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What is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% correct answerC) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous bacteria in the activated sludge process C) The MLVSS in the aeration tank D) The food for the microorganisms flowing into the aeration tank, in lbs/day correct answerD) The food for the microorganism...

An Imhoff cone is used to measure________solids. A. suspended B. colloidal C. volatile D. settleable correct answerD. settleable (Operation of Wastewater Treatment Plants, Volume 1 by Kenneth D. Kerri) A _____ flume is widely used for measuring wastewater flow. correct answerParshall (Operation of Wastewater Treatment Plants, Volume 1 by Kenneth D. Kerri) Velocity of flow in a grit channel must be reduced to a range of ____ to _____ fps in order for grit to properly settle. c...

*What does it mean to say that a child has "theory of mind"? correct answerWhen a child is said to have "theory of mind", this indicates that the child has developed the understanding that others' mental states may be different from their own mental states and processes. Theory of mind is thought to develop during the preoperational period between the ages of 3 & 4 years old. There are several tests used to assess its development, for example the false belief test, the deceptive box task, t...

Scope of practice correct answer1. Design Pilates exercise program's according to an individual's needs 2. Recognize conditions that would preclude a client from safely participating in a Pilates exercise program 3. Coach, provide general information, and direct clients to seek medical attention as necessary 4. Receive exercise guidelines and clearance from medical practitioners when appropriate, to ensure client safety 5. Document clien profree and cooperate with referring medical practi...

NHA Phlebotomy Study Guide - Pt 1 Questions with Correct Answers What are the two circulations of the Heart ? correct answer: Pulmonary and Systemic The pulmonary circulation carries _____? correct answer: Deoxygenated blood to the lungs and oxygenated blood from the lungs. What kind of valve is the tricuspid valve? correct answer: atrioventricle The pulmonic valve is situated between _____________? correct answer: Right Ventricle (RV) and pulmonary artery Endocardium is whi...