Bod c - Study guides, Class notes & Summaries

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 ...

The name of the State Agency responsible for enforcing pollution control laws in Texas is - a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission - D The term pathogenic means - a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacteria e. Capable of Causing Disease - E The minimum separation between sewer lines and potable water...

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? - ...

Seeding of BOD samples is necessary when samples - (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? - 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 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 ...

Wastewater Treatment Operator Certification Test Questions and Answers Latest 2024/2025 | 100% Correct. The name of the State Agency responsible for enforcing pollution control laws in Texas is – a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission 2. The term pathogenic means – a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacter...

Basic Wastewater Operator Practice Exam Questions And Answers What is the predominant organism in a healthy activated sludge treatment plant? A. Stalked ciliates B. rotifers C. nematodes D. amoebas - ANS A. Stalked Ciliates A composite sample must be? A. sporadically collected in the treatment plant B. taken at one time C. analyzed immediately D. representative and sub-samples time spaced over 15 minutes apart - ANS D. representative and sub-samples time spaced over 15...

Wastewater Exam Questions With 100% Correct Answers water becomes denser as it becomes - answercolder chemical symbol for lead - answerPb Elements that are isotopes contain different numbers of ______________ - answerneutrons table salt is - answersodium chloride Water has a much higher boiling point than expected because of - answerhydrogen bonding Chemical bonds occur when atoms share___________ - answerelectrons The number of electrons in an atom's outermost electron layer determine ...

Waste Water Operator class C exam 2024/2025 Review Questions and Answers correct verified When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel - CORRECT 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 - CORRECT ANSWER-D. Free swimmers and stalk ciliates...

Texas Class C Wastewater Treatment License Questions And Answers Latest 2024/2025 Graded A+. What stage of treatment is grit removal usually accomplished in? - ANSWERpreliminary treatment Rotating Biological Contactor - ANSWER-a type of biological secondary treatment process How are protozoa (cause of amoebic dysentery) destroyed? - ANSWER-disinfection Other than stream discharge, what are other ways to dispose of effluent wastewater? - ANSWER-aquifer recharge, evaporation in a pond, and ap...

The name of the State Agency responsible for enforcing pollution control laws in Texas is - a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission correct answers D The term pathogenic means - a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacteria e. Capable of Causing Disease correct answers E The minimum separation between s...