CIE 442- Exam 1 questions with answers

CIE 442- Exam 1 questions with
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answers


Types of Problems - CORRECT ANSWERS ✔✔Analysis and
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Design


What is/are analysis Methods - CORRECT ANSWERS
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✔✔Problems are well defined and have one answer; |\ |\ |\ |\ |\ |\ |\ |\



Gather data, select analysis method, calculate solution.
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What is/are the design methods - CORRECT ANSWERS
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✔✔Problems are poorly defined and can have multiple |\ |\ |\ |\ |\ |\ |\ |\



answers; gather data, develop alternatives, apply analysis
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method to each alternative, Select the best alternative.
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What are the different Levels of Design - CORRECT
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ANSWERS ✔✔Feasibility study, Conceptual/preliminary
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design, detailed/final design
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Feasibility Study - CORRECT ANSWERS ✔✔Information
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sources: Cheap, general |\ |\




Design Approach: Rules of thumb
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Cost estimates: not clear
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, Conceptual/preliminary design - CORRECT ANSWERS |\ |\ |\ |\ |\



✔✔Info sources: more expensive and more site-specific
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Design approach: Design parameters
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Cost estimates: more clear/precise
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Deliverable: size units |\ |\




Detailed/Final Design - CORRECT ANSWERS |\ |\ |\ |\ |\



✔✔Deliverable: plans and specs |\ |\ |\




Where are chemicals added in the "Treatment Train"? -
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CORRECT ANSWERS ✔✔During Coagulation and
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Disinfection


Typical Values for Coagulation - CORRECT ANSWERS
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✔✔G= 1000 s^-1|\ |\




Theta= 60s |\




Typical values for Flocculation - CORRECT ANSWERS
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✔✔G*theta= between 10^4 and 10^5 |\ |\ |\ |\




Power Formula for Flocculation due to shaft - CORRECT
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ANSWERS ✔✔P=(Cd*A*Gamma*v^3) / (2g)
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Where |\




Cd= 1.8
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