. false a. true I & I, (Inflow & Infiltration) causes hydraulic overload to wastewater lines, lift stations, and treatment plants. 2. When the treatment plant is overloaded, the bypassed, spilled or under–treated wastewater pollutes rivers and streams. a. tru...

TEXAS WASTEWATER CLASS B EXAM 2024 WITH 100% CORRECT ANSWERS The name of the State Agency responsible for enforcing pollution control laws in Texas - correct answer Texas Commission of Environmental Quality The term pathogenic means - correct answer Capable of causing disease The minimum separation between sewer lines and potable water lines is - correct answer 9 feet A licensed wastewater operator is a professional - correct answer consistently does best job possible, practices pe...

What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? (Ans- storm events Wastewater Sources & Characteristics: Combined wastewater is defined as (Ans- sanitary wastewater and stormwater runoff Wastewater Sources & Characteristics: In general, the solids content in wastewater is about (Ans- 0.1% Wastewater Sources & Characteristics: In general, what is the % of suspended solids in the total amount of solids (Ans- 3...

Wastewater Collector Class D License Exam Questions and Answers Already Passed Latest Updated 2024/2025 | Graded A+. I & I causes hydraulic overload on wastewater lines, lift stations and the wastewater treatment plant. a. true b. false a. true I & I, (Inflow & Infiltration) causes hydraulic overload to wastewater lines, lift stations, and treatment plants. 2. When the treatment plant is overloaded, the bypassed, spilled or under–treated wastewater pollutes rivers and streams. a. tru...

Texas Wastewater Class A Exam Prep (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct Q: Before entering a confined space a worker should Answer: Use approved monitoring device and check for the presence of dangerous gasses, ventilate the space with a blower, wear a safety harness and attach a life line Q: A properly designed and operated primary sedimentation tank should remove _____ percent of incoming BOD Answer: 30-40% Q: Devices that may be...

In an electrical circuit, the grounding wire is indicated by which color? Correct Answer: Green According to the Ohms Law, which electrical unit measures pressure? Correct Answer: Volts According to the Ohms Law, which electrical unit measures resistance? Correct Answer: Ohms According to the Ohms Law, which electrical unit measures current? Correct Answer: Amps How do you convert cubic feet to gallons? Correct Answer: Multiply by 7.48 How do you convert gallons to pounds? Co...

Texas Wastewater Class B Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct | Grade A Q: Ways to reduce bad odors coming from a collection system Answer: routinely cleaning slow running or low flow lines, adding chlorine or hydrogen peroxide to the collection system Q: Types of pipe that are commonly used in wastewater collection system Answer: ductile iron, Poly Vinyl Chloride (PVC) Q: Before entering a confined space a worker should A...

As an operator, you are responsible to your employer for maintaining an economical and efficient operating facility. correct answers TRUE An operator has an obligation to the great numbers of people who rely on down stream water supplies and are totally dependent on the operator's competence and trust worthiness for their welfare correct answers TRUE Today, the natural purification processes in rivers treat all the waste loads and keep rivers clean. correct answers FALSE Operators are ...

Preliminary Treatment - the 1st stage of sewage treatment where large debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, where the flow of water is slowed enough to allow for sedimentation. What stage of treatment is grit removal usually accomplished in? - preliminary treatment Rotating Biological Contactor - a type of biological secondary treatment process How are protozoa (cause of amoebic dysentery) destroyed? - disinfection Other than stream d...

Describe proper design of force main wastewater lines - Answer-Minimum 2 fps velocity with the smallest pump operating alone. Minimum 4 inch diameter pipe 150 psi rating. What is Standard Dimension Ratio? - Answer-Ratio of outside pipe diameter (OD) to wall thickness (PVC) Describe proper design of gravity wastewater lines. - Answer-Designed to flow half full under normal conditions at a minimum of 2 fps maximum of 10 fps. A primary clarifier should remove how much BOD and TSS? - ...