TEW Study guides, Class notes & Summaries

Texas Wastewater A questions with correct answers.

How much of the population is on individual sewage disposal systems? - ANSWER-1/3 of population What is the time limit for wastewater traveling to the waste water facility? Why? - ANSWER-2 days Fresh wastewater is easily treated and highly putrid Septic wastewater requires more treatment, cost, and energy How fast does wastewater move through sewer pipes? - ANSWER-2 feet per second Any slower and water tends to decay faster and become septic How far are manholes placed apart? W...

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...

What are the treatment processes in PRELIMINARY Wastewater Treatment? correct answer: Screening Comminution Grit Removal Pre-Aeration Flow Metering / Sampling What are the treatment processes in PRIMARY Wastewater Treatment? correct answer: Sedimentation / Flotation What are the treatment processes in SECONDARY Wastewater Treatment? correct answer: Biological Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) Sedimentation What are the trea...

WasteWater Operator class C exam practice review questions with answers When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel - ANS 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 - ANS D. Free swimmers and stalk ciliates What is Phenolphylein use...

WasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? CORRECT ANSWER storm events WasteWater Sources & Characteristics: Combined wastewater is defined as CORRECT ANSWER sanitary wastewater and stormwater runoff WasteWater Sources & Characteristics: In general, the solids content in wastewater is about CORRECT ANSWER 0.1% WasteWater Sources & Characteristics: In general, what is t...

Test Bank for Prelude to Programming 6th edition by Stewart Venit, Elizabeth Drake

Instructor Solution Manual For Understanding Human Resources Management A Canadian Perspective, 2nd Edition Melanie PeacockEileen B. StewartMonica Belcourt Chapter(1-11)

WasteWater Class C Exam – Questions/Answers

Alabama Wastewater Collection Grade 1 C Exam Questions With Verified Solutions A flow of 60 gph is equal to? a. 1 mgd b. 1mg/L c. 10 gpm d. 1 gpm - ANS d. 1 gpm (60 gph / 60 min/hr ) The slope of a sewer is measured by a. The difference from the crown to the invert b. The difference in invert elevations over the length of the pipe c. Using the diameter of the pipe d. Only entering the manhole - ANS b. The difference in invert elevation over the length of t...